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Football professionals die more often of neuro and cardio problems than those in baseball – May 2019

Mortality Among Professional American-Style Football Players and Professional American Baseball Players

JAMA Network Open. 2019;2(5):e194223. doi:10.1001/jamanetworkopen.2019.4223

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Key Points

  • Question What are the long-term health risks of National Football League (NFL) players compared with Major League Baseball (MLB) players, another group of elite athletes?
  • Findings In this cohort study of 3419 NFL and 2708 MLB players, NFL players had significantly higher mortality rates from all causes, cardiovascular diseases, and neurodegenerative diseases compared with MLB players.
  • Meaning This study found that NFL players had a higher rate of mortality than MLB players, which may be associated with aspects of playing in professional American-style football.

Importance Studies of American-style football players have suggested lower overall mortality rates compared with general populations, but with possibly increased neurodegenerative mortality. However, comparisons with general populations can introduce bias. This study compared mortality between US National Football League (NFL) and US Major League Baseball (MLB) players, a more appropriate comparison group of professional athletes.

Objective To compare all-cause and cause-specific mortality between NFL and MLB players.

Design, Setting, and Participants In this retrospective cohort study, the setting was US mortality from January 1, 1979, through December 31, 2013. The dates of analysis were January 2016 to April 2019. Participants were 3419 NFL and 2708 MLB players with at least 5 playing seasons.

Exposures Participation in the NFL compared with the MLB.

Main Outcomes and Measures Vital status and causes of death from the National Death Index from 1979 through 2013 were obtained. Cox proportional hazards regression models using age as the timescale were used to calculate hazard ratios (HRs) and 95% CIs to examine all-cause and cause-specific mortality among NFL players compared with MLB players, adjusted for race and decade of birth.

Results By the end of follow-up, there were 517 deaths (mean [SD] age, 59.6 [13.2] years) in the NFL cohort and 431 deaths (mean [SD] age, 66.7 [12.3] years) in the MLB cohort. Cardiovascular and neurodegenerative conditions, respectively, were noted as underlying or contributing causes in 498 and 39 deaths in the NFL and 225 and 16 deaths in the MLB. Compared with MLB players, NFL players had significantly elevated rates of all-cause (HR, 1.26; 95% CI, 1.10-1.44), cardiovascular disease (HR, 2.40; 95% CI, 2.03-2.84), and neurodegenerative disease (HR, 2.99; 95% CI, 1.64-5.45) mortality. Comparing hypothetical populations of 1000 NFL and 1000 MLB players followed up to age 75 years, there would be an excess 21 all-cause deaths among NFL players, as well as 77 and 11 more deaths with underlying or contributing causes that included cardiovascular and neurodegenerative conditions, respectively.

Conclusions and Relevance This study found that NFL players had elevated all-cause, cardiovascular, and neurodegenerative mortality rates compared with MLB players, although the absolute number of excess neurodegenerative deaths was still small. Factors that vary across these sports (eg, body habitus and head trauma) as opposed to those common across sports (eg, physical activity) could underlie the differences.

Note: Body habitus = The physique or body build

Created by admin. Last Modification: Wednesday June 5, 2019 23:26:00 GMT-0000 by admin. (Version 11)

Attached files

ID Name Comment Uploaded Size Downloads
12047 Cardio.jpg admin 04 Jun, 2019 24.96 Kb 469
12046 Neuro.jpg admin 04 Jun, 2019 23.97 Kb 484
12045 NFL mortality.pdf admin 04 Jun, 2019 1.05 Mb 485