Journal Article

Validating California Teachers Study Self-Reports of Recent Hospitalization: Comparison with California Hospital Discharge Data

Sarah F. Marshall, Dennis Deapen, Mark Allen, Hoda Anton-Culver, Leslie Bernstein, Pamela L. Horn-Ross, David Peel, Rich Pinder, Peggy Reynolds, Ronald K. Ross, Dee West and Al Ziogas

in American Journal of Epidemiology

Published on behalf of Johns Hopkins Bloomberg School of Public Health

Volume 158, issue 10, pages 1012-1020
Published in print November 2003 | ISSN: 0002-9262
Published online November 2003 | e-ISSN: 1476-6256 | DOI: https://dx.doi.org/10.1093/aje/kwg256
Validating California Teachers Study Self-Reports of Recent Hospitalization: Comparison with California Hospital Discharge Data

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Determining an accurate method of obtaining complete morbidity data is a long-standing challenge for epidemiologists. The authors compared the accuracy and completeness of existing California hospital discharge data with self-reports of recent hospitalizations and surgeries from participants in the California Teachers Study. Self-reports were collected by questionnaire in 1997 from 91,433 female teachers and administrators residing in California. Of the 13,430 hospital discharge diagnoses identified for these women, cohort members reported 58%. Self-reporting was highest for neoplasms and musculoskeletal and connective tissue diseases and was most accurate for scheduled admissions, more recent admissions, longer lengths of stay, and less severe disorders. Hospitalizations for mental health and infectious disease were not as well reported. Among the 26,383 self-reports—including outpatient surgeries, which are not captured by the hospital discharge database—confirmation was lower, as expected, especially for disorders of the nervous system and sense organs and skin and subcutaneous tissue. Confirmation was highest for childbirth admissions. The hospital discharge database was more specific, but the self-reports were more comprehensive, since many conditions are now treated in outpatient settings. The combination of self-reports and secondary medical records provides more accurate and complete morbidity data than does use of either source alone.

Keywords: data collection; epidemiologic methods; hospital records; prospective studies; Abbreviations: CI, confidence interval; ICD-9, International Classification of Diseases, Ninth Revision; OR, odds ratio; OSHPD, Office of Statewide Health Planning and Development.

Journal Article.  5959 words. 

Subjects: Public Health and Epidemiology

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