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publicado em 31/05/2013 às 17h34:00
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Smoking is directly responsible for two out of ten tumors

The number is the result of research conducted with 440 000 people for 14 years by the Catalan Institute of Oncology

 
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Foto: Marcos Santos/USP Imagens
Smoking causes 80% of lung tumors, and laryngeal
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Smoking causes 80% of lung tumors, and laryngeal

Smoking is directly responsible for two out of ten tumors, registered worldwide. The numbers are the result of study of the Catalan Institute of Oncology Hospital Duran i Reynals. The study followed nearly 440,000 people for 11 years.

Of the total members, 14 000 more dwe developed some type of cancer related to smoking.

The study, published in the Journal of Clinical Oncology, confirms that smoking causes 80% of tumors of the lung and larynx, as well as 20% to 50% of other tumors respiratory, digestive and urinary tract.

Research shows that a percentage of these tumors is the direct responsibility of tobacco, which also causes 25% of liver tumors, 14% of ovarian and 8% of the kidneys.

The scientists compared the number of cases of tumors among smokers, former smokers and those who had never smoked. The study reveals that 36% of tumors related to tobacco use are directly caused by its consumption, which represents 20% of the total.

With information from Lusa

Source: Isaude.net
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