Articles Vol. 67 No. CĐ5-NCKH 04/05/2026

STUDY OF SERUM VITAMIN D CONCENTRATIONS IN ELDERLY PATIENTS UNDERGOING PERIODIC HEMODIALYSIS AT FRIENDSHIP HOSPITAL

Bui Long1,2, Trinh Thi Thanh Hang1,2
1 Huu Nghi Hospital
2 Bệnh viện Hữu Nghị
DOI: 10.52163/yhc.v67iCD5.4977
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Keywords
VitaminD, dialysis
Abstract

Background: Vitamin D deficiency has been shown to be highly prevalent in the elderly. In patients undergoing maintenance hemodialysis, this condition becomes even more severe.

Objective: To evaluate serum vitamin D levels in elderly hemodialysis patients at Huu Nghi Hospital and identify associated factors.

Subjects and Methods: A descriptive study was conducted on outpatients receiving maintenance hemodialysis at the Department of Nephrology – Dialysis, Huu Nghi Hospital from May 2025 to August 2025.

Results: The study included 65 elderly hemodialysis patients, of whom 63.1% were male; the mean age was 76.21 ± 8.05 years. Most patients had a normal BMI (72.3%). The mean serum 25(OH)D level was 23.11 ± 12.54 ng/mL. The prevalence of vitamin D deficiency was high, with moderate deficiency being the most common (35.4%), followed by mild deficiency (27.7%) and severe deficiency (10.8%). There were no significant differences in 25(OH)D levels by sex, age group, or BMI (p > 0.05). In the multivariate regression analysis, serum albumin <35 g/L was an independent association with the risk of low vitamin D levels (OR 13.062; p = 0,038). Factors such as sex, smoking, dialysis duration, corrected total calcium, serum phosphorus, and PTH were not statistically significant.

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