Evidence map›Paper›PMID 26162355›Full record

ArticleThe international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease2015

Vitamin D deficiency in Malawian adults with pulmonary tuberculosis: risk factors and treatment outcomes.

D J Sloan, H C Mwandumba, M Kamdolozi, D Shani, B Chisale, J Dutton, S H Khoo, T J Allain, G R Davies

Open access · greenAbstract read
In one paragraph

Article in The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.2field-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

9 citing papers in PubMed, 22 citations in OpenAlex.

  1. Trial
  2. Impact of Vitamin D in Prophylaxis and Treatment in Tuberculosis Patients.International journal of molecular sciences · 2022
    Review
  3. Observational
  4. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

D J SloanMalawi Liverpool Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Liverpool Heart and Chest Hospital, Liverpool, UK; Liverpool School of Tropical Medicine, Liverpool, UK; Department of Microbiology, College of Medicine, University of Malawi, Blantyre, Malawi Department of Medicine, College of Medicine, University of Malawi, Blantyre, Malawi.
H C MwandumbaMalawi Liverpool Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi, Liverpool School of Tropical Medicine, Liverpool, UK; Department of Microbiology, College of Medicine, University of Malawi, Blantyre, Malawi; Department of Medicine, College of Medicine, University of Malawi, Blantyre, Malawi.
M KamdoloziDepartment of Microbiology, College of Medicine, University of Malawi, Blantyre, Malawi.
D ShaniDepartment of Microbiology, College of Medicine, University of Malawi, Blantyre, Malawi.
B ChisaleMalawi Liverpool Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi.
J DuttonUniversity of East Anglia, Norwich, UK.
S H KhooDepartment of Pharmacology, University of Liverpool, Liverpool, UK.
T J AllainDepartment of Medicine, College of Medicine, University of Malawi, Blantyre, Malawi.
G R DaviesMalawi Liverpool Wellcome Trust Clinical Research Programme, College of Medicine, University of Malawi, Blantyre, Malawi; Department of Medicine, College of Medicine, University of Malawi, Blantyre, Malawi; Institute of Infection and Global Health, University of Liverpool, UK.
University of Liverpool · GBUniversity of Malawi · MWLiverpool School of Tropical Medicine · GBUniversity of East Anglia · GB

Funding

Wellcome Trust 100890
6 · The paper itself

Abstract

settingVitamin D deficiency is common in African adults with tuberculosis (TB), and may be exacerbated by the metabolic effects of anti-tuberculosis drugs and antiretroviral therapy (ART). It is unclear whether vitamin D deficiency influences response to anti-tuberculosis treatment.

objectivesTo describe risk factors for baseline vitamin D deficiency in Malawian adults with pulmonary TB, assess the relationship between serum 25-hydroxy vitamin D (25[OH]D) concentration and treatment response, and evaluate whether the administration of anti-tuberculosis drugs and ART is deleterious to vitamin D status during treatment.

designA prospective longitudinal cohort study.

resultsThe median baseline 25(OH)D concentration of the 169 patients (58% human immunodeficiency virus [HIV] infected) recruited was 57 nmol/l; 47 (28%) had vitamin D deficiency (<50 nmol/l). Baseline 25(OH)D concentrations were lower during the cold season (P < 0.001), with food insecurity (P = 0.034) or in patients who consumed alcohol (P = 0.019). No relationship between vitamin D status and anti-tuberculosis treatment response was found. 25(OH)D concentrations increased during anti-tuberculosis treatment, irrespective of HIV status or use of ART.

conclusionsVitamin D deficiency is common among TB patients in Malawi, but this does not influence treatment response. Adverse metabolic effects of drug treatment may be compensated by the positive impact of clinical recovery preventing exacerbation of vitamin D deficiency during anti-tuberculosis treatment.

Indexed as

AdultAnti-HIV AgentsAntitubercular AgentsCohort StudiesFemaleHIV InfectionsHumansLongitudinal StudiesMalawiMaleProspective StudiesRisk FactorsTreatment OutcomeTuberculosis, PulmonaryVitamin DVitamin D Deficiency25-hydroxyvitamin DAnti-HIV AgentsAntitubercular AgentsVitamin D

Identifiers

PMID26162355
PMCPMC4497634
OpenAlexW962612974

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.