Distribution frequencies of <i>MTNR1A</i> genotypes in 560 controls and 618 oral-cancer patients.

<p>Odds ratios (ORs) and with their 95% confidence intervals (CIs) were estimated by logistic regression models. Adjusted ORs (AORs) with their 95% CIs were estimated by multiple logistic regression models after controlling for age, gender, betel nut chewing, and tobacco and alcohol consumption.</p><p>Distribution frequencies of <i>MTNR1A</i> genotypes in 560 controls and 618 oral-cancer patients.