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    Last Name
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    Arlene S Ash PhD

    TitleProfessor
    InstitutionUniversity of Massachusetts Medical School
    DepartmentQuantitative Health Sciences
    AddressUniversity of Massachusetts Medical School
    368 Plantation Street, AS9-2071
    Worcester MA 01605
    Phone508-856-8922
      Other Positions
      InstitutionUMMS - Graduate School of Biomedical Sciences
      DepartmentClinical Population Health Research

      InstitutionUMMS - Graduate School of Biomedical Sciences
      DepartmentMasters in Clinical Investigation

        Overview 
        Narrative

        Biography:

        Dr. Ash is a methods expert on risk adjustment in health services research.Dr. Ash has pioneered tools for using administrative data to monitor and manage health care delivery systems, including those now relied upon by the US Medicare program. In 1996, she co-founded DxCG, Inc., a company with over 350 national and international clients to promote “fair and efficient health care” via predictive software. DxCG is now the science division of Verisk Health, where Dr. Ash provides regular consulting. Many of her more than 150 research publications reflect her long-standing interests in women’s health; gender, age and racial disparities; and, quality, equity and efficiency in health care financing and delivery. She is also actively involved in improving US electoral integrity.

        Other:

        American Statistical Association’s Committee on Scientific and Public Affairs (2003-present), Chair of its Subcommittee on Electoral Integrity (2004-2009).
        Founding member of two health centers, Chicago (1973-1976)
        Board of directors, Fenway Community Development Corporation (1981-2003) and President (1991-1994)
        Cofounder (1996) of DxCG, Inc., a predictive modeling health informatics company. DxCG (sold in 2004) is now the science division of Verisk Health, Inc.

        Peace Corps Volunteer (1967-69). Mathematics teaching. Mindanao State U, Philippines.
        Frequent lecturer on Women and Mathematics; encourager of young women to become mathematicians.
        Author of over 150 research publications.
        Fellow of the American Statistical Association and AcademyHealth.
        Recipient of numerous awards for work in statistical methods and applied research.

        Academic Background:

        Ph.D. University of Illinois, Chicago IL

        M.S. Washington University, St Louis, MO

        B.A. Harvard University, Cambridge, MA

        Research:

        Arlene Ash picture faculty web pageDr. Ash is a methods expert on risk adjustment in health services research. Dr. Ash has pioneered tools for using administrative data to monitor and manage health care delivery systems, including those now relied upon by the US Medicare program.In 1996, she co-founded DxCG, Inc., a company with over 350 national and international clients to promote “fair and efficient health care” via predictive software. DxCG is now the science division of Verisk Health, where Dr. Ash provides regular consulting. Many of her more than 150 research publications reflect her long-standing interests in women’s health; gender, age and racial disparities; and, quality, equity and efficiency in health care financing and delivery. She is also actively involved in improving US electoral integrity.



