Evidence map›Paper›PMID 40995255›Full record

ArticleCureus2025

Association Between Vitamin D Supplementation and Urolithiasis Recurrence Outcomes in Known Stone Formers: A Retrospective Cohort Study With Dose-Response Analysis.

Nawaf Alzaben, Abdulrahman Mokhtar, Faisal Altwijri, Saleh Alawaji, Raed Almannie, Saleh Binsaleh, Abdulaziz Althunayan

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Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Nawaf AlzabenDepartment of Urology, King Saud University, Riyadh, SAU.
Abdulrahman MokhtarDepartment of Urology, King Saud University, Riyadh, SAU.
Faisal AltwijriDepartment of Urology, King Khalid University Hospital, Riyadh, SAU.
Saleh AlawajiDepartment of Radiology, King Saud University, Riyadh, SAU.
Raed AlmannieDepartment of Urology, King Saud University, Riyadh, SAU.
Saleh BinsalehDepartment of Urology, King Saud University, Riyadh, SAU.
Abdulaziz AlthunayanDepartment of Urology, King Saud University, Riyadh, SAU.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background Vitamin D supplementation is widely prescribed to correct vitamin D deficiency, but its impact on urinary stone recurrence in patients with a history of urolithiasis (stone formers) remains uncertain. Methods We conducted this retrospective cohort study at King Khalid University Hospital, Riyadh, Saudi Arabia. A total of 353 adult stone formers were categorized as non-supplemented (n = 235) or supplemented (n = 118), with stratification by dose (≤800 IU daily, 10,000 IU weekly, and 50,000 IU weekly). The primary outcome was the recurrence of urolithiasis. Secondary outcomes included time-to-recurrence and dose-response. Statistical methods included chi-square testing, Kaplan-Meier analysis, subgroup comparison, and multivariable logistic regression. Clinical and laboratory data were extracted from electronic medical records using a standardized data collection form. Results The mean age of patients was 45.5 ± 14.3 years, with males comprising 68.3% of the cohort. Recurrence occurred in 32.8% of non-supplemented and 45.8% of supplemented patients (absolute risk increase = 13.0%). Multivariable analysis showed higher odds of recurrence with supplementation (adjusted OR = 1.65, 95% CI: 1.01-2.71; p = 0.047). Recurrence rates differed significantly by dose category (p = 0.049), with the highest in the 50,000 IU group. Kaplan-Meier analysis showed no significant difference in time-to-recurrence (p = 0.071). Conclusions In this retrospective cohort of known stone formers, vitamin D supplementation, particularly at higher doses, was associated with a greater risk of recurrence. These findings support the possible need for a more individualized, dose-conscious approach to supplementation in stone-prone patients.

Indexed as

dose-response relationshipretrospective cohortstone recurrenceurolithiasisvitamin d

Identifiers

PMID40995255
PMCPMC12455253

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.