Evidence map›Paper›PMID 31244714›Full record

ArticleFrontiers in psychology2019

Coach Turnover in Top Professional Brazilian Football Championship: A Multilevel Survival Analysis.

Alexandre B Tozetto, Humberto M Carvalho, Rodolfo S Rosa, Felipe G Mendes, Walan R Silva, Juarez V Nascimento, Michel Milistetd

Abstract read
In one paragraph

Article in Frontiers in psychology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
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  5. Supporting The Mental Health Of Elite-Level Coaches Through Early Intervention.Arthroscopy, sports medicine, and rehabilitation · 2023
    Article
  6. Article
  7. 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.

Alexandre B TozettoDepartment of Physical Education, College of Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
Humberto M CarvalhoDepartment of Physical Education, School of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.
Rodolfo S RosaDepartment of Physical Education, School of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.
Felipe G MendesDepartment of Physical Education, School of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.
Walan R SilvaDepartment of Physical Education, College of Health and Sport Science, Santa Catarina State University, Florianópolis, Brazil.
Juarez V NascimentoDepartment of Physical Education, School of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.
Michel MilistetdDepartment of Physical Education, School of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, we examined the probability of coaches' survival in the top Brazilian professional football championship considering variation across the competitive seasons between 2012 and 2017, considering a multilevel framework. We also considered whether previous coaching experience in the top Brazilian professional football championship would change the probability of coaches' survival across the season. The data considered 4,560 games from the top professional Brazilian football league (Campeonato Brasileiro Série A) between the 2012 and 2017 seasons. At the start of each season, the coach from each team was followed, being recorded at the time the event occurred, i.e., the coach being sacked. A total survival of 120 coaches was considered between the seasons of 2012 and 2017, i.e., 20 coaches at the beginning of each season. Coaches were assigned as novice (no previous experience as head coach in the top Brazilian championship) or experienced (with at least some previous experience as head coach in the top Brazilian championship). Data were available and extracted from the official website of the Brazilian Football Confederation. On average and considering un-pooled observations, the median life of a coach was about 16.5 rounds. Considering variation between 2012 and 2017 seasons, only about 26.3% (95% CI: 18.2-36.1) of the coaches ended a season without being sacked. By mid-season, at round 19, the probability of coaches' survival was 0.42 (95% CI: 0.32-0.53). Variation between season on survival estimates per round was substantial (between-season standard deviation = 0.48, 95% credible intervals: 0.25-0.95; corresponding to an inverse logit = 0.62, 95% CI: 0.56-0.72). There was no substantial variation between novice and experienced coaches' survival probability. The present results expose the vulnerability of the coaching context in Brazilian football, potentially highlighting an excessive emphasis on short-term results to mediate club management decisions.

Indexed as

bayesian methodsemploymentproportional hazards modelssoccerwork performance

Identifiers

PMID31244714
PMCPMC6562306

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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.