Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players

Objective: Rugby league is an international full-contact sport, with frequent concussive injuries. Participation in other full-contact sports such as American football has been considered to be a risk factor for neuropsychiatric sequelae later-in-life, but little research has addressed the mental an...

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Main Authors: Ryan Van Patten, Grant L. Iverson, Douglas P. Terry, Christopher R. Levi, Andrew J. Gardner
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-10-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2021.676762/full
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author Ryan Van Patten
Ryan Van Patten
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Douglas P. Terry
Douglas P. Terry
Douglas P. Terry
Douglas P. Terry
Christopher R. Levi
Christopher R. Levi
Christopher R. Levi
Christopher R. Levi
Andrew J. Gardner
Andrew J. Gardner
author_facet Ryan Van Patten
Ryan Van Patten
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Douglas P. Terry
Douglas P. Terry
Douglas P. Terry
Douglas P. Terry
Christopher R. Levi
Christopher R. Levi
Christopher R. Levi
Christopher R. Levi
Andrew J. Gardner
Andrew J. Gardner
author_sort Ryan Van Patten
collection DOAJ
description Objective: Rugby league is an international full-contact sport, with frequent concussive injuries. Participation in other full-contact sports such as American football has been considered to be a risk factor for neuropsychiatric sequelae later-in-life, but little research has addressed the mental and cognitive health of retired professional rugby league players. We examined predictors and correlates of perceived (self-reported) cognitive decline in retired National Rugby League (NRL) players.Methods: Participants were 133 retired male elite level rugby league players in Australia. Participants completed clinical interviews, neuropsychological testing, and self-report measures. The Informant Questionnaire on Cognitive Decline in the Elderly, self-report (IQCODE-Self), measured perceived cognitive decline.Results: The median age of the sample was 55.0 (M = 53.1, SD = 13.9, range = 30–89) and the median years of education completed was 12.0 (M = 11.9, SD = 2.6, range = 7–18). The retired players reported a median of 15.0 total lifetime concussions (M = 28.0, SD = 36.6, range = 0–200). The mean IQCODE-Self score was 3.2 (SD = 0.5; Range = 1.3–5.0); 10/133 (7.5%) and 38/133 (28.6%) scored above conservative and liberal cutoffs for cognitive decline on the IQCODE-Self, respectively. Perceived cognitive decline was positively correlated with current depressive symptoms, negatively correlated with years of professional sport exposure and resilience, and unrelated to objective cognition and number of self-reported concussions. A multiple regression model with perceived cognitive decline regressed on age, concussion history, professional rugby league exposure, depression, resilience, objective cognitive functioning, daytime sleepiness, and pain severity showed depression as the only significant predictor.Conclusion: This is the first large study examining subjectively experienced cognitive decline in retired professional rugby league players. Similar to studies from the general population and specialty clinics, no relationship was found between objective cognitive test performance and perceived cognitive decline. Depressive symptoms emerged as the strongest predictor of perceived cognitive decline, suggesting that subjective reports of worsening cognition in retired elite rugby league players might reflect psychological distress rather than current cognitive impairment.
