Esophageal cancer and body mass index: Results from a prospective study of 220,000 men in China and a meta‐analysis of published studies

Several epidemiological studies have reported on the association between body mass index (BMI) and risk of esophageal cancer, but these were mostly in Western populations where many are overweight or obese. There is little direct evidence about the relationship in China where the mean BMI is relatively low and the disease rate is high. We examined the data from a population‐based prospective study of 220,000 Chinese men aged 40–79 without a...