The relationship between estimated glomerular filtration rate trajectory and all-cause mortality in type 2 diabetes: the Fremantle Diabetes Study

被引:22
作者
Davis, Timothy M. E. [1 ]
Chubb, S. A. Paul [1 ,2 ,3 ]
Davis, Wendy A. [1 ]
机构
[1] Univ Western Australia, Sch Med & Pharmacol, Fremantle, WA, Australia
[2] PathWest Lab Med WA, Dept Clin Biochem, Perth, WA, Australia
[3] Univ Western Australia, Sch Pathol & Lab Med, Nedlands, WA, Australia
基金
英国医学研究理事会;
关键词
CHRONIC KIDNEY-DISEASE; STAGE RENAL-DISEASE; METHYLENETETRAHYDROFOLATE REDUCTASE; GENE POLYMORPHISM; GFR DECLINE; HYPERFILTRATION; INDIVIDUALS; NEPHROPATHY; COMMUNITY; ALBUMINURIA;
D O I
10.1530/EJE-16-0327
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective: To investigate the association between estimated GFR (eGFR) and all-cause mortality, including the contribution of temporal eGFR changes, in well-characterised community-based patients with type 2 diabetes. Design: Longitudinal observational study. Methods: Participants from the Fremantle Diabetes Study Phase 1 were assessed between 1993 and 1996 and followed until end-December 2012. Cox proportional hazards modelling was used to assess the relationship between baseline eGFR category (Stage 1-5) and all-cause death, and between eGFR trajectories assigned by semiparametric group-based modelling (GBM) and all-cause death in patients with five post-baseline annual eGFR measurements. Results: In the full cohort (1296 patients; mean +/- S.D. age 64.1 +/- 11.3 years, 48.6% males), 738 (56.9%) died during 12.9 +/- 6.1 years of follow-up. There was a U-shaped relationship between all-cause death and eGFR category. With Stage 3 (45-59 mL/min/1.73 m(2)) as reference, the strongest association was for eGFR >= 90 mL/min/1.73 m(2) (hazard ratio (95% CI) 2.01 (1.52-2.66); P < 0.001). GBM identified four linear trajectories ('low', 'medium', 'high', 'high/declining') in 532 patients with serial eGFR measurements. With medium trajectory as reference, eGFR trajectory displaced baseline eGFR category as an independent predictor of death, with low and high/declining trajectories associated with more than double the risk (2.03 (1.30-3.18) and 2.24 (1.31-3.83) respectively, P <= 0.003) and associated median reductions in survival of 6.5 and 8.7 years respectively. Conclusion: There is a nonlinear relationship between eGFR and death in type 2 diabetes, which is at least partially explained by a sub-group of patients with an initially high but then rapidly declining eGFR.
引用
收藏
页码:273 / 285
页数:13
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