New study links teen obesity to endometrial cancer among women not using hormone therapy

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obesity weightloss concept_oncology news australiaWhile it is well established that obesity is closely linked to endometrial cancer risk, most past findings have only looked at risk in relation to one measure of body size at a time.

In this study led by the Cancer Prevention Institute of California, e-published in the journal Cancer Causes and Control, researchers evaluated changes in obesity, beginning at adolescence, to identify lifetime risk factors that may lead to endometrial cancer.

Researchers found that adolescent obesity contributed to endometrial cancer risk, even among women who were at a normal weight as adults. However, women who were obese over a prolonged period were at greatest risk.

Further, the taller the woman, the greater the risk associated with prolonged obesity.

These associations are limited to women who have not used any form of hormone therapy.

Among women using hormone therapy, only greater height was associated with risk.

To conduct this study, researchers evaluated 88,142 female participants in the California Teachers Study (CTS) followed for more than 15 years.

teenage obesity teenage girls diet exercise cancer risk_oncology news australiaParticipants completed a self-administered questionnaire addressing health and medical history, including hormone therapy and body size, at the time they began participation in the study group and repeated three more surveys through 2006.

Only women who had not had an endometrial cancer prior to joining the study were included in this analysis.

Of the study participants, 887 were diagnosed with invasive type I endometrial cancer between 1997 and 2012.

According to Pamela Horn-Ross, the lead researcher of this study and consulting epidemiologist with the Cancer Prevention Institute of California, “The results of this study have important implications for the future risk of endometrial cancer among girls given the widespread epidemic of obesity in our society. It will also help researchers understand discrepancies between previous studies and aid in developing targeted inventions for the prevention of endometrial cancer.”
[hr] SourceCancer Causes and Control


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