Confounding factor is associated with:-
Confounding factor Any factor associated with both exposure, outcome and has an independent effect in causation of outcome is a confounder. BEST METHOD TO REMOVE CONFOUNDING:- MATCHING - Removes confounding bias by distributing known confounding factors equally in two groups RANDOMISATION(2ND BEST) RESTRICTION STRATIFICATION STATISTICAL MODELLING/ MULTIVARIATE ANALYSIS STRATIFIED RANDOMISATION (BEST METHOD)
Exposure only
Outcome only
Both exposure and outcome
Neither exposure nor outcome
Confounding and Bias