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spelling doaj.art-575d05df27294b43b8333170fa4d700b2022-12-21T19:29:43ZengFrontiers Media S.A.Frontiers in Neurology1664-22952021-10-011210.3389/fneur.2021.676762676762Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League PlayersRyan Van Patten0Ryan Van Patten1Grant L. Iverson2Grant L. Iverson3Grant L. Iverson4Grant L. Iverson5Grant L. Iverson6Douglas P. Terry7Douglas P. Terry8Douglas P. Terry9Douglas P. Terry10Christopher R. Levi11Christopher R. Levi12Christopher R. Levi13Christopher R. Levi14Andrew J. Gardner15Andrew J. Gardner16Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, United StatesSpaulding Rehabilitation Hospital, Charlestown, MA, United StatesDepartment of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, United StatesSpaulding Rehabilitation Hospital, Charlestown, MA, United StatesSpaulding Research Institute, Charlestown, MA, United StatesMassGeneral Hospital for Children Sports Concussion Program, Boston, MA, United StatesHome Base, A Red Sox Foundation and Massachusetts General Hospital Program, Charlestown, MA, United StatesDepartment of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, United StatesSpaulding Rehabilitation Hospital, Charlestown, MA, United StatesMassGeneral Hospital for Children Sports Concussion Program, Boston, MA, United StatesHome Base, A Red Sox Foundation and Massachusetts General Hospital Program, Charlestown, MA, United StatesSydney Partnership for Health, Education, Research and Enterprise (SPHERE), Liverpool, NSW, AustraliaSchool of Medicine, University of New South Wales, Randwick, NSW, AustraliaPriority Research Centre for Stroke and Brain Injury, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, AustraliaHunter New England Local Health District Sports Concussion Program, Waratah, NSW, AustraliaPriority Research Centre for Stroke and Brain Injury, School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, AustraliaHunter New England Local Health District Sports Concussion Program, Waratah, NSW, AustraliaObjective: Rugby league is an international full-contact sport, with frequent concussive injuries. Participation in other full-contact sports such as American football has been considered to be a risk factor for neuropsychiatric sequelae later-in-life, but little research has addressed the mental and cognitive health of retired professional rugby league players. We examined predictors and correlates of perceived (self-reported) cognitive decline in retired National Rugby League (NRL) players.Methods: Participants were 133 retired male elite level rugby league players in Australia. Participants completed clinical interviews, neuropsychological testing, and self-report measures. The Informant Questionnaire on Cognitive Decline in the Elderly, self-report (IQCODE-Self), measured perceived cognitive decline.Results: The median age of the sample was 55.0 (M = 53.1, SD = 13.9, range = 30–89) and the median years of education completed was 12.0 (M = 11.9, SD = 2.6, range = 7–18). The retired players reported a median of 15.0 total lifetime concussions (M = 28.0, SD = 36.6, range = 0–200). The mean IQCODE-Self score was 3.2 (SD = 0.5; Range = 1.3–5.0); 10/133 (7.5%) and 38/133 (28.6%) scored above conservative and liberal cutoffs for cognitive decline on the IQCODE-Self, respectively. Perceived cognitive decline was positively correlated with current depressive symptoms, negatively correlated with years of professional sport exposure and resilience, and unrelated to objective cognition and number of self-reported concussions. A multiple regression model with perceived cognitive decline regressed on age, concussion history, professional rugby league exposure, depression, resilience, objective cognitive functioning, daytime sleepiness, and pain severity showed depression as the only significant predictor.Conclusion: This is the first large study examining subjectively experienced cognitive decline in retired professional rugby league players. Similar to studies from the general population and specialty clinics, no relationship was found between objective cognitive test performance and perceived cognitive decline. Depressive symptoms emerged as the strongest predictor of perceived cognitive decline, suggesting that subjective reports of worsening cognition in retired elite rugby league players might reflect psychological distress rather than current cognitive impairment.https://www.frontiersin.org/articles/10.3389/fneur.2021.676762/fullretired athletessportsbrain injurycognitionsubjective cognitive declinemental health
spellingShingle Ryan Van Patten
Ryan Van Patten
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Grant L. Iverson
Douglas P. Terry
Douglas P. Terry
Douglas P. Terry
Douglas P. Terry
Christopher R. Levi
Christopher R. Levi
Christopher R. Levi
Christopher R. Levi
Andrew J. Gardner
Andrew J. Gardner
Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players
Frontiers in Neurology
retired athletes
sports
brain injury
cognition
subjective cognitive decline
mental health
title Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players
title_full Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players
title_fullStr Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players
title_full_unstemmed Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players
title_short Predictors and Correlates of Perceived Cognitive Decline in Retired Professional Rugby League Players
title_sort predictors and correlates of perceived cognitive decline in retired professional rugby league players
topic retired athletes
sports
brain injury
cognition
subjective cognitive decline
mental health
url https://www.frontiersin.org/articles/10.3389/fneur.2021.676762/full
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