Journal of Clinical Epidemiology
Volume 50, Issue 7 , Pages 829-835 , July 1997

Reliability and Validity of Self-Report CD4 Counts in Persons Hospitalized with HIV Disease

  • William E Cunningham

      Affiliations

    • Division of General Internal Medicine and Health Services Research, Department of Medicine, School of Medicine, University of California, Los Angeles, California 90095 USA
    • Department of Health Services, School of Public Health, University of California, Los Angeles, California 90095 USA
    • Corresponding Author InformationWilliam E. Cunningham, MD, MPH, Rm. 31-254A, Center for Health Sciences, Department of Health Services, UCLA School of Public Health, 10833 Le Conte Ave., Los Angeles, CA 90024. E-mail: 〈wcunning@medicine.medsch.ucla.edu〉
    • ,
  • Hanif M Rana

      Affiliations

    • Department of Health Services, School of Public Health, University of California, Los Angeles, California 90095 USA
    • ,
  • Martin F Shapiro

      Affiliations

    • Division of General Internal Medicine and Health Services Research, Department of Medicine, School of Medicine, University of California, Los Angeles, California 90095 USA
    • ,
  • Ron D Hays

      Affiliations

    • Division of General Internal Medicine and Health Services Research, Department of Medicine, School of Medicine, University of California, Los Angeles, California 90095 USA
    • RAND, Health Sciences Program, Santa Monica, California 90407 USA

,Accepted 11 March 1997.

References 

  1. Masur H, Ognibene FP, Yarchoan R, et al.  CD4 counts as predictors of opportunistic pneumonias in human immunodeficiency virus infection. Ann Intern Med. 1989;111:223–231
  2. Kaslow RA, Phair JP, Friedman HB, Lyter D, et al.  Infection with the human immunodeficiency virus (Clinical manifestations and their relationship to immune deficiency). Ann Intern Med. 1987;107(4):474–480
  3. Pantaleo G, Graziosi C, Fauci AS. The immunopathogenesis of human immunodeficiency virus infection. N Engl J Med. 1993;328(5):327–335
  4. Department of Health and Human Services, Centers for Disease Control . 1993 revised classification system for HIV infection and expanded surveillance case definition for AIDS among adolescents and adults. MMWR. 1992;41(RR-17):
  5. Hays RD, Shapiro MF. An overview of generic health-related quality of life measures for HIV research. Quality of Life Research. 1992;1:91–97
  6. Stein MD, Mor V. The use of multiple physicians among symptomatic HIV-positive persons. Medical Care. 1993;31(10):968–974
  7. Stein DS, Korvick JA, Vermund SH. CD4+ lymphocyte cell enumeration for prediction of clinical course of human immunodeficiency virus disease (A review). J Infect Dis. 1992;165:352–363
  8. Katz MH, Bindman AB, Keane D, Chan AK. CD4 lymphocyte counts as indicator of delay in seeking human immunodeficiency virus-related treatment. Arch Intern Med. 1992;152:1501–1504
  9. Hellinger FJ. The lifetime cost of treating a person with HIV. JAMA. 1993;270(4):474–478
  10. Piette JD, Mor V, Mayer K, Zierler S, Wachtel T. The effects of immune status and race on health service use among people with HIV disease. Am J Public Health. 1993;83(4):510–514
  11. Mohr PE. Patterns of health care use among HIV-infected adults: Preliminary results. AIDS Cost and Services Utilization Survey (ACSUS) Report No. 3, Project Hope. 1994; 1–32.
  12. Cunningham WE, Mosen DM, Hays RD, Andersen RM, Shapiro MF. Access to community-based medical services and number of hospitalizations among patients with HIV disease (Are they related?). J AIDS. 1996;13(4):341–349
  13. Fowler FJ, Massagli MP, Weissman J, Seage GR, et al.  Some methodological lessons for surveys of persons with AIDS. Medical Care. 1992;30(11):1059–1066
  14. Bozzette SA, Hays RD, Berry SH, Kanouse DE. A perceived health index for use in persons with advanced HIV disease (Derivation, reliability, and validity). Medical Care. 1994;32(7):716–731
  15. Stewart AL, Hays RD, Ware JE. Methods of constructing health measures. In: Measuring Functioning and Well Being (The Medical Outcomes Study Approach). Duke University Press; 1992;p. 67–85
  16. Justice AC, Feinstein AR, Wells CK. A new prognostic staging system for the acquired immunodeficiency syndrome. N Engl J Med. 1989;320(21):1388–1393
  17. Turner BJ, Markson LE, McKee L, Houchens R, Fanning T. The AIDS-defining diagnosis and subsequent complications (A survival-based severity index). J Acquir Immune Defic Syndr. 1991;4(10):1059–1071
  18. Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics. 1977;33:159–174
  19. Cohen J. A coefficient of agreement for nominal scales. Educational and Psychological Measurement. 1960;20:37–46
  20. Mitchell JM, O'Brien RW, Semansky RM, Iannotte RJ. Sources of AIDS information for parents and children. Medical Care. 1995;33(4):423–431
  21. Bozzette SA. Towards comprehensive outcome assessment of new medical therapies: Lessons from AIDS. RAND, Santa Monica, CA; RGSD-119; 1995.
  22. Stanton DL, Wu AW, Moore RD, Rucker SC, et al.  Functional status of persons with HIV infection in an ambulatory setting. J AIDS. 1994;7:1050–1056
  23. Cleary PD, Jette AM. The validity of self-reported physician utilization measures. Medical Care. 1984;22(9):796–803
  24. Colditz GA, Martin P, Stampfer MJ, Willett WC, et al.  Validation of questionnaire information on risk factors and disease outcomes in a prospective cohort study of women. A J Epidemiol. 1986;123(5):894–900
  25. Hays RD, Vickery BG, Hermann B, Perrine K, et al.  Agreement between self-reports and proxy reports of quality of life in epilepsy patients. Quality of Life Research. 1995;4(2):159–168
  26. Landry JA, Smyer MA, Tubman JG, Lago DJ, et al.  Validation of two methods of data collection of self-reported medicine use among the elderly. The Gerontological Society of America. 1988;28(5):672–676

PII: S0895-4356(97)00061-9

Journal of Clinical Epidemiology
Volume 50, Issue 7 , Pages 829-835 , July 1997

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