Evidence map›Paper›PMID 31796482›Full record

ArticleBMJ open2019

Vitamin D prescribing in children in UK primary care practices: a population-based cohort study.

Mandy Wan, Laura J Horsfall, Emre Basatemur, Jignesh Prakash Patel, Rukshana Shroff, Greta Rait

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Hypervitaminosis D and nephrocalcinosis: too much of a good thing?Pediatric nephrology (Berlin, Germany) · 2022
    Article
  6. Observational
  7. Article
  8. Article
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 1 country.

Mandy WanEvelina Pharmacy, Guy's and Saint Thomas' NHS Foundation Trust, London, UK Mandy.Wan@gstt.nhs.uk.
Laura J HorsfallResearch Department of Primary Care and Population Health, University College London, London, UK.
Emre BasatemurPopulation, Policy and Practice Programme, University College London, London, UK.
Jignesh Prakash PatelInstitute of Pharmaceutical Science, King's College London, London, UK.
Rukshana ShroffRenal Unit, Great Ormond Street Hospital For Children NHS Foundation Trust, London, UK.
Greta RaitResearch Department of Primary Care and Population Health, University College London, London, UK.
University College London · GBGreat Ormond Street Hospital for Children NHS Foundation Trust · GBKing's College Hospital NHS Foundation Trust · GBKing's College London · GB

Funding

Department of Health CDF-2016-09-038Department of Health ICA-CDRF-2016-02-057Wellcome TrustWellcome Trust 209207/Z/17/Z
6 · The paper itself

Abstract

objectiveTo examine temporal changes in the incidence and patterns of vitamin D supplementation prescribing by general practitioners (GPs) between 2008 and 2016.

designPopulation-based cohort study.

settingUK general practice health records from The Health Improvement Network.

participantsChildren aged 0 to 17 years who were registered with their general practices for at least 3 months. OUTCOME MEASURES: Annual incidence rates of vitamin D prescriptions were calculated, and rate ratios were estimated using multivariable Poisson regression to explore differences by sociodemographic factors. Data on the type of supplementation, dose, dosing schedule, linked 25-hydroxyvitamin D (25(OH)D) laboratory test results and clinical symptoms suggestive of vitamin D deficiency were analysed.

resultsAmong 2 million children, the crude annual incidence of vitamin D prescribing increased by 26-fold between 2008 and 2016 rising from 10.8 (95% CI: 8.9 to 13.1) to 276.8 (95% CI: 264.3 to 289.9) per 100 000 person-years. Older children, non-white ethnicity and general practices in England (compared with Wales/Scotland/Northern Ireland) were independently associated with higher rates of prescribing. Analyses of incident prescriptions showed inconsistent supplementation regimens with an absence of pre-supplementation 25(OH)D concentrations in 28.7% to 56.4% of prescriptions annually. There was an increasing trend in prescribing at pharmacological doses irrespective of 25(OH)D concentrations, deviating in part from UK recommendations. Prescribing at pharmacological doses for children with deficient status increased from 3.8% to 79.4%, but the rise was also observed in children for whom guidelines recommended prevention doses (0% to 53%). Vitamin D supplementation at pharmacological doses was also prescribed in at least 40% of children with no pre-supplementation 25(OH)D concentrations annually.

conclusionsThere has been a marked and sustained increase in vitamin D supplementation prescribing in children in UK primary care. Our data suggests that national guidelines on vitamin D supplementation for children are not consistently followed by GPs.

Indexed as

AdolescentChildChild, PreschoolCohort StudiesDrug PrescriptionsFemaleHumansInfantInfant, NewbornMaleMultivariate AnalysisPrimary Health CareRegression AnalysisUnited KingdomVitamin DVitamin D Deficiency25-hydroxyvitamin DVitamin DVitaminsepidemiologypaediatric endocrinologypaediatrics

Identifiers

PMID31796482
PMCPMC6937102
OpenAlexW2994406207

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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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 OpenQuestion graph.