Stratification analysis for associations between combined risk genotypes of <i>mTOR</i> variants and prostate cancer risk.

a<p>Obtained in logistic dominant models with adjustment for age, smoking status and BMI.</p>b<p><i>P</i> for homogeneity test using the χ2-based Q test.</p>c<p>Test for multiplicative interaction obtained from logistic regression models with adjustment for age, smoking status and BMI.</p><p>CI, confidence interval; BMI, body mass index.</p><p>The results were in bold, if <i>P</i><0.05.