title: Confounding: what is it and how do we deal with it?
authors.affiliation: Department of Surgery, McMaster University, Hamilton, Ont. braga@mcmaster.ca
authors.forename: Luis Henrique P
authors.initials: LH
authors.lastname: Braga
authors.forename: Forough
authors.initials: F
authors.lastname: Farrokhyar
authors.forename: Mohit
authors.initials: M
authors.lastname: Bhandari
mesh_terms: D035843:Biomedical Research; D016022:Case-Control Studies; D015986:Confounding Factors, Epidemiologic; D005260:Female; D006801:Humans; D008297:Male; D016555:Matched-Pair Analysis; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D012307:Risk Factors; D012680:Sensitivity and Specificity; D013514:Surgical Procedures, Operative