Analysis of related metabolic indexes of non-alcoholic fatty liver disease in the elderly popluation of public institutions in Nanjing
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摘要:
目的 调查2016年南京地区事业单位老年体检人群非酒精性脂肪肝(NAFLD)患病率,并分析NAFLD与三酰甘油葡萄糖乘积指数(TyG指数)等代谢指标的相关性。 方法 选择2016年1月—2017年1月于南京大学医学院附属鼓楼医院体检中心进行健康体检的南京市事业单位老年受检者为研究对象。分析其人口学特征、生化及B超检查结果,计算体重指数(BMI)及TyG指数,分析TyG指数与代谢指标的相关性,采用logistic回归分析研究NAFLD的独立影响因素,采用ROC曲线评价不同指标对NAFLD的预测价值。 结果 2712例老年体检者NAFLD的患病率为24.52%,男性NAFLD患病率显著高于女性(25.86% vs. 17.78%),差异有统计学意义(χ2=13.254,P < 0.05)。Logistic回归分析显示BMI、DBP、FPG、HbA1c、TC、TG、LDL-C、HDL-C、TyG指数、UA为NAFLD的独立影响因素。老年体检者TyG指数与BMI、SBP、DBP、FPG、HbA1c、TC、TG、LDL-C、UA呈正相关(r=0.324、0.139、0.110、0.484、0.414、0.246、0.846、0.172、0.172,均P<0.05),与HDL-C水平呈负相关(r=-0.443,P<0.05)。BMI、DBP、UA及TyG指数预测NAFLD的ROC曲线下面积分别为0.71、0.60、0.60、0.74。 结论 南京市事业单位老年体检人群NAFLD患病率高。BMI、DBP、FPG、HbA1c、TC、TG、LDL-C、HDL-C、TyG指数、UA是NAFLD的独立影响因素,TyG指数是评估IR的简易合成型指标,在预测NAFLD方面具有良好价值。 -
关键词:
- 非酒精性脂肪肝 /
- 三酰甘油葡萄糖乘积指数 /
- 老年 /
- 体检 /
- 代谢因素
Abstract:Objective To investigate the prevalence of non-alcoholic fatty liver disease (NAFLD) in the elderly physical examination population in institutions in Nanjing in 2016 and to analyse the correlation between NAFLD and metabolic indicators, such as triglyceride glucose product index (TyG index). Methods Elderly subjects who were admitted to Nanjing Public Institutions from January 2016 to January 2017 and underwent physical examination in the physical examination center of Nanjing Drum Tower Hospital were included in the study. Demographic characteristics, biochemical tests, b-ultrasound examination results, calculate body mass index (BMI) and TyG index were analysed. Differences in metabolism-related indicators between the NAFLD and non-NAFLD groups were determined, and the correlation between TyG and metabolic indexes was analysed. Logistic analysis was used in analysing the independent influencing factors of NAFLD, and ROC was used in evaluating the predictive values of different indicators for NAFLD. Results The prevalence rate of NAFLD in 2 712 elderly patients who underwent physical examination was 24.52%, and the prevalence rate of NAFLD in males was significantly higher than that in females (25.86% vs. 17.78%; χ2=13.254, all P < 0.05). Logistic regression analysis showed that BMI, DBP, FPG, HbA1c, TC, TG, LDL-C, HDL-C, TyG index, UA were independent influencing factors for NAFLD. Correlation analysis results showed that TyG index level in elderly physical examination subjects was significantly positively correlated with BMI, SBP, DBP, FPG, HbA1c, TC, TG, LDL-C and uric acid (r=0.324, 0.139, 0.110, 0.484, 0.414, 0.246, 0.846, 0.172, 0.172; all P < 0.05) and significantly negatively correlated with HDL-C level (r=-0.44, P < 0.05). The area under the curve (AUC) values predicted using BMI, DBP, UA and TyG index were 0.71, 0.60, 0.60 and 0.74, respectively. Conclusion NAFLD had a high prevalence rate in elderly people who underwent physical examination in public institutions in Nanjing. BMI, DBP, FPG, HbA1c, TC, TG, LDL-C, HDL-C, TyG index, and UA were independent influencing factors for NAFLD, and the TyG index was a simple synthetic indicator for IR assessment and thus has a good predictive value for NAFLD. -
表 1 2组老年体检者生化等指标比较(x±s)
组别 例数 TC(mmol/L) TG(mmol/L) LDL-C(mmol/L) HDL-C(mmol/L) UA(μmol/L) TyG 非NAFLD组 2 047 4.85±0.98 1.42±0.81 2.74±0.79 1.32±0.34 346.81±81.00 8.64±0.52 NAFLD组 665 5.02±0.97 2.09±1.24 2.87±0.79 1.16±0.26 374.09±81.44 9.11±0.56 t值 3.813 16.280 3.775 11.496 7.536 19.703 P值 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 组别 例数 TC(mmol/L) TG(mmol/L) LDL-C(mmol/L) HDL-C(mmol/L) UA(μmol/L) TyG 非NAFLD组 2 047 4.85±0.98 1.42±0.81 2.74±0.79 1.32±0.34 346.81±81.00 8.64±0.52 NAFLD组 665 5.02±0.97 2.09±1.24 2.87±0.79 1.16±0.26 374.09±81.44 9.11±0.56 t值 3.813 16.280 3.775 11.496 7.536 19.703 P值 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 注:1 mm Hg=0.133 kPa。 表 2 老年体检者NAFLD患病相关因素的logistic回归分析
项目 B SE Wald χ2 P值 OR(95% CI) BMI 0.220 0.021 109.852 < 0.001 1.246(1.196~1.298) DBP 0.237 0.094 6.320 0.012 1.268(1.054~1.525) FPG 0.112 0.047 5.645 0.018 1.119(1.020~1.227) HbA1c 0.209 0.040 26.688 0.000 1.232(1.138~1.333) TC 0.543 0.054 99.544 < 0.001 1.721(1.547~1.914) TG 0.081 0.052 2.447 0.038 1.085(0.980~1.201) LDL-C 0.333 0.059 31.820 < 0.001 1.395(1.243~1.566) HDL-C -2.021 0.176 132.575 < 0.001 0.133(0.094~0.187) TyG 3.879 0.571 46.170 < 0.001 48.370(15.800~148.078) UA 0.002 0.001 10.661 0.001 1.002(1.001~1.004) 常量 -10.144 0.833 148.167 < 0.001 0.000 表 3 老年体检者TyG指数水平与其他代谢相关指标的相关性分析
项目 BMI SBP DBP FPG HbA1c Cr TC TG LDL-C HDL-C UA r值 0.324 0.139 0.110 0.484 0.414 0.030 0.246 0.846 0.172 -0.443 0.172 P值 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 0.115 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 -
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