        Bibliographic 
        selected publications
        List All   |   Timeline
        1. Anatchkova MD, Barysauskas CM, Kinney RL, Kiefe CI, Ash AS, Lombardini L, Allison JJ. Psychometric Evaluation of the Care Transition Measure in TRACE-CORE: Do We Need a Better Measure? J Am Heart Assoc. 2014; 3(3).
          View in: PubMed
        2. Efird LM, Mishkin DS, Berlowitz DR, Ash AS, Hylek EM, Ozonoff A, Reisman JI, Zhao S, Jasuja GK, Rose AJ. Stratifying the risks of oral anticoagulation in patients with liver disease. Circ Cardiovasc Qual Outcomes. 2014 May; 7(3):461-7.
          View in: PubMed
        3. Pelletier LR, Johnson SA, Westrick ER, Fontaine ER, Krinsky AD, Klugman RA, Ash AS. Composite model for profiling physicians across domains of care. J Healthc Manag. 2014 May-Jun; 59(3):224-37.
          View in: PubMed
        4. Paradise HT, Berlowitz DR, Ozonoff A, Miller DR, Hylek EM, Ash AS, Jasuja GK, Zhao S, Reisman JI, Rose AJ. Outcomes of anticoagulation therapy in patients with mental health conditions. J Gen Intern Med. 2014 Jun; 29(6):855-61.
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        5. Vats S, Ash AS, Ellis RP. Bending the cost curve? Results from a comprehensive primary care payment pilot. Med Care. 2013 Nov; 51(11):964-9.
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        6. Deng N, Allison JJ, Fang HJ, Ash AS, Ware JE. Using the bootstrap to establish statistical significance for relative validity comparisons among patient-reported outcome measures. Health Qual Life Outcomes. 2013; 11:89.
          View in: PubMed
        7. Efird LM, Miller DR, Ash AS, Berlowitz DR, Ozonoff A, Zhao S, Reisman JI, Jasuja GK, Rose AJ. Identifying the risks of anticoagulation in patients with substance abuse. J Gen Intern Med. 2013 Oct; 28(10):1333-9.
          View in: PubMed
        8. Doubeni CA, Weinmann S, Adams K, Kamineni A, Buist DS, Ash AS, Rutter CM, Doria-Rose VP, Corley DA, Greenlee RT, Chubak J, Williams A, Kroll-Desrosiers AR, Johnson E, Webster J, Richert-Boe K, Levin TR, Fletcher RH, Weiss NS. Screening colonoscopy and risk for incident late-stage colorectal cancer diagnosis in average-risk adults: a nested case-control study. Ann Intern Med. 2013 Mar 5; 158(5 Pt 1):312-20.
          View in: PubMed
        9. Rose AJ, Miller DR, Ozonoff A, Berlowitz DR, Ash AS, Zhao S, Reisman JI, Hylek EM. Gaps in monitoring during oral anticoagulation: insights into care transitions, monitoring barriers, and medication nonadherence. Chest. 2013 Mar; 143(3):751-7.
          View in: PubMed
        10. Jasuja GK, Reisman JI, Miller DR, Berlowitz DR, Hylek EM, Ash AS, Ozonoff A, Zhao S, Rose AJ. Identifying major hemorrhage with automated data: results of the Veterans Affairs study to improve anticoagulation (VARIA). Thromb Res. 2013 Jan; 131(1):31-6.
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        11. Ash AS, Ellis RP. Risk-adjusted payment and performance assessment for primary care. Med Care. 2012 Aug; 50(8):643-53.
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        12. Shaffer ER, Sarfaty M, Ash AS. Contraceptive insurance mandates. Med Care. 2012 Jul; 50(7):559-61.
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        13. Pololi LH, Krupat E, Civian JT, Ash AS, Brennan RT. Why are a quarter of faculty considering leaving academic medicine? A study of their perceptions of institutional culture and intentions to leave at 26 representative U.S. medical schools. Acad Med. 2012 Jul; 87(7):859-69.
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        14. Rose AJ, Berlowitz DR, Miller DR, Hylek EM, Ozonoff A, Zhao S, Reisman JI, Ash AS. INR targets and site-level anticoagulation control: results from the Veterans AffaiRs Study to Improve Anticoagulation (VARIA). J Thromb Haemost. 2012 Apr; 10(4):590-5.
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        15. Freund KM, Jacobs AK, Pechacek JA, White HF, Ash AS. Disparities by race, ethnicity, and sex in treating acute coronary syndromes. J Womens Health (Larchmt). 2012 Feb; 21(2):126-32.
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        16. Tezcan B, Khazaezadeh N, Ash A, Oteng-Ntim E. Social disparity and intrauterine death: from politics to policies. J Obstet Gynaecol. 2011 Aug; 31(6):507-8.
          View in: PubMed
        17. Rose AJ, Berlowitz DR, Ash AS, Ozonoff A, Hylek EM, Goldhaber-Fiebert JD. The business case for quality improvement: oral anticoagulation for atrial fibrillation. Circ Cardiovasc Qual Outcomes. 2011 Jul; 4(4):416-24.
          View in: PubMed
        18. Rose AJ, Hylek EM, Berlowitz DR, Ash AS, Reisman JI, Ozonoff A. Prompt repeat testing after out-of-range INR values: a quality indicator for anticoagulation care. Circ Cardiovasc Qual Outcomes. 2011 May; 4(3):276-82.
          View in: PubMed
        19. Rose AJ, Hylek EM, Ozonoff A, Ash AS, Reisman JI, Callahan PP, Gordon MM, Berlowitz DR. Relevance of current guidelines for organizing an anticoagulation clinic. Am J Manag Care. 2011 Apr; 17(4):284-9.
          View in: PubMed
        20. Rose AJ, Ozonoff A, Berlowitz DR, Ash AS, Reisman JI, Hylek EM. Reexamining the recommended follow-up interval after obtaining an in-range international normalized ratio value: results from the Veterans Affairs study to improve anticoagulation. Chest. 2011 Aug; 140(2):359-65.
          View in: PubMed
        21. Rose AJ, Hylek EM, Ozonoff A, Ash AS, Reisman JI, Berlowitz DR. Risk-adjusted percent time in therapeutic range as a quality indicator for outpatient oral anticoagulation: results of the Veterans Affairs Study to Improve Anticoagulation (VARIA). Circ Cardiovasc Qual Outcomes. 2011 Jan 1; 4(1):22-9.
