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During the congress, E-Posters will be accessible to all participants on the congress website 24/7, as well as in the E-poster stations in the congress center.
Preparing your E-Poster
Please review the E-Poster format requirements carefully when preparing your E-Poster. Should your E-Poster not meet the mentioned requirements, it may not be displayed as described above.
E-Poster Submission Deadline
Please prepare and upload your E-Poster no later than March 14, 2026 11.59PM CET. After this date, you will no longer be able to prepare and upload your E-poster and it will not be displayed and accessible on the congress website.
Please follow the instructions below to input your abstract title.
Abstract titles should be brief and reflect the content of the abstract.
Vitamin D deficiency is highly prevalent in patients with Chronic Kidney Disease (CKD), yet local data from the Philippines are limited. While 25-hydroxyvitamin D levels are not routinely measured in End-Stage Renal Disease (ESRD) due to cost, evidence suggests a 50%-90% deficiency rate in this population. This study aimed to determine the prevalence of vitamin D deficiency and insufficiency in CKD patients on hemodialysis at our institution and identify associated risk factors and comorbidities.
This prospective, hospital-based cross-sectional study was conducted from December 1, 2013, to November 30, 2014. We analyzed data from 23 adult CKD Stage 5 patients on maintenance hemodialysis for over one month. Blood samples were collected for 25-hydroxyvitamin D (25(OH)D3) and intact parathyroid hormone (iPTH), alongside routine labs. Vitamin D levels were classified as sufficient (≥30 ng/mL), insufficient (20-29 ng/mL), deficient (<20 ng/mL), and severely deficient (<10 ng/mL). Statistical analysis included Kruskal-Wallis One-way ANOVA and Pearson Chi-Square for subgroup differences and Point Biserial Correlation and Cramer's V for associations with variables such as age, gender, weight, dialysis duration and frequency, CKD etiology, albumin, creatinine, ionized calcium, phosphorus, 1,25 (OH)2 D3, iPTH, antihypertensive medications, and other supplements.
Among the 23 patients, 30.4% (n=7) were vitamin D sufficient, 26.1% (n=6) were insufficient, 30.4% (n=7) were deficient, and 13.0% (n=3) were severely deficient. Overall, 43.4% (n=10) exhibited vitamin D deficiency (including severe deficiency). A significant difference was observed in mean serum creatinine and vitamin D levels across vitamin D classifications (p < 0.05). Age was significantly associated with vitamin D sufficiency, with older patients more likely to be deficient. Gender did not show a statistically significant influence on vitamin D classification. Risk factors significantly associated with vitamin D deficiency/insufficiency included aspirin, sevelamer, and age. Furthermore, steroid use was associated with severe vitamin D deficiency. Regarding comorbidities, diabetic nephropathy significantly contributed to vitamin D insufficiency, while hypertensive nephrosclerosis was a significant contributor to vitamin D deficiency.
Vitamin D deficiency and insufficiency are highly prevalent among Filipino CKD patients on hemodialysis. Key factors associated with these vitamin D levels were aspirin, sevelamer, steroid use, and patient age. Diabetic nephropathy and hypertensive nephrosclerosis were significant contributing to comorbidities. These findings underscore the need for targeted interventions and further research into this population.
