Evidence map›Paper›PMID 36417209›Full record

ArticleEpidemiologia (Basel, Switzerland)2020

Stillbirth Risk during the 1918 Influenza Pandemic in Arizona, USA.

Smriti Khare, Sushma Dahal, Ruiyan Luo, Richard Rothenberg, Kenji Mizumoto, Gerardo Chowell

Open access · goldAbstract read
In one paragraph

Article in Epidemiologia (Basel, Switzerland), 2020. 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
0.1field-weighted citation impact, top 52% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  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

6 authors at 2 institutions in 2 countries.

Smriti KhareDepartment of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
Sushma DahalDepartment of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA 30303, USA.ORCID 0000-0003-4991-3110
Ruiyan LuoDepartment of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
Richard RothenbergDepartment of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
Kenji MizumotoGraduate School of Advanced Integrated Studies in Human Survivability, Kyoto University Yoshida-Nakaadachi-cho, Sakyo-ku, Kyoto 606-8306, Japan.ORCID 0000-0002-2748-6560
Gerardo ChowellDepartment of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
Georgia State University · USKyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The 1918 influenza pandemic, the deadliest pandemic on record, affected approximately 1/3rd of the population worldwide. The impact of this pandemic on stillbirth risk has not been studied in depth. In this study, we assessed the stillbirth risk during the 1918 influenza pandemic in Arizona, USA. We carried out a retrospective study using 21,334 birth records for Maricopa County, Arizona, for the period 1915-1925. We conducted logistic regression analyses to assess the effect of that pandemic on stillbirth risk. Though we did not find a statistically significant impact on stillbirth risk during the pandemic, there was a higher risk of stillbirth in July 1919 (42 stillbirths/1000 births), 9 months after the peak pandemic mortality, and a stillbirth risk of 1.42 (95% CI: 1.17, 1.72) in women ≥35 years compared to the women aged <35 years. The risk of stillbirth was lowest if the mother's age was approximately 26 years at the time of birth. We also report peaks in stillbirth risk 9-10 months after the peak pandemic mortality. Our findings add to our current understanding of the link between pandemic influenza and stillbirth risk.

Indexed as

1918–1919 influenzaArizonainfluenza pandemicmaternal agemortalitystillbirth risk

Identifiers

PMID36417209
PMCPMC9620897
OpenAlexW2994708041

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.