Evidence map›Paper›PMID 29232939›Full record

ArticleThe Korean journal of internal medicine2019

Clinical and economic analysis of the 2009 H1N1 influenza pandemic among pregnant Korean women.

Won Suk Choi, Min Joo Choi, Ji Yoon Noh, Joon Young Song, Woo Joo Kim, Dae Won Park, Jacob Lee, Yu Bin Seo, Ji Hyeon Baek, Sooran Choi and 1 more

Abstract readMulticenter Study
In one paragraph

Article in The Korean journal of internal medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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.

Won Suk ChoiDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Min Joo ChoiDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Ji Yoon NohDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Joon Young SongDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Woo Joo KimDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Dae Won ParkDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Jacob LeeDepartment of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Yu Bin SeoDepartment of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea.
Ji Hyeon BaekDepartment of Internal Medicine, Inha University College of Medicine, Incheon, Korea.
Sooran ChoiDepartment of Obstetrics and Gynecology, Inha University College of Medicine, Incheon, Korea.
Hee Jin CheongDepartment of Internal Medicine, Korea University College of Medicine, Seoul, Korea.

Funding

Ministry of Health and Welfare A103001
6 · The paper itself

Abstract

BACKGROUND/

aimsUnlike Western countries, the 2009 pandemic influenza infection among pregnant women was reported as mild in a previous interim study in South Korea. However, several mortalities were reported thereafter, suggesting that nationwide data were lacking.

methodsThis case-control study covers the entire 2009 pandemic inf luenza period, from May 2009 to February 2010. The clinical and economic data of pregnant (case) and age-matched non-pregnant (control) women with influenza A (H1N1) pdm09 virus (H1N1pdm09) infection were retrospectively collected from nine hospitals in South Korea.

resultsA total of 130 pregnant women with H1N1pdm09 infection were identified. The mean age of the pregnant women was 31.1 years (range, 19 to 41) and mean gestational age was 18.4 weeks (range, 3 to 40). Both case and control groups were similar in terms of age (p = 0.43) and comorbidities (p = 0.18). The overall rate of complications was comparable between the two groups (p = 0.648). However, mortality was reported only among the cases, so mean economic per capita burden is estimated to be higher for pregnant women compared to the control (4,821,992 Korean won [KRW] vs. 351,233 KRW, p = 0.31). Obstetric complications were observed in 12 cases, including preterm labor (n = 7), low birth-weight (n = 3), miscarriage (n = 1), stillbirth (n = 1), and cleft lip (n = 1).

conclusionAlthough statistically insignificant, the detrimental impact of influenza A H1N1pdm09 on pregnancy can be serious in some complicated cases in South Korea. Thus, the strong recommendation of influenza vaccination should be maintained for pregnant women as a high priority.

Indexed as

PandemicsAdultCost of IllnessFemaleHealth Care CostsHealth StatusHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanPregnancyPregnancy ComplicationsPregnancy OutcomeRepublic of KoreaRetrospective StudiesRisk AssessmentRisk FactorsH1N1Influenza, humanPandemicsPregnancy

Identifiers

PMID29232939
PMCPMC6718764

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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.