Abstract
BackgroundTo investigate the association between sex differences and end-stage kidney disease (ESKD) in patients with biopsy-confirmed diabetic kidney disease (DKD).MethodWe performed a retrospective cohort study. A total of 336 patients with biopsy-confirmed DKD who were followed up for at least 12 months were enrolled. Baseline clinical and pathological data at the time of biopsy were collected. ESKD was defined by an estimated glomerular filtration rate of <15 ml/min/1.73 m2 or initiation of renal replacement therapy. The association between sex differences and ESKD was assessed using the log-rank test and Cox regression.ResultThere were 239 (71%) male and 97 (29%) female patients in our cohort. Female patients had higher systolic blood pressure, total cholesterol and low-density lipoprotein cholesterol levels compared with male. There were a lower proportion of female patients in the very high risk grade according to the chronic kidney disease categories (37% of female vs. 44% of male). During a median follow-up time of 20 months, 101 (57.7%) male and 43 (44.3%) female entered into ESKD, with no significant difference by the log-rank test (P >0.05). Univariate [male: hazard ratio (HR) [95% confidence interval (CI)], 1.005, (0.702–1.439)] and multivariable ([male: HR (95%CI), 1.164, (0.675–2.007)]. Cox regression further showed that sex difference was not significantly associated with ESKD.ConclusionFemale patients had the higher systolic blood pressure, total cholesterol, LDL-C, compared with male patients. However, there was no significant association observed between sex difference and ESKD in our study.
Highlights
Diabetic kidney disease (DKD) is one of the most common microvascular complications of diabetes
There were no significant differences in glomerular class, interstitial fibrosis and tubular atrophy (IFTA), interstitial inflammation and arteriolar hyalinosis between male and female patients
There was no association between sex difference and end-stage kidney disease (ESKD) in our study
Summary
Diabetic kidney disease (DKD) is one of the most common microvascular complications of diabetes. Despite improvements of management in basic research and clinical practice, DKD remains the leading cause of end-stage kidney disease (ESKD) worldwide [1, 2]. Sex Differences in DKD them had diabetes) showed that male patients had the higher risk of CKD progression and death compared with female patients [4]. Another large meta-analysis reported that males with CKD showed a more rapid decline in renal function than which in females, only patients with nondiabetic CKD were analyzed in that study [7]. To investigate the association between sex differences and end-stage kidney disease (ESKD) in patients with biopsy-confirmed diabetic kidney disease (DKD)
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