-- Robert Preidt
FRIDAY, Aug. 15, 2014 (HealthDay News) -- Three common
respiratory diseases seem to be associated with an increased risk
of lung cancer, researchers report.
The investigators analyzed data from seven studies that included
more than 25,000 people and found that chronic bronchitis,
emphysema and pneumonia were linked with a greater risk of
developing lung cancer.
Having asthma or tuberculosis was not associated with a higher
lung cancer risk, according to the study published in the Aug. 15
issue of the
American Journal of Respiratory and Critical Care
People who had all three -- chronic bronchitis, emphysema and
pneumonia -- had a higher risk of lung cancer than those with
chronic bronchitis only. There was no increased risk of lung cancer
among those who had chronic bronchitis along with asthma or
tuberculosis, the study found.
In a journal news release, study author Ann Olsson said the
reason respiratory illnesses may affect lung cancer risk in
different ways could have to do with underlying disease
A better understanding of the links between respiratory ailments
and lung cancer may help inform doctors on how best to monitor and
help patients, said Olsson, of the International Agency for
Research in Cancer in Lyon, France.
Although the study found an association between certain
respiratory diseases and lung cancer risk, it did not prove a
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