Evidence map›Paper›PMID 32537241›Full record

ArticleBMJ open sport & exercise medicine2020

Estimation of injury costs: financial damage of English Premier League teams' underachievement due to injuries.

Eyal Eliakim, Elia Morgulev, Ronnie Lidor, Yoav Meckel

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Article in BMJ open sport & exercise medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 55 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 4 pooled it
–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

55 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Eyal EliakimPhysical Education, The Academic College at Wingate, Department of Physical Education, Netanya, Israel.
Elia MorgulevPhysical Education, Kaye Academic College of Education, Beer-Sheva, Israel.ORCID 0000-0002-1669-4006
Ronnie LidorPhysical Education, The Academic College at Wingate, Department of Physical Education, Netanya, Israel.
Yoav MeckelPhysical Education, The Academic College at Wingate, Department of Physical Education, Netanya, Israel.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn individual sports, the effect that injuries have on an athlete's performance, success and financial profit is implicit. In contrast, the effect of a single player's injury or one player's absence in team sports is much more difficult to quantify, both from the performance perspective and the financial perspective.

objectivesIn this study, we attempted to estimate the effect of injuries on the performance of football teams from the English Premier League (EPL), and the financial implications derived from this effect.

methodsOur analysis is based on data regarding game results, injuries and estimations of the players' financial value for the 2012-2013 through the 2016-2017 seasons.

resultsWe found a statistically significant relationship (r=-0.46, 95% CI -0.6 to -0.28, p=0.001) between the number of days out due to injuries suffered by team members during a season and the place difference between their actual and expected finish in the EPL table (according to overall player value). Moreover, we can interpolate that approximately 136 days out due to injury causes a team the loss of one league point, and that approximately 271 days out due to injury costs a team one place in the table. This interpolation formula is used as a heuristic model, and given the relationship specified above accounts for a significant portion of the variance in league placement (21%), the remaining variance is related to other factors. Calculating the costs of wage bills and prize money, we estimate that an EPL team loses an average of £45 million sterling due to injury-related decrement in performance per season.

conclusionProfessional football clubs have a strong economic incentive to invest in injury prevention and rehabilitation programmes.

Indexed as

footballinjuriespreventionsoccer

Identifiers

PMID32537241
PMCPMC7247414

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Registered trials

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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.