|
型糖尿病的家庭聚集性研究 |
|
沈洪兵 俞顺章 徐耀初 喻荣彬 沈靖 周玲 钮菊英
【摘要】 目的 通过对Ⅱ型糖尿病家庭聚集性的分析,探讨遗传因素在糖尿病患者一级亲属成员发病中所起的作用及其相对危险度。方法 采用以人群为基础的遗传流行病学病例对照研究方法,对363例Ⅱ型糖尿病先证者家系及291例人群对照家系进行了调查。结果 先证者家系一级亲属糖尿病的患病率为3.94%,对照组一级亲属为1.09%,相对危险度为3.62,各组血缘亲属的相对危险度均在3.0以上;糖尿病先证者诊断时年龄越轻,其一级亲属的糖尿病患病率和相对危险度越高,其家系内发生多例糖尿病病例的可能性越大。 结论 Ⅱ型糖尿病具有明显的家庭聚集倾向,其一级亲属对糖尿病的遗传易感性较高,是糖尿病预防和控制的重点人群。 【关键词】 糖尿病,非胰岛素依赖型 流行病学 危险因素
A Study on Family Aggregation of Type 2 Diabetes Mellitus
SHEN Hongbing*, YU Shunzhang, XU Yaochu, et al.
*Department of Epidemiology, Nanjing Medical University, Nanjing 210029
【Abstract】 Objective To estimate the genetic susceptibility and its relative risk (RR) in the first degree relatives of type 2 diabetes mellitus (DM) through family aggregation analysis. Methods A population-based case-control study including 654 pedigrees (363 index cases and 291 controls) was carried out. Results The prevalence rate in the first degree relatives of DM probands was 3.94%, significantly higher than that in the controls (1.09%), with a relative risk of 3.62 (χ2=36.5, P<0.001). The RRs in different consanguineal relatives were all higher than 3.0. The younger was the probands at diagnosis for DM, the higher its prevalence rates and RRs among their relatives was and the more likelihood that more than one case of DM occurred in them. Conclusion Significant family aggregation and higher genetic susceptibility were found in the first degree relatives of DM, on whom prevention and treatment for DM should be focused. 【Key words】 Diabetes mellitus, non-insulin-dependent Epidemiology Risk factors
Ⅱ型糖尿病血缘亲属中发生2例及2例以上病例的核心家系并不少见,提示Ⅱ型糖尿病发生中遗传因素起着一定的作用[1-4],但有关遗传因素在Ⅱ型糖尿病发生发展中所起作用的程度及其相对危险度的大小,尚无定量的分析。为此,我们进行了以人群为基础的Ⅱ型糖尿病遗传流行病学研究。
对象与方法
1.先证者及人群对照的选择:Ⅱ型糖尿病先证者为在1997年江苏省自然人群糖尿病流行病学调查中经医院确诊(WHO标准)的Ⅱ型糖尿病病例[5],共登记425例,实访363个家系,应答率85.4%。以年龄(±3岁)、地区和性别频数匹配抽取1997年全省流行病学调查中的非糖尿病病例为人群对照,共抽得355 例,实访29[1] [2] 下一页 上一个医学论文: 北京市41 47岁人群出生时发育指标与成年期糖耐量减低的关系 下一个医学论文: 急性肺损伤大鼠多核白细胞与肺组织 受体变化的相关性研究
|
|
|
|
|
|
|