Crude and adjusted* hazard ratios (HR) and 95% confidence intervals (CI) for use of multivitamin supplements for four upper gastrointestinal cancers in the NIH-AARP Diet and Health Study cohort.

*Adjustments included age at cohort entry, sex, education, smoking status and intensity, alcohol use, fruit intake, vegetable intake, body mass index (BMI), vigorous physical activity, usual physical activity during the day, and total energy intake. ESCC = esophageal squamous cell carcinoma; EADC = esophageal adenocarcinoma; GCA = gastric cardia adenocarcinoma; GNCA = gastric noncardia adenocarcinoma.