articleMedicine & Science in Sports & ExerciseMay 31, 2007Closed access

Recurrent Concussion and Risk of Depression in Retired Professional Football Players

University of North Carolina at Chapel Hill · Orthopedic One · +8 more institutions

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Abstract

Methods

A general health questionnaire, including information about prior injuries, the SF-36 (Short Form 36), and other markers for depression, was completed by 2552 retired professional football players with an average age of 53.8 (+/-13.4) yr and an average professional football-playing career of 6.6 (+/-3.6) yr. A second questionnaire focusing on mild cognitive impairment (MCI)-related issues was completed by a subset of 758 retired professional football players (50 yr and older).

Results

Two hundred sixty-nine (11.1%) of all respondents reported having prior or current diagnosis of clinical depression. There was an association between recurrent concussion and diagnosis of lifetime depression (chi2=71.21, df=2, P

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