目的筛查中国女性乳腺癌发病相关危险因素,为个体化评估中国女性乳腺癌发病危险性提供依据。方法在全国8个省市14家研究中心开展1∶m配对病例对照研究,采用调查问卷通过面对面交流收集乳腺癌发病相关危险因素信息。乳腺癌患者及其配对健康对照女性年龄、生活环境相匹配。应用1∶m条件Logistic回归分析乳腺癌相关危险因素在病例组和对照组间的分布特点,明确其与乳腺癌发病危险性的相关性。结果共纳入416例乳腺癌患者及1156例健康对照女性。中国女性乳腺癌发病相关危险因素包括体重指数（body mass index,BMI）≥24（OR=4.07,95%CI：2.98~5.55）,乳腺良性病变活检史（OR=1.68,95%CI：1.19~2.38）,初潮年龄≥14岁（OR=1.41,95%CI：1.07~1.87）,生存压力大（1~4级,OR=2.15,95%CI：1.26~3.66;5~9级,OR=3.48,95%CI：2.03~5.95）,绝经（OR=2.22,95%CI：1.50~3.28）（P〈0.05）,乳腺癌家族史（OR=1.72,95%CI：1.15~2.58）,肿瘤家族史（乳腺癌除外）（OR=1.55,95%CI：1.22~1.98）。口服避孕药（OR=1.59,95%CI：0.83~3.05）亦增加乳腺癌发病危险性,但差异未达到显著统计学意义（P〉0.05）。结论中国女性乳腺癌发病相关危险因素包括BMI≥24、乳腺良性病变活检史、初潮年龄≥14岁、生存压力大、绝经、乳腺癌家族史及其他肿瘤家族史。本研究为个体化评估中国女性罹患乳腺癌危险性及广泛开展乳腺癌防治工作提供了依据。
The current epidemic of Zika virus (ZIKV) in the Americas is particularly alarming given its confirmed neuropathological associations,such as fetal microcephaly and Guillain-Barre *** most of the involved ZIKV strains...
The current epidemic of Zika virus (ZIKV) in the Americas is particularly alarming given its confirmed neuropathological associations,such as fetal microcephaly and Guillain-Barre *** most of the involved ZIKV strains share over 99.5% genome sequence identity,the microevolutionary relationships between these strains are difficult to uncover[1].Here,we undertook an alternative strategy to track the evolution of ZIKV through comprehensive analysis of all SNPs between the 48 currently identified human strains,which can be used as "molecular footprints"[2].
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