The effect of using different reference dates for control exposure measurement on relative risk estimates in a case-control study

Año de publicación

1993

UUID

5c85f4f7-3e8d-43db-97e7-4af78b1b0003

Resumen

Artículo científico -- Universidad de Costa Rica, Instituto de Investigaciones en Saud. 1993. Debido a las políticas de la revista en la que el artículo fue publicado, no es posible distribuir la edición del editor/PDF. In case-control studies in which case and control enrollment periods are not identical, exposure status for time-dependent variables is often measured relative to a reference date. Using data from a case-control study of the relation between cervical cancer and oral contraceptive (OC) use in which control enrollment began 6 months after the end of case enrollment, we evaluated the effect on odds ratios from using five different reference dates to determine the controls' exposure status. The choice of reference date had little effect on the odds ratios in this study. Reference dates for time-dependent exposure variables should be considered carefully in studies when case and control enrollment periods are not identical.

Publicador

Journal Clinical Epidemiologycal, Vol. 46, no. 5

Enlace del origen de la publicación

Documentación restringida

No

Tipo de publicación

Article

Descriptores

• ESTIMACIONES
• ESTUDIOS DE CASOS
• METODOLOGIA