医学阅读软件:医学补充阅读：BellyFatDoubles

tuesday, feb. 14 (healthday news) —— women who put on a lot of weight around their waist are at nearly twice the risk of developing gallstones big enough to require surgical removal, researchers report.

　　most gallstones are nuggets of built-up cholesterol. in affluent countries like the united states, gallstones remain the most common abdominal illness. in fact, americans undergo more than 800,000 gallstone operations each year.

　　in a study led by dr. chung-jyi tsai, of the division of digestive diseases and nutrition at the university of kentucky medical center, lexington, researchers collected data on more than 42,000 women participating in the nurses' health study.

　　the women in the study were 39 to 66 years of age in 1986, when the gallstone study began. at that time, none of them had had gallstones. as part of the study, the women provided waist and hip measurements and details of their normal diet.

　　reporting in the feb. 13 online issue of gut, the researchers found that nearly 3,200 of the women needed to undergo gallstone surgery by the year 2000.

　　compared to women with waistlines at or under 26 inches, women with waistlines of 36 inches or more faced double the risk of developing gallstones requiring surgical removal, the researchers found.

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