          View in: PubMed
        22. Rose AJ, Hylek EM, Ozonoff A, Ash AS, Reisman JI, Berlowitz DR. Patient characteristics associated with oral anticoagulation control: results of the Veterans AffaiRs Study to Improve Anticoagulation (VARIA). J Thromb Haemost. 2010 Oct; 8(10):2182-91.
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        23. Barton B, Ash A. Research that matters. Med Care. 2010 Jul; 48(7):574-5.
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        24. Hanchate AD, Clough-Gorr KM, Ash AS, Thwin SS, Silliman RA. Longitudinal patterns in survival, comorbidity, healthcare utilization and quality of care among older women following breast cancer diagnosis. J Gen Intern Med. 2010 Oct; 25(10):1045-50.
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        25. Givens JL, Tjia J, Zhou C, Emanuel E, Ash AS. Racial and ethnic differences in hospice use among patients with heart failure. Arch Intern Med. 2010 Mar 8; 170(5):427-32.
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        26. Battaglia TA, Santana MC, Bak S, Gokhale M, Lash TL, Ash AS, Kalish R, Tringale S, Taylor JO, Freund KM. Predictors of timely follow-up after abnormal cancer screening among women seeking care at urban community health centers. Cancer. 2010 Feb 15; 116(4):913-21.
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        27. Kronman AC, Freund KM, Hanchate A, Emanuel EJ, Ash AS. Nursing home residence confounds gender differences in Medicare utilization an example of Simpson's paradox. Womens Health Issues. 2010 Mar-Apr; 20(2):105-13.
          View in: PubMed
        28. Sebastiani P, Hadley EC, Province M, Christensen K, Rossi W, Perls TT, Ash AS. A family longevity selection score: ranking sibships by their longevity, size, and availability for study. Am J Epidemiol. 2009 Dec 15; 170(12):1555-62.
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        29. Knapp PE, Showers KM, Phipps JC, Speckman JL, Sternthal E, Freund KM, Ash AS, Apovian CM. Self-monitoring of blood glucose with finger tip versus alternative site sampling: effect on glycemic control in insulin-using patients with type 2 diabetes. Diabetes Technol Ther. 2009 Apr; 11(4):219-25.
          View in: PubMed
        30. Hanchate A, Kronman AC, Young-Xu Y, Ash AS, Emanuel E. Racial and ethnic differences in end-of-life costs: why do minorities cost more than whites? Arch Intern Med. 2009 Mar 9; 169(5):493-501.
          View in: PubMed
        31. Kertesz SG, Posner MA, O'Connell JJ, Swain S, Mullins AN, Shwartz M, Ash AS. Post-hospital medical respite care and hospital readmission of homeless persons. J Prev Interv Community. 2009; 37(2):129-42.
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        32. Kuo TC, Zhao Y, Weir S, Kramer MS, Ash AS. Implications of comorbidity on costs for patients with Alzheimer disease. Med Care. 2008 Aug; 46(8):839-46.
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        33. Hanchate AD, Ash AS, Gazmararian JA, Wolf MS, Paasche-Orlow MK. The Demographic Assessment for Health Literacy (DAHL): a new tool for estimating associations between health literacy and outcomes in national surveys. J Gen Intern Med. 2008 Oct; 23(10):1561-6.
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        34. Kapoor A, Kader B, Cabral H, Ash AS, Berlowitz D. Using the case mix of pressure ulcer healing to evaluate nursing home performance. Am J Med Qual. 2008 Sep-Oct; 23(5):342-9.
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        35. Kronman AC, Ash AS, Freund KM, Hanchate A, Emanuel EJ. Can primary care visits reduce hospital utilization among Medicare beneficiaries at the end of life? J Gen Intern Med. 2008 Sep; 23(9):1330-5.
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        36. Zhao Y, Kuo TC, Weir S, Kramer MS, Ash AS. Healthcare costs and utilization for Medicare beneficiaries with Alzheimer's. BMC Health Serv Res. 2008; 8:108.
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        37. Hanchate AD, Zhang Y, Felson DT, Ash AS. Exploring the determinants of racial and ethnic disparities in total knee arthroplasty: health insurance, income, and assets. Med Care. 2008 May; 46(5):481-8.
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        38. Ash A. Measuring quality. Med Care. 2008 Feb; 46(2):105-8.
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        39. Rose AJ, Backus BM, Gershman ST, Santos P, Ash AS, Battaglia TA. Predictors of aggressive therapy for nonmetastatic prostate carcinoma in Massachusetts from 1998 to 2002. Med Care. 2007 May; 45(5):440-7.
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        40. Battaglia TA, Ash A, Prout MN, Freund KM. Cancer prevention trials and primary care physicians: factors associated with recommending trial enrollment. Cancer Detect Prev. 2006; 30(1):34-7.
          View in: PubMed
        41. Berlowitz DR, Ash AS, Glickman M, Friedman RH, Pogach LM, Nelson AL, Wong AT. Developing a quality measure for clinical inertia in diabetes care. Health Serv Res. 2005 Dec; 40(6 Pt 1):1836-53.
          View in: PubMed
        42. Zhao Y, Ash AS, Ellis RP, Ayanian JZ, Pope GC, Bowen B, Weyuker L. Predicting pharmacy costs and other medical costs using diagnoses and drug claims. Med Care. 2005 Jan; 43(1):34-43.
          View in: PubMed
        43. Shwartz M, Peköz EA, Ash AS, Posner MA, Restuccia JD, Iezzoni LI. Do variations in disease prevalence limit the usefulness of population-based hospitalization rates for studying variations in hospital admissions? Med Care. 2005 Jan; 43(1):4-11.
