Evidence map›Paper›PMID 40797191›Full record

ArticleBMC public health2025

What factors are associated with new social isolation years after the great East Japan Earthquake?: findings from the TMM CommCohort study.

Yuka Kotozaki, Kozo Tanno, Kotaro Otsuka, Ryohei Sasaki, Makoto Sasaki

Abstract read
In one paragraph

Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
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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

5 authors.

Yuka KotozakiIwate Tohoku Medical Megabank Organization, Iwate Medical University, Yahaba, Japan. kotoyuka@iwate-med.ac.jp.
Kozo TannoIwate Tohoku Medical Megabank Organization, Iwate Medical University, Yahaba, Japan.
Kotaro OtsukaIwate Tohoku Medical Megabank Organization, Iwate Medical University, Yahaba, Japan.
Ryohei SasakiDivision of Physical Education, Department of Human Sciences, Iwate Medical University Center for Liberal Arts and Sciences, Yahaba, Japan.
Makoto SasakiIwate Tohoku Medical Megabank Organization, Iwate Medical University, Yahaba, Japan.

Funding

the Reconstruction Agency, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), and the Japan Agency for Medical Research and Development (AMED) JP21tm0124006
6 · The paper itself

Abstract

backgroundThe effects of disaster experiences on social isolation and related factors remain unclear. Using longitudinal data, this study aimed to identify new social isolation and its associated factors after the Great East Japan Earthquake (GEJE), which occurred on March 11, 2011.

methodsWe analyzed longitudinal data from 12,795 participants who responded to self-report questionnaires, utilizing the Lubben Social Network Scale-6 (LSNS-6). Participants included 4,450 men and 8,345 women; the sex ratio of the analytic sample was broadly consistent with that of the study population at baseline. Baseline data were collected between fiscal years (FY) 2013 and 2015, and follow-up data were collected between FY2017 and FY2019. Social isolation was defined as a score < 12 on the LSNS-6. Based on their level of social isolation in the second survey, participants were categorized into two groups: not socially isolated and newly socially isolated. To examine factors associated with new social isolation, we used logistic regression analysis to calculate multivariate-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the newly socially isolated group versus the not socially isolated group by sex.

resultsNew social isolation was associated with several lifestyle and psychosocial factors, exhibiting differences between men and women. Among men, factors associated with new social isolation were not currently smoking among those without house damage, living alone among those with house damage, and no exercise habits among those who experienced the death of family members due to GEJE. Among women who lost family members due to GEJE, insomnia was associated with new social isolation.

conclusionThe occurrence of new social isolation years after the GEJE and its associated factors varied by sex and the presence of GEJE-related damages. To prevent new social isolation in the aftermath of a large-scale natural disaster, it is crucial to consider sex-specific factors contributing to social isolation.

Indexed as

EarthquakesSocial IsolationAdultAgedFemaleHumansJapanLongitudinal StudiesMaleMiddle AgedSurveys and QuestionnairesCommunity-based cohort studyDamage situationRelated factorsSocial isolation

Identifiers

PMID40797191
PMCPMC12341258

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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.