Association of tuberculosis with smoking and indoor air pollution

Jan 16, 2007

Smokers have an increased risk of tuberculosis (TB) infection, TB disease, and of dying from TB compared to people who do not smoke.

A new study from Hsien-Ho Lin and colleagues at Harvard School of Public Health reviewed the published evidence for an association between tobacco smoking, passive smoking, and indoor air pollution from fuels such as wood and charcoal and the risk of infection, disease, and death from TB. Among hundreds of reports from electronic databases, the authors reviewed 33 eligible papers on tobacco smoking and TB, five papers on passive smoking and TB, and five on indoor air pollution and TB.

The researchers separately assessed different aspects of TB risk: TB infection as measured by a positive tuberculin skin test, TB disease, and mortality from TB. They found an approximately 2-fold increase in risk of TB infection among smokers as compared with nonsmokers. The great majority of studies evaluating the link between active smoking and TB disease or TB mortality also showed an association, but these data could not be combined together because of wide potential differences between the studies. In addition, there was some association of TB with passive smoking, and also with indoor air pollution, though the evidence for these associations was more limited, and will need to be confirmed by further work.

The authors conclude that "TB control programs might benefit from a focus on interventions aimed at reducing tobacco and indoor air pollution exposures, especially among those at high risk for exposure to TB".

Source: Public Library of Science

Explore further: Restrictions lifted at British bird flu farm

add to favorites email to friend print save as pdf

Related Stories

Probing Question: Is indoor air pollution really a problem?

Apr 30, 2009

A popular television commercial from the 1970s shows a Native American man in buckskin and feathers paddling his canoe through ink-black waters, past refineries billowing smoke. He comes aground on a litter-strewn shoreline ...

Recommended for you

Restrictions lifted at British bird flu farm

11 hours ago

Britain on Sunday lifted all restrictions at a duck farm in northern England after last month's outbreak of H5N8 bird flu, the same strain seen in recent cases across Europe.

Recorded Ebola deaths top 7,000

Dec 20, 2014

The worst Ebola outbreak on record has now killed more than 7,000 people, with many of the latest deaths reported in Sierra Leone, the World Health Organization said as United Nations Secretary-General Ban ...

Liberia holds Senate vote amid Ebola fears (Update)

Dec 20, 2014

Health workers manned polling stations across Liberia on Saturday as voters cast their ballots in a twice-delayed Senate election that has been criticized for its potential to spread the deadly Ebola disease.

Evidence-based recs issued for systemic care in psoriasis

Dec 19, 2014

(HealthDay)—For appropriately selected patients with psoriasis, combining biologics with other systemic treatments, including phototherapy, oral medications, or other biologic, may result in greater efficacy ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.