          View in: PubMed
        44. Charbonneau A, Parker V, Meterko M, Rosen AK, Kader B, Owen RR, Ash AS, Whittle J, Berlowitz DR. The relationship of system-level quality improvement with quality of depression care. Am J Manag Care. 2004 Nov; 10(11 Pt 2):846-51.
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        45. Frayne SM, Skinner KM, Lin H, Ash AS, Freund KM. Effect of patient gender on late-life depression management. J Womens Health (Larchmt). 2004 Oct; 13(8):919-25.
          View in: PubMed
        46. Borzecki AM, Wong AT, Hickey EC, Ash AS, Berlowitz DR. Identifying hypertension-related comorbidities from administrative data: what's the optimal approach? Am J Med Qual. 2004 Sep-Oct; 19(5):201-6.
          View in: PubMed
        47. Ash AS, Carr PL, Goldstein R, Friedman RH. Compensation and advancement of women in academic medicine: is there equity? Ann Intern Med. 2004 Aug 3; 141(3):205-12.
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        48. Borzecki AM, Wong AT, Hickey EC, Ash AS, Berlowitz DR. Can we use automated data to assess quality of hypertension care? Am J Manag Care. 2004 Jul; 10(7 Pt 2):473-9.
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        49. Charbonneau A, Rosen AK, Owen RR, Spiro A, Ash AS, Miller DR, Kazis L, Kader B, Cunningham F, Berlowitz DR. Monitoring depression care: in search of an accurate quality indicator. Med Care. 2004 Jun; 42(6):522-31.
          View in: PubMed
        50. Flory J, Yinong YX, Gurol I, Levinsky N, Ash A, Emanuel E. Place of death: U.S. trends since 1980. Health Aff (Millwood). 2004 May-Jun; 23(3):194-200.
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        51. Peterson NB, Friedman RH, Ash AS, Franco S, Carr PL. Faculty self-reported experience with racial and ethnic discrimination in academic medicine. J Gen Intern Med. 2004 Mar; 19(3):259-65.
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        52. Chuang CH, Waldman LJ, Freund KM, Ash AS. Emergency contraception: prescribing practices of general internists compared with other primary care physicians. Contraception. 2004 Jan; 69(1):43-5.
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        53. Pope GC, Kautter J, Ellis RP, Ash AS, Ayanian JZ, Lezzoni LI, Ingber MJ, Levy JM, Robst J. Risk adjustment of Medicare capitation payments using the CMS-HCC model. Health Care Financ Rev. 2004; 25(4):119-41.
          View in: PubMed
        54. Frayne SM, Freund KM, Skinner KM, Ash AS, Moskowitz MA. Depression management in medical clinics: does healthcare sector make a difference? Am J Med Qual. 2004 Jan-Feb; 19(1):28-36.
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        55. Borzecki AM, Wong AT, Hickey EC, Ash AS, Berlowitz DR. Hypertension control: how well are we doing? Arch Intern Med. 2003 Dec 8-22; 163(22):2705-11.
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        56. Ash AS, Posner MA, Speckman J, Franco S, Yacht AC, Bramwell L. Using claims data to examine mortality trends following hospitalization for heart attack in Medicare. Health Serv Res. 2003 Oct; 38(5):1253-62.
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        57. Peköz EA, Shwartz M, Iezzoni LI, Ash AS, Posner MA, Restuccia JD. Comparing the importance of disease rate versus practice style variations in explaining differences in small area hospitalization rates for two respiratory conditions. Stat Med. 2003 May 30; 22(10):1775-86.
          View in: PubMed
        58. Charbonneau A, Rosen AK, Ash AS, Owen RR, Kader B, Spiro A, Hankin C, Herz LR, Jo V Pugh M, Kazis L, Miller DR, Berlowitz DR. Measuring the quality of depression care in a large integrated health system. Med Care. 2003 May; 41(5):669-80.
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        59. Emanuel EJ, Young-Xu Y, Levinsky NG, Gazelle G, Saynina O, Ash AS. Chemotherapy use among Medicare beneficiaries at the end of life. Ann Intern Med. 2003 Apr 15; 138(8):639-43.
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        60. Berlowitz DR, Young GJ, Hickey EC, Saliba D, Mittman BS, Czarnowski E, Simon B, Anderson JJ, Ash AS, Rubenstein LV, Moskowitz MA. Quality improvement implementation in the nursing home. Health Serv Res. 2003 Feb; 38(1 Pt 1):65-83.
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        61. Berlowitz DR, Ash AS, Hickey EC, Glickman M, Friedman R, Kader B. Hypertension management in patients with diabetes: the need for more aggressive therapy. Diabetes Care. 2003 Feb; 26(2):355-9.
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        62. Zhao Y, Ash AS, Ellis RP, Slaughter JP. Disease burden profiles: an emerging tool for managing managed care. Health Care Manag Sci. 2002 Aug; 5(3):211-9.
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        63. Emanuel EJ, Ash A, Yu W, Gazelle G, Levinsky NG, Saynina O, McClellan M, Moskowitz M. Managed care, hospice use, site of death, and medical expenditures in the last year of life. Arch Intern Med. 2002 Aug 12-26; 162(15):1722-8.
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        64. Restuccia JD, Shwartz M, Kreger BE, Payne SM, Ash AS, Iezzoni LI, Heineke J, Selker HP, Gomes T, Labonte A, Butterly JR. Does more "appropriateness" explain higher rates of cardiac procedures among patients hospitalized with coronary heart disease? Med Care. 2002 Jun; 40(6):500-9.
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        65. Berlowitz DR, Christiansen CL, Brandeis GH, Ash AS, Kader B, Morris JN, Moskowitz MA. Profiling nursing homes using Bayesian hierarchical modeling. J Am Geriatr Soc. 2002 Jun; 50(6):1126-30.
