In adult Chinese men, smoking prevalence is high, but little is known about its association with chronic respiratory disease, which is still poorly diagnosed and managed. This new study looked at CKP participants’ smoking habits alongside self-reported physician diagnosis of chronic bronchitis/emphysema and measurements of lung function. It shows that in Mainland China, adult smokers, particularly ex-smokers who had quit because of illness, had significantly higher prevalence of chronic respiratory disease. Airflow obstruction (AFO) appeared to be more strongly associated with smoking than self-reported chronic respiratory disease. Read the paper here.