2型非增殖性糖尿病视网膜病变的影响因素分析

2016-07-11 20:29:02李秀伦龙文莉
中国当代医药 2016年9期
关键词:因素糖尿病分析

李秀伦+龙文莉

[摘要] 目的 探讨2型非增殖性糖尿病视网膜病变(NPDR)的相关影响因素。 方法 选取本院2010年1月~2014年4月就诊的176例2型NPDR患者作为NPDR组,选取同期就诊的176例非糖尿病视网膜病变(NDR)患者作为NDR组,比较两组的相关指标,采用Logistic回归模型明确NPDR的独立危险因素,并利用分类回归树(CART)进一步探讨独立危险因素在NPDR早期诊断中的价值。 结果 两组的病程、BMI和Lp(a)水平比较,差异有统计学意义(P<0.05)。Logistic回归分析显示,Lp(a)升高是2型NPDR发生的独立相关因子。ROC曲线显示,Lp(a)判别2型NPDR发生的最佳界点为352.36 mg/L,此时判别2型NPDR的灵敏度和特异度分别为85.79%和98.67%。CART模型预测分析结果显示,Lp(a)作为2型NPDR发生强有力的预测因子,当Lp(a)>353 mg/L时,2型糖尿病患者发生NPDR的概率为100%;当Lp(a)≤353 mg/L时,2型糖尿病患者发生NPDR的概率仅为2.5%。 结论 2型糖尿病患者病程、BMI及Lp(a)是NPDR的相关独立危险因素,通过检测以上指标对评价高危人群有一定的应用价值。

[关键词] 2型糖尿病;非增殖性视网膜病变;体重指数;脂蛋白(a)

[中图分类号] R774.1 [文献标识码] A [文章编号] 1674-4721(2016)03(c)-0012-04

[Abstract] Objective To explore the related influence factor of type 2 non-proliferative diabetic retinopathy (NPDR). Methods 176 cases of type 2 diabetes with NPDR from January 2010 to April 2014 in our hospital were selected as the NPDR group,176 cases of non-diabetic retinopathy (NDR) in the same period were selected as the NDR group,The related clinical index between two groups was compared.The independent risk factor of NPDR were defined by using Logistic model,classification and regression tree (CART) was used to further explore the value of independent risk factor in the early diagnosis of NPDR. Results There was significant difference in the course of disease,BMI and Lp (a) between the NPDR group and the NDR group (P<0.05).Logistic regression analysis showed that the increased Lp (a) had obvious relationship with NPDR.ROC curves showed that the best cutoff point of the occurrence of type 2 NPDR of Lp (a) identifying was 352.36 mg/L,the sensitivity and specificity of the discriminant 2 NPDR at this time was 85.79% and 98.67% respectively.CART model predictive analysis results showed,as the strong predictor for the occurrence of type 2 NPDR,when the level of Lp (a) was more than 353 mg/L,the incidence rate of type 2 diabetes with NPDR was 100%,but when the level of Lp (a) was less than or equal to 353 mg/L,the incidence rate of diabetes with type 2 NPDR was 2.5%. Conclusion Disease course,BMI and Lp (a) of type 2 diabetes are the independent risk factors of NPDR.By testing the above indicators for evaluation high-risk groups have certain application value.

[Key words] Type 2 diabetes;Non-proliferative diabetic retinopathy;Body mass index;Lipoprotein (a)

糖尿病视网膜病变(diabetic retinopathy,DR)是糖尿病最为常见和最具破坏性的微血管并发症,已成为我国和全世界范围内致盲的主要原因之一[1-2]。DR早期阶段被命名为非增殖性糖尿病视网膜病变(non-proliferative diabetic retinopathy,NPDR),同时NPDR也根据其疾病发展和严重程度被分为轻、中、重三个阶段。对于NPDR发病的相关危险因素的研究和干预是早期DR针对性预防的有力措施[3-4]。既往研究显示[5],NPDR的发病原因主要与血糖控制程度,血压及血脂、血清糖基化终末产物含量等指标相关,而体重指数(body mass index,BMI)的增加也可导致NPDR病情进一步加重[6]。本研究通过比较2型NPDR和非糖尿病视网膜病变(non-diabetic retinopathy,NDR)患者之间的临床相关因素,对2型NPDR的危险因素进行早期预防。

1 资料与方法

1.1 一般资料

根据1999年WHO糖尿病诊断及分型标准,选择2010年1月~2014年4月在峨眉山市人民医院内分泌科和眼科就诊的176例2型NPDR患者作为NPDR组,其中男67例(38.1%),女109例(61.9%);……

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