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        66. Yu W, Ellis RP, Ash A. Risk selection in the Massachusetts State employee health insurance program. Health Care Manag Sci. 2001 Dec; 4(4):281-7.
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        67. Zhao Y, Ellis RP, Ash AS, Calabrese D, Ayanian JZ, Slaughter JP, Weyuker L, Bowen B. Measuring population health risks using inpatient diagnoses and outpatient pharmacy data. Health Serv Res. 2001 Dec; 36(6 Pt 2):180-93.
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        68. Ash AS, Zhao Y, Ellis RP, Schlein Kramer M. Finding future high-cost cases: comparing prior cost versus diagnosis-based methods. Health Serv Res. 2001 Dec; 36(6 Pt 2):194-206.
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        69. Berlowitz DR, Young GJ, Hickey EC, Joseph J, Anderson JJ, Ash AS, Moskowitz MA. Clinical practice guidelines in the nursing home. Am J Med Qual. 2001 Nov-Dec; 16(6):189-95.
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        70. Levinsky NG, Yu W, Ash A, Moskowitz M, Gazelle G, Saynina O, Emanuel EJ. Influence of age on Medicare expenditures and medical care in the last year of life. JAMA. 2001 Sep 19; 286(11):1349-55.
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        71. Berlowitz DR, Brandeis GH, Morris JN, Ash AS, Anderson JJ, Kader B, Moskowitz MA. Deriving a risk-adjustment model for pressure ulcer development using the Minimum Data Set. J Am Geriatr Soc. 2001 Jul; 49(7):866-71.
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        72. Rosen A, Wu J, Chang BH, Berlowitz D, Rakovski C, Ash A, Moskowitz M. Risk adjustment for measuring health outcomes: an application in VA long-term care. Am J Med Qual. 2001 Jul-Aug; 16(4):118-27.
          View in: PubMed
        73. Berlowitz DR, Brandeis GH, Anderson JJ, Ash AS, Kader B, Morris JN, Moskowitz MA. Evaluation of a risk-adjustment model for pressure ulcer development using the Minimum Data Set. J Am Geriatr Soc. 2001 Jul; 49(7):872-6.
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        74. Taylor JS, Friedman RH, Speckman JL, Ash AS, Moskowitz MA, Carr PL. Fellowship training and career outcomes for primary care physician-faculty. Acad Med. 2001 Apr; 76(4):366-72.
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        75. Virnig BA, Ash A, Kind S, Mesler DE. Survival analysis using Medicare data: example and methods. Health Serv Res. 2000 Dec; 35(5 Pt 3):86-101.
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        76. McCarthy EP, Burns RB, Freund KM, Ash AS, Shwartz M, Marwill SL, Moskowitz MA. Mammography use, breast cancer stage at diagnosis, and survival among older women. J Am Geriatr Soc. 2000 Oct; 48(10):1226-33.
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        77. Ramani S, Byrne-Logan S, Freund KM, Ash A, Yu W, Moskowitz MA. Gender differences in the treatment of cerebrovascular disease. J Am Geriatr Soc. 2000 Jul; 48(7):741-5.
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        78. Carr PL, Ash AS, Friedman RH, Szalacha L, Barnett RC, Palepu A, Moskowitz MM. Faculty perceptions of gender discrimination and sexual harassment in academic medicine. Ann Intern Med. 2000 Jun 6; 132(11):889-96.
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        79. Rosen A, Wu J, Chang BH, Berlowitz D, Ash A, Moskowitz M. Does diagnostic information contribute to predicting functional decline in long-term care? Med Care. 2000 Jun; 38(6):647-59.
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        80. Yu W, Ash AS, Levinsky NG, Moskowitz MA. Intensive care unit use and mortality in the elderly. J Gen Intern Med. 2000 Feb; 15(2):97-102.
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        81. Palepu A, Carr PL, Friedman RH, Ash AS, Moskowitz MA. Specialty choices, compensation, and career satisfaction of underrepresented minority faculty in academic medicine. Acad Med. 2000 Feb; 75(2):157-60.
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        82. Ash AS, Ellis RP, Pope GC, Ayanian JZ, Bates DW, Burstin H, Iezzoni LI, MacKay E, Yu W. Using diagnoses to describe populations and predict costs. Health Care Financ Rev. 2000; 21(3):7-28.
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        83. Pope GC, Ellis RP, Ash AS, Liu CF, Ayanian JZ, Bates DW, Burstin H, Iezzoni LI, Ingber MJ. Principal inpatient diagnostic cost group model for Medicare risk adjustment. Health Care Financ Rev. 2000; 21(3):93-118.
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        84. Ghali WA, Hall RE, Ash AS, Moskowitz MA. Identifying pre- and postoperative predictors of cost and length of stay for coronary artery bypass surgery. Am J Med Qual. 1999 Nov-Dec; 14(6):248-54.
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        85. Levinsky NG, Ash AS, Yu W, Moskowitz MA. Patterns of use of common major procedures in medical care of older adults. J Am Geriatr Soc. 1999 May; 47(5):553-8.
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        86. Mesler DE, Byrne-Logan S, McCarthy EP, Ash AS, Moskowitz MA. How much better can we predict dialysis patient survival using clinical data? Health Serv Res. 1999 Apr; 34(1 Pt 2):365-75.
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        87. Burns RB, Moskowitz MA, Ash A, Kane RL, Finch M, McCarthy EP. Do hip replacements improve outcomes for hip fracture patients? Med Care. 1999 Mar; 37(3):285-94.
