HOME >> MEDICINE >> NEWS
Smoking may be a risk factor for tuberculosis

Smoking appears to increase the risk of becoming infected with tuberculosis and the risk for the development of active disease upon infection, according to an analysis of previously published research in the February 26 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

About one-third of the world's population is infected with the bacteria that cause tuberculosis (TB), but the organism is usually rendered inactive by the immune system, according to background information in the article. Active tuberculosis developed in approximately 8.8 million individuals in 2003 and is responsible for about 1.7 million deaths worldwide each year. "It has long been suggested that tobacco smoking may affect rates of TB morbidity and mortality," the authors write. "This could be a result of increasing the risk of infection with TB mycobacteria, increasing the rate of active TB disease, or increasing the TB mortality rate; plausible mechanisms exist."

Michael N. Bates, Ph.D., and colleagues at the School of Public Health, University of California, Berkeley, performed a meta-analysis of 24 previously published studies that examined the association between smoking and TB. Six of the publications dealt with the risk for TB infection, 13 with active TB disease and five with death from TB.

Across the studies, individuals who smoked had a 73 percent increased risk of becoming infected with tuberculosis and were more than twice as likely to develop active tuberculosis than those who did not smoke. This suggests that smokers are 40 to 60 percent more likely than non-smokers to develop tuberculosis disease after being infected with TB bacteria. The excess risk of death from TB associated with smoking was less than the excess risk of TB disease, suggesting that smoking does not increase the risk of death among those who already have active TB.

There are several potential explanations for the association, although more rese
'"/>

Contact: Sarah Yang
510-643-7741
JAMA and Archives Journals
26-Feb-2007


Page: 1 2

Related medicine news :

1. Smoking may strongly increase long-term risk of eye disease
2. Smoking may interfere with alcoholics neurocognitive recovery during abstinence
3. Smoking rate has plummeted in New York City
4. Smoking and sleep top the list of lifestyle factors impacting oral health
5. Smoking, growing private hospital care for poor and US flu vaccine policies
6. Smoking influences Crohns disease
7. Smoking ban dramatically reduces air pollution in Irish pubs
8. Smoking increases risk of TB infection, says new study
9. Smoking worsens knee osteoarthritis
10. Smoking cessation therapy may be harmful for ICU patients
11. Smoking ban associated with rapid improvement in health of bar workers

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/31/2020)... ... , ... Just found out your dear friend has cancer? , It’s hard to hear your ... shares their diagnosis. Once the shock wears off, the questions and fears can be overwhelming. ... best ways to help? Words are failing me. I’m scared. I want to DO something. ...
(Date:8/31/2020)... ... August 31, 2020 , ... Colorado State University Global (CSU ... affordable online education – is proud to announce its new master’s degree in ... its kind in the nation, the 60-credit hour program is designed to provide ...
(Date:8/31/2020)... ... August 31, 2020 , ... In an effort to give back to ... 10 percent of each hotel room booked with a special new rate code to ... Indiana (RMHC-CNI) , effective immediately. Donations will be applied to any room type, ...
(Date:8/28/2020)... ... 28, 2020 , ... Ernst & Young LLP (EY US) ... Of The Year® 2020 Florida Award finalist. Now in its 34th year, the ... growth and prosperity as they build and sustain successful businesses that transform our ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Integrated ... Miami is the first Florida school to deploy its breakthrough Mobile Biodefense Indoor Air ... airborne COVID-19. True North Classical Academy plans to fully reopen equipped with the filtration ...
Breaking Medicine News(10 mins):
(Date:9/1/2020)... ... September 01, 2020 , ... While coronavirus cases continue to increase across ... and community organizations remain closed. Because about 80% of blood donations are made at ... blood donors and blood drive hosts to ensure blood products are readily available for ...
(Date:8/31/2020)... (PRWEB) , ... August 31, 2020 , ... If you live in New York City ... real estate part makes sense, it’s the law of supply and demand, but are plastic ... has a significant percentage of their patients that make the four-hour trip to have ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Dr. ... reproductive and endoscopic surgeon and serves as a clinical professor in the Department of ... of the American Laparoscopy Society & Pacific Coast Reproductive Society and is a Clinical ...
Breaking Medicine Technology:
Cached News: