A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease

Background Type 2 diabetes mellitus (T2DM) with chronic kidney disease (CKD) poses a serious health threat and becomes a new challenge. T2DM patients with CKD fall into three categories, diabetic nephropathy (DN), non-diabetic kidney disease (NDKD), and diabetic nephropathy plus non-diabetic kidney...

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Main Authors: Xi He, Yuanjun Deng, Beichen Tian, Yixuan Zhao, Min Han, Yang Cai
Format: Article
Language:English
Published: PeerJ Inc. 2024-02-01
Series:PeerJ
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Online Access:https://peerj.com/articles/16915.pdf
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author Xi He
Yuanjun Deng
Beichen Tian
Yixuan Zhao
Min Han
Yang Cai
author_facet Xi He
Yuanjun Deng
Beichen Tian
Yixuan Zhao
Min Han
Yang Cai
author_sort Xi He
collection DOAJ
description Background Type 2 diabetes mellitus (T2DM) with chronic kidney disease (CKD) poses a serious health threat and becomes a new challenge. T2DM patients with CKD fall into three categories, diabetic nephropathy (DN), non-diabetic kidney disease (NDKD), and diabetic nephropathy plus non-diabetic kidney disease (DN + NDKD), according to kidney biopsy. The purpose of our study was to compare the clinical characteristics and kidney outcomes of DN, NDKD, and DN + NDKD patients. Methods Data on clinical characteristics, pathological findings, and prognosis were collected from June 2016 to July 2022 in patients with previously diagnosed T2DM and confirmed DN and or NDKD by kidney biopsy at Tongji Hospital in Wuhan, China. The endpoint was defined as kidney transplantation, dialysis, or a twofold increase in serum creatinine. Results In our 6-year retrospective cohort research, a total of 268 diabetic patients were admitted and categorized into three groups by kidney biopsy. The 268 patients were assigned to DN (n = 74), NDKD (n = 109), and DN + NDKD (n = 85) groups. The most frequent NDKD was membranous nephropathy (MN) (n = 45,41.28%). Hypertensive nephropathy was the most common subtype in the DN+NDKD group (n = 34,40%). A total of 34 patients (12.7%) reached the endpoint. The difference between the Kaplan-Meier survival curves of the DN, NDKD, and DN + NDKD groups was significant (p < 0.05). Multifactorial analysis showed that increased SBP [HR (95% CI): 1.018(1.002–1.035), p = 0.025], lower Hb [HR(95% CI): 0.979(0.961–0.997), p = 0.023], higher glycosylated hemoglobin [HR(95% CI): 1.338(1.080–1.658), p = 0.008] and reduced serum ALB [HR(95% CI): 0.952(0.910–0.996), p = 0.032] were risk factors for outcomes in the T2DM patients with CKD. Conclusions This research based on a Chinese cohort demonstrated that the risk of endpoint events differed among DN, NDKD, and DN+NDKD patients. In T2DM patients with CKD, DN patients displayed worse kidney prognosis than those with NDKD or DN + NDKD. Increased SBP, higher glycosylated hemoglobin, lower Hb, and decreased serum ALB may be correlated with adverse kidney outcomes in T2DM patients.
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spelling doaj.art-3ecfbd93852a4c6b88265514efb805c82024-02-21T15:05:15ZengPeerJ Inc.PeerJ2167-83592024-02-0112e1691510.7717/peerj.16915A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney diseaseXi He0Yuanjun Deng1Beichen Tian2Yixuan Zhao3Min Han4Yang Cai5Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaBackground Type 2 diabetes mellitus (T2DM) with chronic kidney disease (CKD) poses a serious health threat and becomes a new challenge. T2DM patients with CKD fall into three categories, diabetic nephropathy (DN), non-diabetic kidney disease (NDKD), and diabetic nephropathy plus non-diabetic kidney disease (DN + NDKD), according to kidney biopsy. The purpose of our study was to compare the clinical characteristics and kidney outcomes of DN, NDKD, and DN + NDKD patients. Methods Data on clinical characteristics, pathological findings, and prognosis were collected from June 2016 to July 2022 in patients with previously diagnosed T2DM and confirmed DN and or NDKD by kidney biopsy at Tongji Hospital in Wuhan, China. The endpoint was defined as kidney transplantation, dialysis, or a twofold increase in serum creatinine. Results In our 6-year retrospective cohort research, a total of 268 diabetic patients were admitted and categorized into three groups by kidney biopsy. The 268 patients were assigned to DN (n = 74), NDKD (n = 109), and DN + NDKD (n = 85) groups. The most frequent NDKD was membranous nephropathy (MN) (n = 45,41.28%). Hypertensive nephropathy was the most common subtype in the DN+NDKD group (n = 34,40%). A total of 34 patients (12.7%) reached the endpoint. The difference between the Kaplan-Meier survival curves of the DN, NDKD, and DN + NDKD groups was significant (p < 0.05). Multifactorial analysis showed that increased SBP [HR (95% CI): 1.018(1.002–1.035), p = 0.025], lower Hb [HR(95% CI): 0.979(0.961–0.997), p = 0.023], higher glycosylated hemoglobin [HR(95% CI): 1.338(1.080–1.658), p = 0.008] and reduced serum ALB [HR(95% CI): 0.952(0.910–0.996), p = 0.032] were risk factors for outcomes in the T2DM patients with CKD. Conclusions This research based on a Chinese cohort demonstrated that the risk of endpoint events differed among DN, NDKD, and DN+NDKD patients. In T2DM patients with CKD, DN patients displayed worse kidney prognosis than those with NDKD or DN + NDKD. Increased SBP, higher glycosylated hemoglobin, lower Hb, and decreased serum ALB may be correlated with adverse kidney outcomes in T2DM patients.https://peerj.com/articles/16915.pdfDiabetic nephropathyNon-diabetic kidney diseaseType 2 diabetes mellitusKidney biopsy
spellingShingle Xi He
Yuanjun Deng
Beichen Tian
Yixuan Zhao
Min Han
Yang Cai
A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
PeerJ
Diabetic nephropathy
Non-diabetic kidney disease
Type 2 diabetes mellitus
Kidney biopsy
title A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
title_full A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
title_fullStr A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
title_full_unstemmed A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
title_short A retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
title_sort retrospective cohort study of clinical characteristics and outcomes of type 2 diabetic patients with kidney disease
topic Diabetic nephropathy
Non-diabetic kidney disease
Type 2 diabetes mellitus
Kidney biopsy
url https://peerj.com/articles/16915.pdf
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