中国全科医学 ›› 2022, Vol. 25 ›› Issue (20): 2443-2449.DOI: 10.12114/j.issn.1007-9572.2022.0181

所属专题: 内分泌代谢性疾病最新文章合集 老年人群健康最新文章合集 老年问题最新文章合集

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中老年非糖尿病人群中预估人体脂肪质量及比例与胰岛素抵抗的关系研究

阮海燕1,2, 李丽英1, 郑翼1, 陈晓平1, 何森1,*()   

  1. 1610041 四川省成都市,四川大学华西医院心内科
    2610200 四川省成都市双流区中医医院心内科
  • 收稿日期:2022-01-09 修回日期:2022-04-12 出版日期:2022-07-15 发布日期:2022-04-28
  • 通讯作者: 何森
  • 阮海燕,李丽英,郑翼,等.中老年非糖尿病人群中预估人体脂肪质量及比例与胰岛素抵抗的关系研究[J].中国全科医学,2022,25(20):2443-2449. [www.chinagp.net]
    作者贡献:阮海燕负责数据清洗和统计学分析、绘制图表及论文起草;李丽英、郑翼负责试验调查对象的选取、样本的采集、指标化验与检测等核查;陈晓平提出研究思路,设计研究方案,提出研究命题;何森参与并负责研究所有过程,负责论文最终版本修订,对论文负责。
  • 基金资助:
    四川省科技计划项目(2022YFS0186); 国家自然科学基金资助项目(81600299)

Associations of Predicted Body Fat Mass and Fat Percentage with Insulin Resistance among a Middle-aged and Elderly Non-diabetic Population

Haiyan RUAN1,2, Liying LI1, Yi ZHENG1, Xiaoping CHEN1, Sen HE1,*()   

  1. 1Department of Cardiology, West China Hospital of Sichuan University, Chengdu 610041, China
    2Department of Cardiology, Shuangliu District Hospital of Chinese Medicine, Chengdu 610200, China
  • Received:2022-01-09 Revised:2022-04-12 Published:2022-07-15 Online:2022-04-28
  • Contact: Sen HE
  • About author:
    RUAN H Y, LI L Y, ZHENG Y, et al. Associations of predicted body fat mass and fat percentage with insulin resistance among a middle-aged and elderly non-diabetic population[J]. Chinese General Practice, 2022, 25 (20) : 2443-2449.

摘要: 背景 胰岛素抵抗(IR)是代谢综合征、2型糖尿病、高血压、动脉粥样硬化等多种疾病的共同病理基础,因此识别IR具有重要的临床价值。既往研究提示人体脂肪的过度增加与IR密切相关。临床实践中,测定人体脂肪的金标准通常采用双能X线吸收测量法,但其经济卫生学成本较高。 目的 探讨在成都地区中老年非糖尿病自然人群中预估人体脂肪质量(pFM)及预估人体脂肪比例(pFP)与IR的关系。 方法 于2007年5月,在四川省成都市成华区采用随机整群抽样方法抽取中老年自然人群共711例,排除已诊断为糖尿病者141例,最终纳入570例非糖尿病人群。由经培训的医务人员对抽样的人群进行调查研究,调查内容主要包括标准化的问卷调查、体格检查和实验室检查,并计算稳态模型评估的胰岛素抵抗指数(HOMA-IR)、pFM和pFP。 结果 570例研究对象中,HOMA-IR 0.01~5.50,中位HOMA-IR 1.05(0.72,1.53);pFM 2.34~41.41 kg,平均pFM(18.59±6.47)kg;pFP 13.95%~48.46%,中位pFP 28.97(23.77,37.39)%;共115例(20.17%)研究对象发生IR。随着pFM、pFM的增加,HOMA-IR和IR患病率均逐渐增加(P<0.001)。多因素Logistic回归分析结果显示,pFM〔OR=3.22,95%CI(2.45,4.33)〕、pFP〔OR=3.51,95%CI(2.61,4.84)〕是非糖尿病人群发生IR的影响因素(P<0.05)。分别绘制pFM及pFP预测非糖尿病人群发生IR的受试者工作特征(ROC)曲线,结果显示,ROC曲线下面积(AUC)分别为0.777〔95%CI(0.733,0.822)〕、0.719〔95%CI(0.668,0.769)〕,截断值分别为38.10 kg、17.74%。其他常用人体测量学指标腰围、体质指数(BMI)、腰高比(WHtR)、身体形态指数(ABSI)预测非糖尿病人群发生IR的ROC曲线,结果显示,AUC分别为0.749〔95%CI(0.700,0.798)〕、0.753〔95%CI(0.706,0.801)〕、0.768〔95%CI(0.722,0.815)〕及0.618〔95%CI(0.561,0.675)〕。pFM、pFP的AUC均大于ABSI(Z=4.452,P<0.001;Z=2.486,P=0.013)。 结论 在成都地区中老年非糖尿病人群中,pFM及pFP与IR独立相关,并可较好地识别IR,但pFM、pFP对IR的识别能力并不优于传统人体测量指标。

