International Urology and Nephrology

, Volume 46, Issue 7, pp 1375–1381

Diabetic retinopathy and renal function in Chinese type 2 diabetic patients

  • Huiyan Zhang
  • Jianyong Wang
  • Gui-shuang Ying
  • Liping Shen
  • Zhe Zhang
Nephrology - Original Paper

DOI: 10.1007/s11255-014-0675-4

Cite this article as:
Zhang, H., Wang, J., Ying, G. et al. Int Urol Nephrol (2014) 46: 1375. doi:10.1007/s11255-014-0675-4

Abstract

Aims

To evaluate associations of diabetic retinopathy (DR) with renal function in Chinese type 2 diabetic patients.

Methods

This cross-sectional study enrolled 523 type 2 diabetic patients. All patients underwent ophthalmic examination to assess DR [normal, non-proliferative DR (NPDR), proliferative DR (PDR)]. The renal function measurements were taken in urine and blood. The estimated glomerular rate (eGFR) and albumin/creatinine ratio (ACR) were calculated using standard formulas. The chronic kidney disease (CKD) was defined as eGFR < 60 mL/min/1.73 m2, and microalbuminuria was defined as ACR > 17 for males and ACR > 25 for females. The associations of DR with renal function and CKD were assessed by regression models, without and with the adjustment of risk factors for CKD.

Results

In multivariate analysis, increasing severity of DR was significantly associated with lower eGFR (p < 0.001), higher level of retinol-binding protein (p < 0.001), and larger ACR (p < 0.0001). The DR was significantly associated increased risk of CKD with odds ratio of 2.22 (95 % CI 1.01–4.86) for NPDR and 3.52 (1.30–9.55) for PDR.

Conclusions

Among Chinese type 2 diabetic patients, increasing DR severity is significantly associated reduced kidney function and increased risk of CKD. These associations are independent of risk factors for CKD, suggesting that assessment of DR may provide useful information on the renal function and risk of kidney disease.

Keywords

Diabetic retinopathyRenal functionChronic kidney disease

Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Huiyan Zhang
    • 1
  • Jianyong Wang
    • 2
  • Gui-shuang Ying
    • 3
  • Liping Shen
    • 2
  • Zhe Zhang
    • 4
  1. 1.College of Professional Technology of HangzhouHangzhouPeople’s Republic of China
  2. 2.Department of Ophthalmology, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouPeople’s Republic of China
  3. 3.Center for Preventive Ophthalmology and Biostatistics, Department of Ophthalmology, Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaUSA
  4. 4.Department of Endocrinology, The First Affiliated Hospital, School of MedicineZhejiang UniversityHangzhouPeople’s Republic of China