Data dredging, bias, or confounding.
Smith
George Davey
GD
Ebrahim
Shah
S
D015982:Bias; D015986:Confounding Factors, Epidemiologic; D003625:Data Collection / Q000379:methods; D003627:Data Interpretation, Statistical; D008019:Life Style; D010506:Periodicals as Topic; D016032:Randomized Controlled Trials as Topic