Reader's guide to critical appraisal of cohort studies: 2. Assessing potential for confounding.
Mamdani
Muhammad
M
Institute for Clinical Evaluative Sciences, Toronto, ON Canada.
Sykora
Kathy
K
Li
Ping
P
Normand
Sharon-Lise T
SL
Streiner
David L
DL
Austin
Peter C
PC
Rochon
Paula A
PA
Anderson
Geoffrey M
GM
D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D016008:Statistical Distributions