Re: Body Mass Index and Risk of Lung Cancer Among Never, Former, and Current Smokers

Using a standardized series of dose– response cancer-specific meta-analyses, we previously reported positive associations between body mass index (BMI) and the risks of several cancers (1). Two smokingrelated cancers, namely lung and esophageal squamous cell carcinoma, were notable exceptions: the risks of these cancers were inversely associated with BMI. Given the established observation that BMI values are generally lower in current smokers...