The natural history of prostatism: the effects of non-response bias.
Int J Epidemiol
; 23(6): 1198-205, 1994 Dec.
Article
em En
| MEDLINE
| ID: mdl-7536718
ABSTRACT
BACKGROUND:
In epidemiological studies, non-response may raise the question of generalizability to the target population. Most investigations have not been able to access data that could provide information about the potential impact of non-response bias.METHODS:
A 55% response rate was realized at baseline for a prospective cohort investigation of the natural history of benign prostatic hyperplasia in Olmsted County, Minnesota, during 1989-1991 (the Olmsted County Study of Urinary Symptoms and Health Status Among Men). This prompted a preliminary study of potential non-response bias among full participants, partial participants and complete non-responders. The medical diagnostic index maintained by the Rochester Epidemiology Project was used to ascertain the prevalence of specific conditions in the 9 years prior to study inception.RESULTS:
The age-adjusted period prevalence rate for benign prostatic hyperplasia (%) was 9.6 (95% confidence interval [CI] 8.1-11.0) for full participants, 8.2 (95% CI 5.8-10.6) for partial participants and 5.3 (95% CI 3.6-6.9) for complete non-responders. Other urologic diagnoses followed the same pattern. However, age-adjusted prevalence rates for general medical examination history and major non-urologic morbidities were decidedly similar across response groups.CONCLUSIONS:
These data suggest response may have been driven, in part, by concerns about urologic disease. However, the similarity in non-urologic diagnoses and general medical examinations provide some preliminary reassurance that the 55% response rate did not necessarily compromise generalizability.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hiperplasia Prostática
/
Transtornos Urinários
/
Métodos Epidemiológicos
Tipo de estudo:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Aspecto:
Patient_preference
Limite:
Adult
/
Aged
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Int J Epidemiol
Ano de publicação:
1994
Tipo de documento:
Article