Evidence map›Paper›PMID 32206340›Full record

ArticleBMJ open sport & exercise medicine2019

Mortality of Japanese Olympic athletes: 1952-2017 cohort study.

Taro Takeuchi, Yuri Kitamura, Junya Sado, Satoshi Hattori, Yumiko Kanemura, Yoshihiko Naito, Kohei Nakajima, Toru Okuwaki, Ken Nakata, Takashi Kawahara and 1 more

Abstract read
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Article in BMJ open sport & exercise medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

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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

11 authors.

Taro TakeuchiDepartment of Social Medicine, Osaka University, Suita, Japan.ORCID 0000-0002-9900-9608
Yuri KitamuraDepartment of Social Medicine, Osaka University, Suita, Japan.
Junya SadoDepartment of Health and Sports Sciences, Osaka University, Suita, Japan.
Satoshi HattoriDepartment of Integrated Medicine, Osaka University, Suita, Japan.
Yumiko KanemuraDepartment of Food Science and Nutrition, Mukogawa Women's University, Nishinomiya, Japan.
Yoshihiko NaitoDepartment of Food Science and Nutrition, Mukogawa Women's University, Nishinomiya, Japan.
Kohei NakajimaJapan Institute of Sports Sciences, Kita-ku, Japan.
Toru OkuwakiJapan Institute of Sports Sciences, Kita-ku, Japan.
Ken NakataDepartment of Health and Sports Sciences, Osaka University, Suita, Japan.
Takashi KawaharaJapan Institute of Sports Sciences, Kita-ku, Japan.
Tomotaka SobueDepartment of Social Medicine, Osaka University, Suita, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo evaluate mortality among Japanese Olympic athletes compared with the general population and also evaluate their mortality based on total number of Olympics participation and intensity of sports disciplines.

methodsInformation on biography, vital status, date of birth, date of death and latest follow-up date on Japanese Olympians was retrieved from six online databases and compared. Standardised mortality ratio (SMR) was estimated according to observation periods and years from last participation in the Olympics. To further evaluate the association between mortality and total number of Olympics participation/intensity of sports disciplines within the study population, rate ratios (RRs) adjusted by sex, observation period and attained age group were estimated by a Poisson regression model.

resultsA total of 3381 Olympians were included in the analysis. The total person years was 94 076.82. The deaths of 153 (4.53%) Olympians were confirmed, and the overall SMR was 0.29 (95% CI, 0.25 to 0.34). SMRs categorised by years from last participation did not differ significantly. Higher mortality was observed among those who participated in the Olympics twice (RR: 1.52; 95% CI, 1.04 to 2.23) and three times or more (RR: 1.87; 95% CI, 1.08 to 3.25) compared with those who participated just once. Compared with combination of low static and low dynamic intensity category, higher mortality was observed in most combinations of middle-intensity or high-intensity categories.

conclusionJapanese Olympians lived longer than the general population. More frequent participation in the Olympics and higher intensity of sports disciplines were associated with higher mortality.

Indexed as

athleteepidemiologylongevityolympics

Identifiers

PMID32206340
PMCPMC7078660

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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.