Evidence map›Paper›PMID 35569835›Full record

ArticleBMJ global health2022

Changes in marriage, divorce and births during the COVID-19 pandemic in Japan.

Cyrus Ghaznavi, Takayuki Kawashima, Yuta Tanoue, Daisuke Yoneoka, Koji Makiyama, Haruka Sakamoto, Peter Ueda, Akifumi Eguchi, Shuhei Nomura

Open access · goldAbstract read
In one paragraph

Article in BMJ global health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
27.5field-weighted citation impact, top 1% 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

20 citing papers in PubMed, 56 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

9 authors at 6 institutions in 3 countries.

Cyrus GhaznaviDepartment of Health Policy and Management, Keio University, Tokyo, Japan cghaznavi@keio.jp.ORCID 0000-0002-5942-1948
Takayuki KawashimaDepartment of Health Policy and Management, Keio University, Tokyo, Japan.
Yuta TanoueDepartment of Health Policy and Management, Keio University, Tokyo, Japan.
Daisuke YoneokaDepartment of Health Policy and Management, Keio University, Tokyo, Japan.ORCID 0000-0002-3525-5092
Koji MakiyamaHOXO-M, Tokyo, Japan.
Haruka SakamotoDepartment of Global Health Policy, The University of Tokyo, Tokyo, Japan.ORCID 0000-0001-9003-7402
Peter UedaDepartment of Global Health Policy, The University of Tokyo, Tokyo, Japan.
Akifumi EguchiDepartment of Health Policy and Management, Keio University, Tokyo, Japan.
Shuhei NomuraDepartment of Health Policy and Management, Keio University, Tokyo, Japan.ORCID 0000-0002-2963-7297
Keio University · JPChiba University · JPKarolinska Institutet · SETokyo Institute of Technology · JPTokyo Women's Medical University · JPWaseda University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMarriage, divorce and fertility are declining in Japan. There is concern that the COVID-19 pandemic may have accelerated the decrease in marriages and births while increasing the number of divorces. Changes in partnership behaviours and fertility have significant implications for mental health, well-being and population demographics.

methodsJapanese vital statistical data were collected for December 2011-May 2021. We used the Farrington algorithm on the daily numbers of marriages, divorces and births (per month) in order to determine whether any given month between January 2017 and May 2021 had a significant excess or deficit. Analyses were conducted at the national and regional levels.

resultsDuring the pandemic, significant deficits in the national number of marriages were noted in January 2020, April 2020, May 2020, July 2020, September 2020 and April 2021. Regional marriage patterns reflected national trends. Divorces were noted to be in deficit during April 2020, May 2020 and May 2021 at the country level. Regional analyses mirrored national divorce trends with the exception of Shikoku, which showed no deficits during the pandemic. Significant deficits in the number of total births were noted in December 2020, January 2021 and February 2021. Regionally, birth deficits were concentrated in Chubu, Kansai and Kanto. After the start of the pandemic, no significant excesses in marriages, divorces or births were noted at the national or regional level.

conclusionsMarriages and divorces declined during the pandemic in Japan, especially during state of emergency declarations. There were decreased births between December 2020 and February 2021, approximately 8-10 months after the first state of emergency, suggesting that couples altered their pregnancy intention in response to the pandemic. Metropolitan regions were more affected by the pandemic than their less metropolitan counterparts.

Indexed as

COVID-19DivorceHumansJapanMarriagePandemicsCOVID-19EpidemiologyHealth policyPublic Health

Identifiers

PMID35569835
PMCPMC9108437
OpenAlexW4280624574

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.