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作者在华盛顿和犹他州用病例——对照研究方法来探讨肥胖是否与卵巢上皮癌危险性的变化有联系,每个妇女凯特累标准的计算方法是用30岁时体重(kg)除以身高(m)的平方,将所有研究对象分成5个组,其组距基本相等。最高凯特累标准组妇女与最低组比较相对危险性是1.7,95%的可信区间为1.1~2.7,3个中等凯特累标准组的危险
In Washington and Utah, the authors used a case-control study to investigate whether obesity is associated with a change in the risk of epithelial ovarian cancer. The Kate rating for each woman is calculated by dividing body weight (kg) at age 30 with height m) squared, all subjects were divided into five groups, their group spacing is basically equal. The relative risk for women in the highest Kettler standard group compared to the lowest was 1.7, the 95% confidence interval was 1.1 to 2.7, and the risk for the 3 moderate Kettle-standard group