Helicobacter pylori and myocardial infection. Excluding group with potentially higher rates of infection with H pylori could bias estimated odds ratio.
Armitage
C
C
Deighton
J
J
Jameson
S
S
Wheatley
R
R
D015982:Bias; D016022:Case-Control Studies; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006801:Humans; D009203:Myocardial Infarction / Q000382:microbiology*; D016017:Odds Ratio; D012107:Research Design