Chinese General Practice ›› 2023, Vol. 26 ›› Issue (03): 304-307.DOI: 10.12114/j.issn.1007-9572.2022.0492

• Original Research • Previous Articles     Next Articles

Effect of Impaired Fasting Glucose on Estimated Glomerular Filtration Rate

  

  1. Health Management Center, the Second Affiliated Hospital of Nanchang University, Nanchang 330000, China
  • Received:2022-07-08 Revised:2022-09-20 Published:2023-01-20 Online:2022-09-28
  • Contact: LIU Linhua
  • About author:
    LIU L H, ZHAN J F, XIA Z B. Effect of impaired fasting glucose on estimated glomerular filtration rate [J] . Chinese General Practice, 2023, 26 (3) : 304-307.

社区人群空腹血糖受损对估算肾小球滤过率的影响研究

  

  1. 330000 江西省南昌市,南昌大学第二附属医院健康管理医学科
  • 通讯作者: 刘林华
  • 作者简介:
    刘林华,占锦峰,夏忠彬.社区人群空腹血糖受损对估算肾小球滤过率的影响研究[J].中国全科医学,2023,26(3):304-307.[www.chinagp.net] 作者贡献:刘林华负责试验设计并完成写作及修改,并对文章整体负责;夏忠彬负责数据统计;占锦峰负责数据采集。

Abstract:

Background

Estimated glomerular filtration rate (eGFR) is a quantitative indicator assessing the severity of chronic kidney disease. Studies have shown that elevated glucose in prediabetic period increases the risk of chronic kidney disease, but its direct effect on eGFR has been less reported.

Objective

To investigate the effect of fasting blood glucose level on eGFR in a community-dwelling population with impaired fasting glucose (IFG) .

Methods

Participants (n=28 601) were selected from a group of physical examinees from Physical Examination Center, the Second Affiliated Hospital of Nanchang University during January to December 2020 according to the inclusion criteria and exclusion criteria. Demographic and clinical data〔past medical history, sex, age, BMI, blood pressure, serum uric acid, lipids, and creatinine, fasting plasma glucose (FPG) , routine urine parameters〕were collected and compared between subjects with elevated FPG (5.6 mmol/L≤FPG<7.0 mmol/L) and those with normal FPG (3.9 mmol/L≤FPG<5.6 mmol/L) . The influence of FPG on eGFR was assessed by the Mann-Whitney U-test comparing multiple factors〔sex, age, mean arterial pressure (MAP) , serum uric acid, total cholesterol, BMI〕 between subjects with elevated and normal FPG after matching. The correlation between FPG and eGFR was assessed in subjects with elevated and normal FPG before and after matching.

Results

There were 25 539 individuals with normal FPG, and 3 062 with elevated FPG. There were significant difference in age, MAP, serum uric acid, total cholesterol, BMI and eGFR between the two groups (P<0.05) . Individuals with elevated FPG had higher eGFR than those with normal eGFR (P<0.05) after matching age, MAP, serum uric acid, total cholesterol, and BMI between the two groups (P<0.05) . Correlation analysis showed that FPG had a weak negative correlation with eGFR in all participants (rs=-0.047, P<0.05) , but had a weak positive correlation with eGFR in the matched population (rs=0.065, P<0.05) , and the correlation coefficient increased further in the matched individuals with elevated FPG (rs=0.127, P<0.05) .

Conclusion

IFG may be associated with elevated eGFR, which provides a possible basis for the glomerular hyperfiltration state that occurs with elevated glucose in prediabetes.

Key words: Community-dwelling population, Prediabetic State, Fasting plasma glucose, Estimation of glomerular filtration rate, Kidney diseases, Chronic kidney disease, Root cause analysis

摘要:

背景

估算肾小球滤过率(eGFR)是反映慢性肾脏病严重程度的量化指标之一。研究表明糖尿病前期血糖升高可增加慢性肾脏病风险,但对eGFR直接影响报道较少。

目的

探讨社区人群中空腹血糖(FPG)受损患者血糖水平对eGFR的影响。

方法

选择2020年1—12月于南昌大学第二附属医院体检中心体检的人群,收集一般资料与临床资料(包括既往史、性别、年龄、体质指数、血压、尿酸、血脂、FPG、尿常规、血肌酐),经相应纳入标准与排除标准筛选,最终纳入28 601例受试者。根据FPG水平将受试者分为FPG升高组(5.6 mmol/L≤FPG<7.0 mmol/L)、FPG正常组(3.9 mmol/L≤FPG<5.6 mmol/L),比较两组一般资料与临床资料。为明确FPG对eGFR影响,采用个案匹配控制对两组受试者进行多因素(性别、年龄、平均动脉压、尿酸、总胆固醇、体质指数)匹配,采用Mann-Whitney U秩和检验比较匹配后两组一般资料。采用Spearman秩相关检验分析FPG与eGFR在FPG升高组、FPG正常组及匹配后FPG升高组、FPG正常组间的相关性。

结果

共获得FPG正常组患者25 539例、FPG升高组患者3 062例。两组年龄、平均动脉压、尿酸、胆固醇、体质指数、eGFR比较,差异有统计学意义(P<0.05);经多因素匹配后,两组年龄、平均动脉压、尿酸、胆固醇、体质指数比较,差异无统计学意义(P>0.05),FPG升高组eGFR较FPG正常组更高(P<0.05)。相关性分析显示,全人群中FPG对eGFR呈负相关(rs=-0.047,P<0.05),匹配人群中FPG对eGFR影响呈正相关(rs=0.065,P<0.05),且匹配人群FPG升高亚组中相关系数进一步增加(rs=0.127,P<0.05)。

结论

FPG受损会引起eGFR升高,这为糖尿病前期血糖升高出现的肾小球高滤过状态提供可能的临床推断。

关键词: 社区人群, 糖尿病前期, 空腹血糖, 估算肾小球滤过率, 肾疾病, 慢性肾脏病, 影响因素分析