Evidence map›Paper›PMID 27789674›Full record

Trial reportInternational journal of epidemiology2016

The effect of neonatal vitamin A supplementation on morbidity and mortality at 12 months: a randomized trial.

Emily R Smith, Alfa Muhihi, Salum Mshamu, Christopher R Sudfeld, Ramadhani Abdallah Noor, Donna Spiegelman, Roger L Shapiro, Honorati Masanja, Wafaie Fawzi

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of epidemiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Neonatal vitamin A supplementation and immune responses to oral polio vaccine in Zimbabwean infants.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2019
    Trial
  6. Review
  7. Article
  8. 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.

Emily R SmithDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Alfa MuhihiAfrica Academy of Public Health, Dar es Salaam, Tanzania.
Salum MshamuAfrica Academy of Public Health, Dar es Salaam, Tanzania.
Christopher R SudfeldDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Ramadhani Abdallah NoorAfrica Academy of Public Health, Dar es Salaam, Tanzania.
Donna SpiegelmanDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Roger L ShapiroDepartment of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Honorati MasanjaIfakara Health Institute, Dar es Salaam, Tanzania.
Wafaie FawziDepartment of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Africa Academy for Public Health · TZHarvard Global Health Institute · USHarvard University · USIfakara Health Institute · TZ

Funding

BIOSTATISTICS/EPIDEMIOLOGY TRAINING GRANTS IN AIDST32AI007358 · NIAID · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI Michael David Hughes · 1989 to 2026
$12.4M
NIAID NIH HHS T32 AI007358
6 · The paper itself

Abstract

Background: : Neonatal vitamin A supplementation (NVAS) is an intervention hypothesized to reduce infant morbidity and mortality. The objective of this study was to assess the efficacy of neonatal vitamin A supplementation in reducing infant morbidity and mortality and assess potential sources of heterogeneity of the effect of NVAS. Methods: : We completed an individually randomized, double-blind, placebo-controlled trial in Tanzania. Infants were randomized within 3 days of birth to a single dose of vitamin A (50 000 IU) or placebo. We assessed infants at 1 and 3 days after supplementation, as well as 1, 3, 6 and 12 months after supplementation. We included all live births in the analysis and used relative risks (RR) and 95% confidence intervals (CI) to assess the risks of mortality and hospitalization by 12 months. We used general estimating equations to assess the incidence of morbidities during infancy. Results: : A total of 31 999 infants were enrolled in the study between August 2010 and March 2013. At 12 months, vitamin A did not reduce all-cause infant mortality (RR 1.04; 95% CI 0.92-1.16), nor affect hospitalization (RR 1.09; 95% CI 0.97-1.22) or all-cause morbidity (RR 1.00; 95% CI 0.96-1.05). Postpartum maternal vitamin A supplementation modified the effect of neonatal vitamin A supplementation on mortality at 12 months ( P -value, test for interaction = 0.04). Among infants born to women who received a mega-dose of vitamin A after delivery, NVAS appeared to increase the risk of death (RR 1.12; 95% CI 0.98-1.29), whereas the risk of death among infants born to women who did not receive a mega-dose was reduced (RR 0.86; 95% CI 0.70-1.06). We noted no modification of the effect of NVAS by infant gender, birthweight or maternal HIV status. Conclusion: : NVAS did not affect the risk of death or incidence of common childhood morbidities. However, this study sheds light on potential sources of heterogeneity of the effect of neonatal vitamin A supplementation which should be further examined in a pooled analysis of all NVAS trials.

Indexed as

Infant MortalityInfant Nutritional Physiological PhenomenaMorbidityDietary SupplementsDouble-Blind MethodFemaleHospitalizationHumansInfantInfant, NewbornMaleRegression AnalysisTanzaniaVitamin AVitamin A DeficiencyVitaminsVitamin AVitaminshospitalizationinfant mortalitymorbidityNeonatal vitamin A supplementationTanzania

Identifiers

PMID27789674
PMCPMC5841838
OpenAlexW2545312840

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.