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.
Subgroup analysis for (A) all cancers, (B) lung cancer, (C) prostate cancer, and (D) rectum cancer to analyze the potential modification effects between age, ethnic background, gender, smoking, diabetes, high cholesterol, arthritis, and obesity.