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        88. Mesler DE, McCarthy EP, Byrne-Logan S, Ash AS, Moskowitz MA. Does the survival advantage of nonwhite dialysis patients persist after case mix adjustment? Am J Med. 1999 Mar; 106(3):300-6.
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        89. Ash A, Shwartz M. R2: a useful measure of model performance when predicting a dichotomous outcome. Stat Med. 1999 Feb 28; 18(4):375-84.
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        90. Ghali WA, Ash AS, Hall RE, Moskowitz MA. Variation in hospital rates of intraaortic balloon pump use in coronary artery bypass operations. Ann Thorac Surg. 1999 Feb; 67(2):441-5.
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        91. Rosen AK, Berlowitz DR, Anderson JJ, Ash AS, Kazis LE, Moskowitz MA. Functional status outcomes for assessment of quality in long-term care. Int J Qual Health Care. 1999 Feb; 11(1):37-46.
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        92. Berlowitz DR, Anderson JJ, Brandeis GH, Lehner LA, Brand HK, Ash AS, Moskowitz MA. Pressure ulcer development in the VA: characteristics of nursing homes providing best care. Am J Med Qual. 1999 Jan-Feb; 14(1):39-44.
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        93. Berlowitz DR, Ash AS, Hickey EC, Friedman RH, Glickman M, Kader B, Moskowitz MA. Inadequate management of blood pressure in a hypertensive population. N Engl J Med. 1998 Dec 31; 339(27):1957-63.
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        94. Carr PL, Ash AS, Friedman RH, Scaramucci A, Barnett RC, Szalacha L, Palepu A, Moskowitz MA. Relation of family responsibilities and gender to the productivity and career satisfaction of medical faculty. Ann Intern Med. 1998 Oct 1; 129(7):532-8.
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        95. Palepu A, Carr PL, Friedman RH, Amos H, Ash AS, Moskowitz MA. Minority faculty and academic rank in medicine. JAMA. 1998 Sep 2; 280(9):767-71.
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        96. Berlowitz DR, Ash AS, Hickey EC, Kader B, Friedman R, Moskowitz MA. Profiling outcomes of ambulatory care: casemix affects perceived performance. Med Care. 1998 Jun; 36(6):928-33.
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        97. Berlowitz DR, Anderson JJ, Ash AS, Brandeis GH, Brand HK, Moskowitz MA. Reducing random variation in reported rates of pressure ulcer development. Med Care. 1998 Jun; 36(6):818-25.
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        98. Ghali WA, Hall RE, Ash AS, Rosen AK, Moskowitz MA. Evaluation of complication rates after coronary artery bypass surgery using administrative data. Methods Inf Med. 1998 Jun; 37(2):192-200.
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        99. McCarthy EP, Burns RB, Coughlin SS, Freund KM, Rice J, Marwill SL, Ash A, Shwartz M, Moskowitz MA. Mammography use helps to explain differences in breast cancer stage at diagnosis between older black and white women. Ann Intern Med. 1998 May 1; 128(9):729-36.
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        100. Palepu A, Friedman RH, Barnett RC, Carr PL, Ash AS, Szalacha L, Moskowitz MA. Junior faculty members' mentoring relationships and their professional development in U.S. medical schools. Acad Med. 1998 Mar; 73(3):318-23.
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        101. Barnett RC, Carr P, Boisnier AD, Ash A, Friedman RH, Moskowitz MA, Szalacha L. Relationships of gender and career motivation to medical faculty members' production of academic publications. Acad Med. 1998 Feb; 73(2):180-6.
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        102. Iezzoni LI, Ash AS, Shwartz M, Landon BE, Mackiernan YD. Predicting in-hospital deaths from coronary artery bypass graft surgery. Do different severity measures give different predictions? Med Care. 1998 Jan; 36(1):28-39.
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        103. Berlowitz DR, Ash A, Friedman R, Hickey E, Kader B, Moskowitz MA. Problems in assessing diabetes control in an ambulatory setting. Am J Med Qual. 1998; 13(2):89-93.
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        104. Berlowitz DR, Ash AS, Hickey EC, Friedman RH, Kader B, Moskowitz MA. Outcomes of hypertension care. Simple measures are not that simple. Med Care. 1997 Jul; 35(7):742-6.
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        105. Hall RE, Ash AS, Ghali WA, Moskowitz MA. Hospital cost of complications associated with coronary artery bypass graft surgery. Am J Cardiol. 1997 Jun 15; 79(12):1680-2.
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        106. Burns RB, McCarthy EP, Moskowitz MA, Ash A, Kane RL, Finch M. Outcomes for older men and women with congestive heart failure. J Am Geriatr Soc. 1997 Mar; 45(3):276-80.
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        107. Burns RB, Moskowitz MA, Ash A, Kane RL, Finch M, McCarthy EP. Variations in the performance of hip fracture procedures. Med Care. 1997 Mar; 35(3):196-203.
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        108. Ghali WA, Ash AS, Hall RE, Moskowitz MA. Statewide quality improvement initiatives and mortality after cardiac surgery. JAMA. 1997 Feb 5; 277(5):379-82.
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        109. Iezzoni LI, Ash AS, Shwartz M, Mackiernan YD. Differences in procedure use, in-hospital mortality, and illness severity by gender for acute myocardial infarction patients: are answers affected by data source and severity measure? Med Care. 1997 Feb; 35(2):158-71.
