Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Forest plots of comparison of (a) age, (b) gender (c) hypertension, (d) diabetes mellitus, and (e) coronary artery disease. The solid squares denote the odds ratio, the horizontal lines represent the 95% confidence intervals (CIs), and the diamond denotes the pooled effect size. GI, gastrointestinal; M–H, Mantel–Haenszel test
