摘要
目的探究甘油三酯-葡萄糖指数(TyG)与非肥胖型非酒精性脂肪性肝病(NAFLD)的相关性及诊断预测价值。方法收集2020年5月~2023年12月于我院健康体检体质量指数(BMI)<25 kg/m^(2)的非肥胖者,根据上腹部彩超结果分为健康对照组与NAFLD组。采用限制性立方样条(RCS)探索TyG与非肥胖型NAFLD之间非线性关系,采用LASSO回归进行变量筛选,多因素Logistic回归探究TyG与非肥胖型NAFLD风险之间相关性。受试者工作特征(ROC)曲线评估TyG对非肥胖型NAFLD的诊断预测价值,并进行敏感性分析。结果最终纳入3723例非肥胖型体检者,其中NAFLD患者432例,患病率为11.6%。与健康对照组相比,非肥胖型NAFLD患者中收缩压、舒张压、总胆固醇、甘油三酯、LDL-C、血尿酸、空腹血糖与TyG指数升高,HDLC降低,差异均具有统计学意义(P<0.05)。多因素Logistic回归结果显示,在充分校正混杂因素后,TyG每增加1个单位,非肥胖型NAFLD风险增加约2.22倍(OR=3.22,95%CI:2.53-4.12,P<0.001)。与最低四分位Q1组相比,TyG指数Q2、Q3、Q4组的NAFLD患病风险将分别增加1.52倍(OR=2.52,95%CI:1.20-5.95)、3.56倍(OR=4.56,95%CI:2.28-10.46)与8.66倍(OR=9.66,95%CI:4.83-22.18)。RCS曲线显示TyG指数与非肥胖型NAFLD风险显著相关,两者间呈近似线性关系(非线性检验P=0.019)。ROC曲线下面积为0.819,敏感性为78.0%,特异性为71.2%,具有较好的预测诊断价值。结论TyG指数与非肥胖型NAFLD发生风险显著相关,可作为健康体检人群中脂肪肝早期筛查指标。
Objective To investigate the association of triglyceride-glucose index(TyG)with non-alcoholic fatty liver disease(NAFLD)and its diagnostic value for NAFLD in non-obese individuals.Methods We retrospectively collected the data of nonobese individuals(BMI<25 kg/m^(2))undergoing routine health examination at Second Affiliated Hospital of Xi'an Jiaotong University between May,2020 and December,2023,who all received abdominal ultrasound examination for NAFLD screening.The nonlinear relationship between TyG and non-obese NAFLD was explored using restricted cubic splines(RCS),and LASSO regression was used for variable screening;the correlation between TyG and NAFLD risk was analyzed using multivariate logistic regression.The diagnostic value of TyG for non-obese NAFLD was assessed using receiver-operating characteristic(ROC)curves and sensitivity analysis.Results A total of 3723 non-obese subjects were enrolled in this study,including 432(11.6%)patients with NAFLD.Compared with the healthy individuals,the patients with NAFLD had significant elevations of systolic and diastolic blood pressures,total cholesterol,triglycerides,LDL-C,blood uric acid,fasting blood glucose,and TyG index and a decreased HDL-C level(P<0.05).Multivariate logistic regression revealed that for each one-unit increase of TyG,the risk of non-obese NAFLD increased by 2.2 folds(OR=3.22,95%CI:2.53-4.12,P<0.001).Compared with a TyG index in the lowest quartile Q1,a TyG index in the Q2,Q3 and Q4 quartiles was associated with an increased risk of NAFLD by 1.52 folds(OR=2.52,95%CI:1.20-5.95),3.56 folds(OR=4.56,95%CI:2.28-10.46),and 8.66-folds(OR=9.66,95%CI:4.83-22.18),respectively.The RCS curve demonstrated a significant linear correlation between TyG index and non-obese NALFD risk(P for nonlinear=0.019).For diagnosing non-obese NALFD,TyG index had an area under ROC curve of 0.819 with a sensitivity of 78.0% and a specificity of 71.2%.Conclusion An increase of TyG index is correlated with increased risks of NAFLD in non-obese individuals and can serve as an indicator for screening early NAFLD in healthy individuals.
作者
肖静
李盈
方敏
巩红
李文
张春艳
陈方尧
张岩
韩拓
XIAO Jing;LI Ying;FANG Min;GONG Hong;LI Wen;ZHANG Chunyan;CHEN Fangyao;ZHANG Yan;HAN Tuo(Department of Cardiovascular Medicine,Second Affiliated Hospital of Xi'an Jiaotong University,Xi'an 710004,China;Department of Health Management,Second Affiliated Hospital of Xi'an Jiaotong University,Xi'an 710004,China;Shaanxi Nuclear Industry 215th Hospital,Xianyang 712000,China;Department of Epidemiology and Health Statistics,School of Public Health,Xi'an Jiaotong University Health Science Center,Xi'an 710061,China)
出处
《南方医科大学学报》
CAS
CSCD
北大核心
2024年第7期1266-1271,共6页
Journal of Southern Medical University
基金
国家自然科学基金青年项目(82100359)
陕西省自然科学基金一般项目(2020JQ-552,2023-JC-YB-709)。
关键词
非肥胖型脂肪肝
甘油三酯-葡萄糖指数
血脂异常
胰岛素抵抗
non-obese non-alcoholic fatty liver disease
triglyceride-glucose index
dyslipidemia
insulin resistance
作者简介
共同第一作者:肖静,在读硕士研究生,E-mail:xjdyx@stu.xjtu.edu.cn;共同第一作者:李盈,在读博士研究生,E-mail:liying2021a@163.com;通信作者:韩拓,博士,助理研究员,E-mail:heart0228@xjtu.edu.cn;通信作者:张岩,博士,副主任医师,E-mail:zy1985525@126.com。