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        110. Iezzoni LI, Ash AS, Shwartz M, Daley J, Hughes JS, Mackiernan YD. Judging hospitals by severity-adjusted mortality rates: the influence of the severity-adjustment method. Am J Public Health. 1996 Oct; 86(10):1379-87.
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        111. Shwartz M, Iezzoni LI, Ash AS, Mackiernan YD. Do severity measures explain differences in length of hospital stay? The case of hip fracture. Health Serv Res. 1996 Oct; 31(4):365-85.
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        112. Iezzoni LI, Shwartz M, Ash AS, Mackiernan YD. Predicting in-hospital mortality for stroke patients: results differ across severity-measurement methods. Med Decis Making. 1996 Oct-Dec; 16(4):348-56.
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        113. Collins MF, Friedman RH, Ash A, Hall R, Moskowitz MA. Underdetection of clinical benign prostatic hyperplasia in a general medical practice. J Gen Intern Med. 1996 Sep; 11(9):513-8.
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        114. Ash A. Identifying poor-quality hospitals with mortality rates. Often there's more noise than signal. Med Care. 1996 Aug; 34(8):735-6.
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        115. Burns RB, McCarthy EP, Freund KM, Marwill SL, Shwartz M, Ash A, Moskowitz MA. Variability in mammography use among older women. J Am Geriatr Soc. 1996 Aug; 44(8):922-6.
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        116. Shwartz M, Iezzoni LI, Moskowitz MA, Ash AS, Sawitz E. The importance of comorbidities in explaining differences in patient costs. Med Care. 1996 Aug; 34(8):767-82.
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        117. Burns RB, McCarthy EP, Freund KM, Marwill SL, Shwartz M, Ash A, Moskowitz MA. Black women receive less mammography even with similar use of primary care. Ann Intern Med. 1996 Aug 1; 125(3):173-82.
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        118. Du W, Ash AS, Berlowitz DR, Schwartz JS, Moskowitz MA. Variations in the management of acute myocardial infarction. Importance of clinical measures of disease severity. J Gen Intern Med. 1996 Jun; 11(6):334-41.
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        119. Burns RB, Freund KM, Ash AS, Shwartz M, Antab L, Hall R. As mammography use increases, are some providers omitting clinical breast examination? Arch Intern Med. 1996 Apr 8; 156(7):741-4.
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        120. Iezzoni LI, Shwartz M, Ash AS, Mackiernan YD. Does severity explain differences in hospital length of stay for pneumonia patients? J Health Serv Res Policy. 1996 Apr; 1(2):65-76.
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        121. Berlowitz DR, Ash AS, Brandeis GH, Brand HK, Halpern JL, Moskowitz MA. Rating long-term care facilities on pressure ulcer development: importance of case-mix adjustment. Ann Intern Med. 1996 Mar 15; 124(6):557-63.
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        122. Ghali WA, Hall RE, Rosen AK, Ash AS, Moskowitz MA. Searching for an improved clinical comorbidity index for use with ICD-9-CM administrative data. J Clin Epidemiol. 1996 Mar; 49(3):273-8.
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        123. Berlowitz DR, Brandeis GH, Brand HK, Halpern J, Ash AS, Moskowitz MA. Evaluating pressure ulcer occurrence in long-term care: pitfalls in interpreting administrative data. J Clin Epidemiol. 1996 Mar; 49(3):289-92.
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        124. Iezzoni LI, Shwartz M, Ash AS, Mackiernan YD. Using severity measures to predict the likelihood of death for pneumonia inpatients. J Gen Intern Med. 1996 Jan; 11(1):23-31.
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        125. Iezzoni LI, Shwartz M, Ash AS, Hughes JS, Daley J, Mackiernan YD. Severity measurement methods and judging hospital death rates for pneumonia. Med Care. 1996 Jan; 34(1):11-28.
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        126. Restuccia J, Shwartz M, Ash A, Payne S. High hospital admission rates and inappropriate care. Health Aff (Millwood). 1996; 15(4):156-63.
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        127. Landon B, Iezzoni LI, Ash AS, Shwartz M, Daley J, Hughes JS, Mackiernan YD. Judging hospitals by severity-adjusted mortality rates: the case of CABG surgery. Inquiry. 1996; 33(2):155-66.
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        128. Ellis RP, Pope GC, Iezzoni L, Ayanian JZ, Bates DW, Burstin H, Ash AS. Diagnosis-based risk adjustment for Medicare capitation payments. Health Care Financ Rev. 1996; 17(3):101-28.
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        129. Iezzoni LI, Ash AS, Shwartz M, Daley J, Hughes JS, Mackiernan YD. Predicting who dies depends on how severity is measured: implications for evaluating patient outcomes. Ann Intern Med. 1995 Nov 15; 123(10):763-70.
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        130. Burns RB, Freund KM, Ash A, Shwartz M, Antab L, Hall R. Who gets repeat screening mammography: the role of the physician. J Gen Intern Med. 1995 Sep; 10(9):520-2.
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        131. Ash A. The design and analysis of hospital utilization studies. Int J Qual Health Care. 1995 Sep; 7(3):245-52.
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        132. Iezzoni LI, Shwartz M, Ash AS, Hughes JS, Daley J, Mackiernan YD. Using severity-adjusted stroke mortality rates to judge hospitals. Int J Qual Health Care. 1995 Jun; 7(2):81-94.
