Evidence map›Paper›PMID 33040457›Full record

Observational studyBJOG : an international journal of obstetrics and gynaecology2021

Chikungunya infection in pregnancy - reassuring maternal and perinatal outcomes: a retrospective observational study.

M E Foeller, C Nosrat, A Krystosik, T Noel, P Gérardin, N Cudjoe, V Mapp-Alexander, G Mitchell, C Macpherson, R Waechter and 1 more

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in BJOG : an international journal of obstetrics and gynaecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.2field-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

18 citing papers in PubMed, 28 citations in OpenAlex.

  1. Trial
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  12. Arboviruses and pregnancy: are the threats visible or hidden?Tropical diseases, travel medicine and vaccines · 2024
    Article
  13. Article
  14. Review
  15. Factors Associated with Chikungunya Infection among Pregnant Women in Grenada, West Indies.The American journal of tropical medicine and hygiene · 2023
    Article
  16. Chikungunya fever.Nature reviews. Disease primers · 2023
    Review
  17. Article
  18. 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

11 authors at 4 institutions in 3 countries.

M E FoellerDepartment of Obstetrics and Gynecology, Stanford University, Stanford, CA, USA.ORCID 0000-0003-2823-7678
C NosratProgram in Human Biology, Stanford University, Stanford, CA, USA.ORCID 0000-0003-1592-0400
A KrystosikDivision of Infectious Disease, Department of Pediatrics, Stanford University, School of Medicine, Stanford, CA, USA.ORCID 0000-0001-7944-8876
T NoelWindward Islands Research and Education Foundation, True Blue, Grenada.
P GérardinINSERM CIC1410, Centre Hospitalier Universitaire de la Réunion, Saint Pierre, Réunion.ORCID 0000-0002-3276-5919
N CudjoeWindward Islands Research and Education Foundation, True Blue, Grenada.
V Mapp-AlexanderWindward Islands Research and Education Foundation, True Blue, Grenada.ORCID 0000-0003-0642-8414
G MitchellMinistry of Health, St. Georges, Grenada.
C MacphersonWindward Islands Research and Education Foundation, True Blue, Grenada.ORCID 0000-0002-2733-7856
R WaechterWindward Islands Research and Education Foundation, True Blue, Grenada.ORCID 0000-0002-3872-4245
A D LaBeaudDivision of Infectious Disease, Department of Pediatrics, Stanford University, School of Medicine, Stanford, CA, USA.ORCID 0000-0001-8364-6867
Stanford University · USSt. George's University · GDPeuplements végétaux et bioagresseurs en milieu tropical · REWindward Islands Research and Education Foundation · GD

Funding

The child health impacts of overlapping vector-borne diseases in KenyaR01AI102918 · NIAID · STANFORD UNIVERSITY · PI Angelle Desiree LaBeaud · 2013 to 2026
$7.7M
Neurodevelopment and Vector-borne Diseases: Building Research Capacity in the TropicsR21TW010536 · FIC · WINDWARD ISLANDS RESEARCH & ED FDN · PI LABEAUD, ANGELLE DESIREE, WAECHTER, RANDALL · 2016 to 2018
$313k
FIC NIH HHS R21 TW010536Foundation for the National Institutes of Health 1R21TW010536-01NIAID NIH HHS R01 AI102918
6 · The paper itself

Abstract

objectiveTo evaluate pregnancy and neonatal outcomes, disease severity, and mother-to-child transmission of pregnant women with Chikungunya infection (CHIKV).

designRetrospective observational study.

settingGrenada. POPULATION: Women who gave birth during a Chikungunya outbreak between January 2014 and September 2015 were eligible.

methodsThis descriptive study investigated 731 mother-infant pairs who gave birth during a CHIKV outbreak. Women and infants underwent serological testing for CHIKV by ELISA.

main outcome measuresPrimary outcomes: composite pregnancy complication (abruption, vaginal bleeding, preterm labour/cervical incompetence, cesarean delivery for fetal distress/abruption/placental abnormality or delivery for fetal distress) and composite neonatal morbidity.

resultsOf 416 mother-infant pairs, 150 (36%) had CHIKV during pregnancy, 135 (33%) had never had CHIKV, and 131 (31%) had CHIKV outside of pregnancy. Mean duration of joint pain was shorter among women infected during pregnancy (μ = 898 days, σ = 277 days) compared with infections outside of pregnancy (μ = 1064 days, σ = 244 days) (P < 0.0001). Rates of pregnancy complications (RR = 0.76, P = 0.599), intrapartum complications (RR = 1.50, P = 0.633), and neonatal outcomes were otherwise similar. Possible mother-to-child transmission occurred in two (1.3%) mother-infant pairs and two of eight intrapartum infections (25%).

conclusionCHIKV infection during pregnancy may be protective against long-term joint pain sequelae that are often associated with acute CHIKV infection. Infection during pregnancy did not appear to pose a risk for pregnancy complications or neonatal health, but maternal infection just prior to delivery might have increased risk of mother-to-child transmission of CHIKV. TWEETABLE ABSTRACT: Chikungunya infection did not increase risk of pregnancy complications or adverse neonatal outcomes, unless infection was just prior to delivery.

Indexed as

Chikungunya FeverDelivery, ObstetricFetal DistressPregnancy Complications, InfectiousAdultChikungunya virusDisease OutbreaksFemaleGrenadaHumansInfant, NewbornInfectious Disease Transmission, VerticalPregnancyPregnancy OutcomeSerologic TestsSeverity of Illness IndexChikungunyamother-to-child-transmissionneonatal outcomespregnancypregnancy outcomesvertical transmission

Identifiers

PMID33040457
PMCPMC8035284
OpenAlexW3091948700

What OpenQuestion holds

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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.