Combined changes in albuminuria and kidney function and subsequent risk for kidney failure in type 2 diabetes

Combined changes in albuminuria and kidney function and subsequent risk for kidney failure in type 2 diabetes

Introduction Changes in albuminuria or estimated glomerular filtration rate (eGFR) can be used as a surrogate endpoint of end-stage kidney disease (ESKD) in people with type 2 diabetes. We investigated whether the combined changes in albuminuria and eGFR are more strongly associated with future risk...

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Main Authors: Toshiharu Ninomiya, Hiroki Yokoyama, Shin-ichi Araki, Hirofumi Makino, Kunitoshi Iseki, Kengo Furuichi, Megumi Oshima, Tadashi Toyama, Takashi Wada, Miho Shimizu, Hiroyuki Nakamura, Norihiko Sakai, Yasunori Iwata, Shinji Kitajima, Akinori Hara, Yoshiki Suzuki, Hiroaki Satoh, Tetsuya Babazono, Tatsumi Moriya, Masayuki Iwano, Masakazu Haneda, Shigeko Hara, Eiji Kusano
Format: Article
Language:English
Published: BMJ Publishing Group 2021-03-01
Series:BMJ Open Diabetes Research & Care
Online Access:https://drc.bmj.com/content/9/1/e002311.full
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Summary:Introduction Changes in albuminuria or estimated glomerular filtration rate (eGFR) can be used as a surrogate endpoint of end-stage kidney disease (ESKD) in people with type 2 diabetes. We investigated whether the combined changes in albuminuria and eGFR are more strongly associated with future risk of ESKD.Research design and methods Using data from a multicenter observational cohort study of people with type 2 diabetes, we evaluated the association of percentage change in urine albumin to creatinine ratio (UACR) and/or annual change in eGFR over 2 years with subsequent ESKD risk.Results Among 1417 patients with repeated albuminuria and eGFR over 2 years, 129 (9.1%) developed ESKD. Patients with >30% UACR decline had lower ESKD risk (HR 0.47; 95% CI 0.29 to 0.77), whereas those with >30% UACR increase had higher ESKD risk (HR 2.31; 95% CI 1.52 to 3.51), compared with those with minor UACR change. Patients with greater eGFR decline had an increased ESKD risk than those with minor eGFR change (a decline of <2.5 mL/min/1.73 m2/year): HR 4.19 (95% CI 1.87 to 9.38) and 2.89 (95% CI 1.32 to 6.33) for those with a decline of >5 and 2.5–5 mL/min/1.73 m2/year, respectively. When the combined changes in UACR and eGFR were used, the highest ESKD risk (HR 5.60; 95% CI 2.08 to 15.09) was observed among patients with >30% UACR increase and an eGFR decline of >5 mL/min/1.73 m2/year compared with those with a minor change in UACR and eGFR.Conclusions Combined changes in albuminuria and eGFR over 2 years were strongly associated with future risk of kidney failure in patients with type 2 diabetes.
ISSN:2052-4897

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