We read with great interest the recent meta-analysis by Bates et al1 on the risk of tuberculosis from exposure to tobacco smoke.1 Because both smoking and tuberculosis are still major killers, especially in developing countries, such a meta-analysis has been long awaited. However, a few points might warrant further discussion.
Leung CC, Lam TH, Yew WW. Smoking and Tuberculosis: Infection, Disease, and Mortality. Arch Intern Med. 2007;167(18):2008-2009. doi:10.1001/archinte.167.18.2008-b