Evidence map›Paper›PMID 35066387›Full record

ArticleJournal of infection and public health2022

Impact of COVID-19 on pregnant women in South Korea: Focusing on prevalence, severity, and clinical outcomes.

So Hee Kim, Yeonmi Choi, Dokyoung Lee, Hyejin Lee, Ji Hoi Kim, Eun Saem Choi, Young Mi Jung, Jinwoo Lee, Pyoeng Gyun Choe, Ji Yoon Lee and 6 more

Open access · goldAbstract read
In one paragraph

Article in Journal of infection and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 15 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

16 authors at 4 institutions in 1 country.

So Hee KimDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Yeonmi ChoiHIRA Research Institute, Health Insurance Review and Assessment Service, 60 Hyeoksin-ro, Wonju-si, Gangwon-do 26465, South Korea.
Dokyoung LeeHIRA Research Institute, Health Insurance Review and Assessment Service, 60 Hyeoksin-ro, Wonju-si, Gangwon-do 26465, South Korea.
Hyejin LeeDepartment of Family Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeomggi-do 13620, South Korea.
Ji Hoi KimDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Eun Saem ChoiDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Young Mi JungDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Jinwoo LeeDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Pyoeng Gyun ChoeDepartment of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Ji Yoon LeeHIRA Research Institute, Health Insurance Review and Assessment Service, 60 Hyeoksin-ro, Wonju-si, Gangwon-do 26465, South Korea.
Youngme DoHIRA Research Institute, Health Insurance Review and Assessment Service, 60 Hyeoksin-ro, Wonju-si, Gangwon-do 26465, South Korea.
Chan-Wook ParkDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Joong Shin ParkDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Jong Kwan JunDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Seung Mi LeeDepartment of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.
Jin Yong LeeHIRA Research Institute, Health Insurance Review and Assessment Service, 60 Hyeoksin-ro, Wonju-si, Gangwon-do 26465, South Korea; Public Healthcare Center, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea; Department of Health Policy and Management, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea. Electronic address: jylee2000@gmail.com.
Seoul National University · KRHealth Insurance Review and Assessment Service · KRSeoul National University Bundang Hospital · KRSeoul National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn the era of coronavirus disease 2019 (COVID-19) pandemic, there is a paucity of information regarding actual prevalence of COVID-19 in pregnant women compared to non-pregnant women. The purpose of this study was to investigate the prevalence of COVID-19 infection and clinical outcome in pregnant women and non-pregnant women.

methodsThis is a nationwide cross-sectional study in South Korea between January 2020 and February 2021 using the claim database. The primary outcome was the prevalence of COVID-19 in pregnant women, and the secondary outcome was the occurrence of severe COVID-19 illness among infected patients. Severity of COVID-19 was classified into four categories according to WHO ordinal scale.

resultsThe prevalence of COVID-19 infection was lower in pregnant women than non-pregnant women aged 20-44 (0·02% vs. 0.14%, p < 0.0001). However, among COVID-19 positive women at age 20-44, pregnant women was at higher risk of oxygen therapy after hospitalization (score 4 in WHO ordinal scale: 6.4% vs. 1.6%, p < 0.05). There were no deaths or hospitalized severe disease in pregnant women with COVID-19, although the majority of them (96·2%) were admitted to hospital. On the other hand, 42·3% of non-pregnant women at 20-44 age were admitted to hospital and 0.04% of them died and 0.1% had hospitalized severe disease.

conclusionsThe prevalence of COVID-19 infection in pregnant women was lower than non-pregnant women in Korea, resulting in relatively small cases of fatality. It has implications that public health policy, such as an effective response to COVID-19 and a powerful preemptive strategy for pregnant women, can lower risk of COVID-19 infection and better clinical outcomes in pregnant women with COVID-19.

Indexed as

COVID-19Pregnancy Complications, InfectiousAdultCross-Sectional StudiesFemaleHumansPregnancyPregnancy OutcomePregnant PeoplePrevalenceSARS-CoV-2Young AdultCOVID-19PregnancyPrevalenceSARS-CoV-2Severity

Identifiers

PMID35066387
PMCPMC8761582
OpenAlexW4206023911

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.