Trial reportBMJ paediatrics open2024
Influence of vitamin D supplementation on growth, body composition, pubertal development and spirometry in South African schoolchildren: a randomised controlled trial (ViDiKids).
Trial report in BMJ paediatrics open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02880982 (Trial of Vitamin D Supplementation in Cape Town Primary Schoolchildren), which is not on this map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Trial of Vitamin D Supplementation in Cape Town Primary Schoolchildren
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- The health outcomes of vitamin D supplementation in Africa: a systematic review and meta-analysis.BMC nutrition · 2025Pooled it
- Lung function across the life course in Kenya: a series of cross-sectional surveys.ERJ open research · 2026Article
- Article
- Effects of vitamin A and vitamin DTranslational pediatrics · 2025Article
- Influence of vitamin D supplementation on muscle strength and exercise capacity in Mongolian schoolchildren: a randomised controlled trial.medRxiv : the preprint server for health sciences · 2024Article
- Influence of vitamin D supplementation on muscle strength and exercise capacity in Mongolian schoolchildren: secondary outcomes from a randomised controlled trial.BMJ open sport & exercise medicine · 2024Article
- Influence of vitamin D supplementation on muscle strength and exercise capacity in South African schoolchildren: secondary outcomes from a randomised controlled trial (ViDiKids).BMJ open sport & exercise medicine · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors at 6 institutions in 6 countries.
Funding
Abstract
objectiveTo determine whether weekly oral vitamin D supplementation influences growth, body composition, pubertal development or spirometric outcomes in South African schoolchildren.
designPhase 3 double-blind randomised placebo-controlled trial.
settingSocioeconomically disadvantaged peri-urban district of Cape Town, South Africa.
participants1682 children of black African ancestry attending government primary schools and aged 6-11 years at baseline.
interventionsOral vitamin D
main outcome measuresHeight-for-age and body mass index-for-age, measured in all participants; Tanner scores for pubertal development, spirometric lung volumes and body composition, measured in a subset of 450 children who additionally took part in a nested substudy.
resultsMean serum 25-hydroxyvitamin D
conclusionsWeekly oral administration of 10 000 IU vitamin D TRIAL REGISTRATION NUMBERS: ClinicalTrials.gov NCT02880982, South African National Clinical Trials Register DOH-27-0916-5527.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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 OpenQuestion graph.