关键词: 胰岛素抵抗, 人体脂肪质量, 人体脂肪质量比例, 中老年人

Abstract:

Background

Identifying insulin resistance (IR) is of important clinical value as it is a pathological basis of multiple diseases, such as metabolic syndrome, type 2 diabetes, hypertension, and atherosclerosis. Numerous previous studies have suggested that excessive gain of fat is closely associated with IR. Dual-energy X-ray absorptiometry is often clinically used as the golden standard for measuring human body fat, but its health economic cost is high.

Objective

To assess the associations of predicted fat mass (pFM) and predicted fat percent (pFP) with IR in a middle-aged and elderly population without diabetes in Chengdu.

Methods

In May 2007, a cross-sectional survey was conducted by trained medical workers in Chenghua District, Chengdu, Sichuan. A total of 711 middle-aged and elderly individuals were selected as surveyees by random cluster sampling, and 570 of them were included for analysis after excluding 141 with diabetes. The survey includes filling in a standardized questionnaire, a physical examination, and a laboratory test. The homeostasis model assessment of IR (HOMA-IR) , pFM, and pFP were calculated.

Results

Among the 570 subjects, the range of HOMA-IR was from 0.01 to 5.50, with a median value of 1.05 (0.72, 1.53) ; the range of pFM was from 2.34 to 41.41 kg, with a value of mean (SD) of (18.59±6.47) kg; the range of pFP was from 13.95% to 48.46%, with a median value of 28.97 (23.77, 37.39) %. The prevalence of IR was 20.17% (115/570) . The results suggested the HOMA-IR value and IR prevalence increased with the increase of pFM and pFP (P<0.001) . Multivariate Logistic regression analysis indicated that both pFM〔OR=3.22, 95%CI (2.45, 4.33) 〕 and pFP〔OR=3.51, 95%CI (2.61, 4.84) 〕 were associated with IR (P<0.05) . For predicting IR, the area under the receiver operating characteristic curve (AUC) was 0.777〔95%CI (0.733, 0.822) 〕with 38.10 kg as the optimal cut-off value for pFM, and 0.719〔95%CI (0.668, 0.769) 〕with 17.74% as the optimal cut-off value for pFP, respectively. And the AUC for four common traditional anthropometric indicators, namely waist circumference, body mass index, waist-to-height ratio (WHtR) and a body shape index (ABSI) was 0.749〔95%CI (0.700, 0.798) 〕, 0.753〔95%CI (0.706, 0.801) 〕, 0.768〔95%CI (0.722, 0.815) 〕, and 0.618〔95%CI (0.561, 0.675) 〕, respectively. Especially, the AUC of pFM or pFP was greater than that of ABSI (Z=4.452, P<0.001; Z=2.486, P=0.013) .

Conclusion

In this middle-aged and elderly non-diabetic population of Chengdu, pFM and pFP were independently associated with IR, and also could well discriminate IR. But pFM and pFP was only superior to ABSI.

Key words: Insulin resistance, Predicted fat mass, Predicted fat percent, Middle-aged and aged people