Evidence map›Paper›PMID 34352883›Full record

SynthesisPloS one2021

ELBW and ELGAN outcomes in developing nations-Systematic review and meta-analysis.

Viraraghavan Vadakkencherry Ramaswamy, Thangaraj Abiramalatha, Tapas Bandyopadhyay, Nasreen Banu Shaik, Prathik Bandiya, Debasish Nanda, Abdul Kareem Pullattayil S, Srinivas Murki, Charles Christoph Roehr

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 5 pooled it
4.5field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 5 syntheses or guidelines pooled it, 55 citations in OpenAlex.

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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

9 authors at 6 institutions in 2 countries.

Viraraghavan Vadakkencherry RamaswamyDepartment of Neonatology, Ankura Hospital for Women and Children, Hyderabad, India.
Thangaraj AbiramalathaDepartment of Neonatology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India.
Tapas BandyopadhyayDepartment of Neonatology, Dr Ram Manohar Lohia Hospital & Post Graduate Institute of Medical Education and Research, New Delhi, India.ORCID 0000-0001-6872-0942
Nasreen Banu ShaikDepartment of Neonatology, Ankura Hospital for Women and Children, Hyderabad, India.
Prathik BandiyaDepartment of Neonatology, Indira Gandhi Institute of Child Health, Bengaluru, India.
Debasish NandaDepartment of Neonatology, Institute of Medical Sciences and SUM Hospital, Bhubaneswar, Orissa, India.
Abdul Kareem Pullattayil SDepartment of Clinical Library, Sidra Medicine, Ar-Rayyan, Qatar.ORCID 0000-0002-6718-5228
Srinivas MurkiDepartment of Neonatology, Paramitha Women and Children's Hospital, Hyderabad, India.
Charles Christoph RoehrNational Perinatal Epidemiology Unit, Nuffield Department of Population Health, Medical Sciences, Division, University of Oxford, Oxford, United Kingdom.
Niloufer Hospital · INAtal Bihari Vajpayee Institute of Medical Sciences and Dr. Ram Manohar Lohia Hospital · INIndira Gandhi Institute of Child Health · INInstitute of Medical Sciences and Sum Hospital · INNorth Bristol NHS Trust · GBSri Ramachandra Institute of Higher Education and Research · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextMorbidity and mortality amongst extremely low birth weight (ELBW) and extremely low gestational age neonates (ELGANs) in developing nations has not been well studied.

objectivesEvaluate survival until discharge, short- and long-term morbidities of ELBW and ELGANs in LMICs. DATA SOURCES: CENTRAL, EMBASE, MEDLINE and Web of Science. STUDY SELECTION: Prospective and retrospective observational studies were included. DATA EXTRACTION AND SYNTHESIS: Four authors extracted data independently. Random-effects meta-analysis of proportions was used to synthesize data, modified QUIPS scale to evaluate quality of studies and GRADE approach to ascertain the certainty of evidence (CoE).

results192 studies enrolling 22,278 ELBW and 18,338 ELGANs were included. Survival was 34% (95% CI: 31% - 37%) (CoE-low) for ELBW and 39% (34% - 44%) (CoE-moderate) for ELGANs. For ELBW neonates, the survival for low-income (LI), lower middle-income (LMI) and upper middle income (UMI) countries was 18% (11% - 28%), 28% (21% - 35%) and 39% (36% - 42%), respectively. For ELGANs, it was 13% (8% - 20%) for LI, 28% (21% - 36%) for LMI and 48% (42% - 53%) for UMI countries. There was no difference in survival between two epochs: 2000-2009 and 2010-2020. Except for necrotising enterocolitis [ELBW and ELGANs-8% (7% - 10%)] and periventricular leukomalacia [ELBW-7% (4% - 11%); ELGANs-6% (5%-7%)], rates of all other morbidities were higher compared to developed nations. Rates of neurodevelopmental impairment was 17% (7% - 34%) in ELBW neonates and 29% (23% - 37%) in ELGANs. LIMITATIONS: CoE was very low to low for all secondary outcomes.

conclusionsMortality and morbidity amongst ELBW and ELGANs is still a significant burden in LMICs. CoE was very low to low for all the secondary outcomes, emphasizing the need for high quality prospective cohort studies.

trial registrationPROSPERO (CRD42020222873).

Indexed as

Infant, Extremely Low Birth WeightInfant MortalityInfant, PrematureDeveloping CountriesFemaleGestational AgeHumansInfantInfant, NewbornMaleObservational Studies as TopicSurvival Analysis

Identifiers

PMID34352883
PMCPMC8342042
OpenAlexW3191329383

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.