Reader's guide to critical appraisal of cohort studies: 2. Assessing potential for confounding.

Mamdani, Muhammad; Sykora, Kathy; Li, Ping; Normand, Sharon-Lise T; Streiner, David L; Austin, Peter C; Rochon, Paula A; Anderson, Geoffrey M · BMJ · 2005

review · Level V

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Abstract

Although confounding is an important problem of cohort studies, its effects can be minimised to enable valid comparison

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