Odds ratios (ORs) and 95% confidence intervals (95%CIs) of colorectal cancer according to quartiles of choline and betaine intake.

a Odds ratio was adjusted for age (continuous), sex (men/women), residence (urban/rural), marital status (married/other), education (primary school or blow/secondary school/high school/college or above), income level (8,001), occupation (white collar worker/blue collar worker/farmer or other), family history of cancer (yes/no), smoking status (current/never or past), passive smoking (yes/no), alcohol drinking (yes/no), degree of physical activity (less active/moderate active/more active), BMI (continuous).b Odds ratio was adjusted for the various above confounders and red meat (continuous), fish (continuous).c Odds ratio was adjusted for the various above confounders and red meat (continuous), fish (continuous), beans (continuous).d Odds ratio was adjusted for the various above confounders in b and folate intake (continuous).e Odds ratio was adjusted for the various above confounders in c and folate intake (continuous).Odds ratios (ORs) and 95% confidence intervals (95%CIs) of colorectal cancer according to quartiles of choline and betaine intake.