Smoking and reverse causation create an obesity paradox in cardiovascular disease

Objective Many studies find that excess weight is associated with better survival among individuals with cardiovascular disease (CVD). Investigations were carried out to see whether this “obesity paradox” can be explained by biases. Methods The association between weight status and mortality in the US population ages 35 and above with CVD was investigated. Data were obtained from the National Health and Nutrition Examination Survey, 1988‐2010,...