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Chinese Journal of Cerebrovascular Diseases(Electronic Edition) ›› 2025, Vol. 19 ›› Issue (01): 25-31. doi: 10.3877/cma.j.issn.1673-9248.2025.01.005

• Clinical Research • Previous Articles     Next Articles

Relationship between urinary microalbumin/urinary creatinine ratio and cerebral microbleed in middle-aged and elderly diabetic patients

Jian Yuan1, Pei Zhao1, Yun Deng1, Zemin Shao1, Feihong Chen2, Fan Yang3, Desheng Zhu1,4,()   

  1. 1. Department of Neurology,Renji Hospital baoshan branch, Shanghai Jiao Tong University School of Medicine,Shanghai 200436, China
    2. Department of Nephrology,Renji Hospital baoshan branch, Shanghai Jiao Tong University School of Medicine,Shanghai 200436, China
    3. Department of Endocrinology, Renji Hospital baoshan branch, Shanghai Jiao Tong University School of Medicine,Shanghai 200436, China
    4. Department of Neurology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
  • Received:2024-08-04 Online:2025-02-01 Published:2025-04-02
  • Contact: Desheng Zhu

Abstract:

Objective

To investigate the relationship between urine albumin-to-creatinine ratio(UACR) and cerebral microbleed (CMB) in middle-aged and elderly diabetic patients, and to explore its clinical significance.

Methods

A retrospective analysis was conducted on the clinical data of 957 patients with diabetes diagnosed in the Department of Neurology, Nephrology, and Endocrinology at Baoshan Branch of Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, from July 2019 to July 2023. Patients were divided into two groups based on imaging assessments: those with and without CMB. The clinical and biochemical characteristics between the two groups were compared, and the differences in the incidence of CMB were compared according to UACR the threshold values. Spearman correlation analysis, multivariate binary Logistic regression analysis, and curve fitting analysis were used to explore the relationship between UACR and CMB.

Results

Among the middle-aged and elderly diabetic patients, 11.7% (112/957) were found to have CMB.There were statistically significant differences in age, diastolic blood pressure, systolic blood pressure, body mass index (BMI), disease duration, hemoglobin, platelet count, alanine aminotransferase, and triglyceride between diabetic patients with CMB and those without CMB (all P<0.05). The incidence of CMB in patients with high or normal UACR were 18.16% and 6.57% respectively, with a statistically significant difference (χ2=0.36, P<0.001).UACR levels were positively correlated with the occurrence of CMB (r=0.183, P<0.001). Multivariate binary Logistic regression analysis showed that Log2UACR was associated with the risk of CMB, with odds ratios (OR)of 1.295 (95%CI: 1.182-1.418, P<0.001) and before 1.223 (95%CI: 1.034-1.445, P<0.001) after adjusting for confounding factors. Curve fitting analysis revealed an increasing relationship between Log2UACR levels and the probability of CMB (χ2=28.428, P<0.001).

Conclusion

Elevated UACR is closely related to the occurrence of CMB in middle-aged and elderly diabetic patients. Clinical findings suggest that the increase of UACR level might be a risk factor for the occurrence of CMB and had a certain value in evaluating the likelihood of CMB occurrence.

Key words: Diabetic, Urine albumin-to-creatinine ratio, Cerebral microbleed, Correlation

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