Evidence map›Paper›PMID 33520254›Full record

ArticleBMJ open sport & exercise medicine2021

Mortality of Japanese Olympic athletes in 1964 Tokyo Olympic Games.

Taro Takeuchi, Yuri Kitamura, Soya Ishizuka, Sachiko Yamada, Hiroshi Aono, Takashi Kawahara, Tomotaka Sobue

Abstract read
In one paragraph

Article in BMJ open sport & exercise medicine, 2021. 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

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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

7 authors.

Taro TakeuchiDepartment of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan.ORCID 0000-0002-9900-9608
Yuri KitamuraDepartment of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan.ORCID 0000-0001-7665-3524
Soya IshizukaSport Sciences Laboratory, Japan Sport Association, Shinjuku-ku, Japan.
Sachiko YamadaSport Sciences Laboratory, Japan Sport Association, Shinjuku-ku, Japan.
Hiroshi AonoSport Sciences Laboratory, Japan Sport Association, Shinjuku-ku, Japan.
Takashi KawaharaSport Medicine and Science Research Committee, Japan Sport Association, Shinjuku-ku, Japan.
Tomotaka SobueDepartment of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare the mortality of Japanese athletes in the 1964 Tokyo Olympic Games with that of the Japanese population, and to elucidate factors associated with their mortality.

methodsWe obtained from the Japan Sport Association study subjects' biographical information, information on lifestyles and medical data. Missing data were obtained from online databases. Standardised mortality ratio (SMR) was calculated to compare athletes' mortality with the Japanese population. Cox proportional hazards model was applied to estimate the HR for each category of body mass index (BMI), smoking history and handgrip strength. This analysis was limited to male athletes due to the small number of female athletes.

resultsAmong 342 (283 men, 59 women) athletes, deaths were confirmed for 70 (64 men, 6 women) athletes between September 1964 and December 2017. Total person years was 15 974.8, and the SMR was 0.64 (95% CI 0.50 to 0.81). Multivariate analysis performed on 181 male athletes. Mortality was significantly higher for BMI≥25 kg/m

conclusionJapanese athletes in the 1964 Tokyo Olympic Games lived longer than the Japanese population. BMI≥25 kg/m

Indexed as

epidemiologyhealth promotionolympics

Identifiers

PMID33520254
PMCPMC7816928

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