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        133. Shwartz M, Klimberg RK, Karp M, Iezzoni LI, Ash AS, Heineke J, Payne SM, Restuccia JD. An integer programming model to limit hospital selection in studies with repeated sampling. Health Serv Res. 1995 Jun; 30(2):359-76.
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        134. Rosen AK, Ash AS, McNiff KJ, Moskowitz MA. The importance of severity of illness adjustment in predicting adverse outcomes in the Medicare population. J Clin Epidemiol. 1995 May; 48(5):631-43.
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        135. Rosen AK, Ash AS, Geraci JM, McCarthy EP, Moskowitz MA. Postoperative adverse events of cholecystectomy in the Medicare population. Am J Med Qual. 1995; 10(1):29-37.
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        136. Ellis RP, Ash A. Refinements to the Diagnostic Cost Group (DCG) model. Inquiry. 1995-1996 Winter; 32(4):418-29.
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        137. Shwartz M, Ash AS, Anderson J, Iezzoni LI, Payne SM, Restuccia JD. Small area variations in hospitalization rates: how much you see depends on how you look. Med Care. 1994 Mar; 32(3):189-201.
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        138. Iezzoni LI, Shwartz M, Ash AS, Mackiernan Y, Hotchkin EK. Risk adjustment methods can affect perceptions of outcomes. Am J Med Qual. 1994; 9(2):43-8.
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        139. Iezzoni LI, Hotchkin EK, Ash AS, Shwartz M, Mackiernan Y. MedisGroups data bases. The impact of data collection guidelines on predicting in-hospital mortality. Med Care. 1993 Mar; 31(3):277-83.
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        140. Geraci JM, Rosen AK, Ash AS, McNiff KJ, Moskowitz MA. Predicting the occurrence of adverse events after coronary artery bypass surgery. Ann Intern Med. 1993 Jan 1; 118(1):18-24.
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        141. Rosen AK, Geraci JM, Ash AS, McNiff KJ, Moskowitz MA. Postoperative adverse events of common surgical procedures in the Medicare population. Med Care. 1992 Sep; 30(9):753-65.
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        142. Burns RB, Moskowitz MA, Ash A, Kane RL, Finch MD, Bak SM. Self-report versus medical record functional status. Med Care. 1992 May; 30(5 Suppl):MS85-95.
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        143. Iezzoni LI, Ash AS, Coffman GA, Moskowitz MA. Predicting in-hospital mortality. A comparison of severity measurement approaches. Med Care. 1992 Apr; 30(4):347-59.
          View in: PubMed
        144. Noble J, Friedman RH, Starfield B, Ash A, Black C. Career differences between primary care and traditional trainees in internal medicine and pediatrics. Ann Intern Med. 1992 Mar 15; 116(6):482-7.
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        145. Iezzoni LI, Ash AS, Coffman GA, Moskowitz MA. Admission and mid-stay MedisGroups scores as predictors of hospitalization charges. Med Care. 1991 Mar; 29(3):210-20.
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        146. Iezzoni LI, Ash AS, Coffman G, Moskowitz MA. Admission and mid-stay MedisGroups scores as predictors of death within 30 days of hospital admission. Am J Public Health. 1991 Jan; 81(1):74-8.
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        147. Payne SM, Restuccia JD, Ash A, Shwartz M, Tarr L, Williams B. Using utilization review information to improve hospital efficiency. Hosp Health Serv Adm. 1991; 36(4):473-90.
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        148. Cashman SB, Ash A, Parks CL, Bicknell WJ. The patient population of a major chain of investor-owned ambulatory care walk-in centers. J Ambul Care Manage. 1991 Jan; 14(1):66-77.
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        149. Ash A, Schwartz M, Payne SM, Restuccia JD. The Self-Adapting Focused Review System. Probability sampling of medical records to monitor utilization and quality of care. Med Care. 1990 Nov; 28(11):1025-39.
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        150. Iezzoni LI, Shwartz M, Moskowitz MA, Ash AS, Sawitz E, Burnside S. Illness severity and costs of admissions at teaching and nonteaching hospitals. JAMA. 1990 Sep 19; 264(11):1426-31.
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        151. Cashman SB, Parks CL, Ash A, Hemenway D, Bicknell WJ. Physician satisfaction in a major chain of investor-owned walk-in centers. Health Care Manage Rev. 1990; 15(3):47-57.
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        152. Ende J, Kazis L, Ash A, Moskowitz MA. Measuring patients' desire for autonomy: decision making and information-seeking preferences among medical patients. J Gen Intern Med. 1989 Jan-Feb; 4(1):23-30.
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        153. Ash A, Porell F, Gruenberg L, Sawitz E, Beiser A. Adjusting Medicare capitation payments using prior hospitalization data. Health Care Financ Rev. 1989; 10(4):17-29.
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        154. Iezzoni LI, Ash AS, Cobb JL, Moskowitz MA. Admission MedisGroups score and the cost of hospitalizations. Med Care. 1988 Nov; 26(11):1068-80.
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        155. Boffa J, Shwartz M, Ash A, Pliskin JS, Gröndahl HG. Bilateral dental caries from the individual perspective: a definition and a statistical test for its existence. Caries Res. 1986; 20(1):91-5.
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