Green Tea Reduces Pneumonia Risk

Green Tea Reduces Pneumonia Risk by Phillip Hogan

A Japanese study, reported in the American Journal of Clinical Nutrition examined the association between the consumption of Green Tea and death in humans. The study came about as previous experimental and animal studies have shown a link between the activities of catechins, one of the main compounds in Green Tea, against infectious agents but research into the effects on humans has been limited.

The study was conducted on 19,079 men and 21,493 women aged between 40 - 70 years old, all participants being National Health Insurance beneficiaries in Japan. Participants with a reported history of cancer, myocardial infarction or a stroke were excluded from the study as well as participants that had missing data on the frequency of Green Tea consumption.

Cox's proportional hazards regression analysis, a statistical survival model in which the affect of a treatment under study has a measurable result on the participants' survival rate, was used to calculate hazard ratios (HRs) and the possible risk of death from pneumonia against Green Tea consumption.

Over a twelve year follow up, results showed 406 recorded deaths resulting from pneumonia within the studies participants. Of the original cohort of participants, 6,033 were lost during the follow up process.

No significant association was seen in the men within the study but definite results were seen in the woman. After taking into account age, physical fitness and other health and dietary contributing factors a positive association between Green Tea consumption and reduced risk of pneumonia in women was identified.

According to the results, drinking just one cup of Green Tea a day reduced the risk of pneumonia in the Japanese woman, which dropped by 41% - reduced risk increased with the consumption of Green Tea.

The results seemed to suggest that compounds contained within Green Tea have the capability of countering viruses, but that further study is required in order to determine the exact compound at work.

The study concluded by drawing a definite association between Green Tea and reduced risk of pneumonia in Japanese women, although no affect was seen in the men in the experiment.

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