Evidence map›Paper›PMID 35324007›Full record

Observational studyInternational journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics2023

Seroprevalence of SARS-CoV-2 antibodies among first-trimester pregnant women during the second wave of the pandemic in India.

Kandala Aparna Sharma, Nilanchali Singh, Sara Hillman, Purva Mathur, Kapil Yadav, Anapti Garg, Vatsla Dadhwal, Neerja Bhatla

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Response: Seroprevalence of SARS-CoV-2 antibodies among first-trimester pregnant women during the second wave of the pandemic in India.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2022
    Article
  5. Letter to the Editor: Seroprevalence of SARS-CoV-2 antibodies among first-trimester pregnant women during the second wave of the pandemic in India.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Kandala Aparna SharmaDepartment of Obstetrics and Gynecology, All India Institute of Medical Sciences, Delhi, India.ORCID https://orcid.org/0000-0002-7369-2007
Nilanchali SinghDepartment of Obstetrics and Gynecology, All India Institute of Medical Sciences, Delhi, India.
Sara HillmanDepartment of Obstetrics and Gynecology, University College of London, London, UK.
Purva MathurDepartment of Microbiology, Trauma Center, All India Institute of Medical Sciences, Delhi, India.
Kapil YadavDepartment of Community Medicine, All India Institute of Medical Sciences, Delhi, India.
Anapti GargDepartment of Obstetrics and Gynecology, All India Institute of Medical Sciences, Delhi, India.
Vatsla DadhwalDepartment of Obstetrics and Gynecology, All India Institute of Medical Sciences, Delhi, India.
Neerja BhatlaDepartment of Obstetrics and Gynecology, All India Institute of Medical Sciences, Delhi, India.
All India Institute of Medical Sciences · INUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveData on the immune response to SARS-CoV-2 during pregnancy are lacking and the potential role and effect of SARS-CoV-2 vaccination in pregnancy is yet to be completely investigated.

methodThis is a cross-sectional observational study wherein pregnant women were tested for SARS-CoV-2 immunoglobulin M and immunoglobulin G levels, irrespective of their infective status or presence or symptomatology.

resultOf the 220 pregnant women tested, 160 (72.7%) were SARS-CoV-2 IgG positive, 37 (16.8%) were SARS-CoV-2 IgM positive and 27 (16.9%) were both IgG and IgM positive. The average antibody titer found was 10.49 BAU/ml (±14.0) and 0.6 (±0.55) for anti-SARS-CoV-2 IgG and IgM non neutralizing antibodies respectively. ROC analysis for SARS-CoV-2 IgG positivity showed a cut-off value of 1.19 with a sensitivity of 99.3% (0.99 AUC, 95% CI) and specificity of 98.3% (0.99 AUC, 95% CI), respectively. Similarly, ROC analysis for SARS-CoV-2 IgM positivity showed a cut-off value of 1 with a sensitivity of 97.3% (0.99 AUC, 95% CI) and specificity of 98.9% (0.99 AUC, 95% CI), respectively.

conclusionFirst trimester sero-molecular screening suggests a high prevalence of COVID antibodies in the study population of pregnant women in the first trimester, without the patients being symptomatic.

Indexed as

COVID-19Pregnant PeopleAntibodies, ViralCOVID-19 VaccinesCross-Sectional StudiesFemaleHumansImmunoglobulin GImmunoglobulin MIndiaPandemicsPregnancyPregnancy Trimester, FirstSARS-CoV-2Seroepidemiologic StudiesAntibodies, ViralCOVID-19 VaccinesImmunoglobulin GImmunoglobulin MCOVIDfirst trimesterpandemicpregnancySARS-CoV-2seroprevalencewave

Identifiers

PMID35324007
PMCPMC9087646
OpenAlexW4220654018

What OpenQuestion holds

Textmetadata
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.