Soja verlaagt longkanker onder niet-rokende vrouwen

Research Question:
Eating soy lowers the chances of getting lung cancer among non-smoking women?

Study Design:
This overview article contained 7 prospective cohort studies with women, of which 370 71550 lung cancer who have never smoked, among them got 340. The average follow-up time was 9.1 years.

Results and conclusions:
The researchers found that compared with the lowest soy consumption, the highest soy consumption the chances of getting lung cancer among non-smoking women significantly with 41% [summary RR was 0.59, 95% CI = 0.49-0.71] did decrease.

The researchers concluded that eating soy the chances of getting lung cancer among non-smoking women reduced, particularly for the aggressive tumors.

Original title:
Soy Food Intake and Risk of Lung Cancer: Evidence From the Shanghai women's Health Study and a Meta-Analysis by Yang G, Shu XO, [...], Zheng W.

Link:
http://aje.oxfordjournals.org/content/176/10/846.short

Additional information about El Mondo:
Risk factors of lung cancer among non-smokers are the passive smoking, radon gas, asbestos, heredity and air pollution.
Smokers who get lung cancer, have a mutation in the genes on chromosome 15.