Evidence map›Paper›PMID 29093360›Full record

ArticleJournal of epidemiology2018

Intensity of Leisure-Time Exercise and Risk of Depressive Symptoms Among Japanese Workers: A Cohort Study.

Keisuke Kuwahara, Toru Honda, Tohru Nakagawa, Shuichiro Yamamoto, Takeshi Hayashi, Tetsuya Mizoue

Open access · goldAbstract read
In one paragraph

Article in Journal of epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Exercise and Schizophrenia.Advances in experimental medicine and biology · 2020
    Review
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.

Keisuke KuwaharaDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine.ORCID http://orcid.org/0000-0002-7503-1333
Toru HondaHitachi, Ltd.
Tohru NakagawaHitachi, Ltd.
Shuichiro YamamotoHitachi, Ltd.
Takeshi HayashiHitachi, Ltd.
Tetsuya MizoueDepartment of Epidemiology and Prevention, Bureau of International Health Cooperation, National Center for Global Health and Medicine.
Hitachi (Japan) · JPNational Center for Global Health and Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundData on the effect of physical activity intensity on depression is scarce. We investigated the prospective association between intensity of leisure-time exercise and risk of depressive symptoms among Japanese workers.

methodsThe participants were 29,052 employees (24,653 men and 4,399 women) aged 20 to 64 years without psychiatric disease including depressive symptoms at health checkup in 2006-2007 and were followed up until 2014-2015. Details of leisure-time exercise were ascertained via a questionnaire. Depressive states were assessed using a 13-item questionnaire. Multivariable-adjusted hazard ratio of depressive symptoms was estimated using Cox regression analysis.

resultsDuring a mean follow-up of 5.8 years with 168,203 person-years, 6,847 workers developed depressive symptoms. Compared with workers who engaged in no exercise during leisure-time (0 MET-hours per week), hazard ratios (95% confidence intervals) associated with >0 to <7.5, 7.5 to <15.0, and ≥15.0 MET-hours of leisure-time exercise were 0.88 (0.82-0.94), 0.85 (0.76-0.94), and 0.78 (0.68-0.88) among workers who engaged in moderate-intensity exercise alone; 0.93 (0.82-1.06), 0.82 (0.68-0.98), and 0.83 (0.71-0.98) among workers who engaged in vigorous-intensity exercise alone; and 0.96 (0.80-1.15), 0.80 (0.67-0.95), and 0.76 (0.66-0.87) among workers who engaged in both moderate- and vigorous-intensity exercise with adjustment for age, sex, lifestyles, work-related and socioeconomic factors, and body mass index. Additional adjustment for baseline depression score attenuated the inverse association, especially among those who engaged in moderate-intensity exercise alone.

conclusionsThe results suggest that vigorous-intensity exercise alone or vigorous-intensity combined with moderate-intensity exercise would prevent depressive symptoms among Japanese workers.

Indexed as

AdultCohort StudiesDepressionEmploymentExerciseFemaleHumansJapanLeisure ActivitiesMaleMiddle AgedProspective StudiesRiskYoung Adultcohort studiesdepressive symptomsintensityphysical activityprevention

Identifiers

PMID29093360
PMCPMC5792232
OpenAlexW2766773019

What OpenQuestion holds

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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.