Base rate of post-concussion symptoms among normal people and its neuropsychological correlates

Author:

Chan Raymond CK1

Affiliation:

1. Department of Psychiatry, University of Hong Kong, Hong Kong, China

Abstract

Objective: To explore the base rate of symptoms similar to those of post-concussion symptoms (PCS) among a group of participants without head injury. The effect of subjective complaints upon cognitive functioning was also examined. Design: A cross-sectional study. Participants: A total of 85 participants without head injury, other identifiable neurological diseases or psychiatric diseases were recruited. Outcome measures: These included Rivermead Post-concussion Symptoms Checklist, Cognitive Failures Questionnaire, Colour Trails Test, Stroop Word-Colour Test, Paced Auditory Serial Addition Test, Symbol Digits Modality Test, Word Fluency Test, Design Fluency Test, Digits Forward and Backward Span Test, and Modified Six Elements Test. Results: A relatively high proportion of the participants reported symptoms similar to those of patients with PCS. These included longer time to think (65.9%), forgetfulness (58.9%), poor concentration (58.9%), fatigue easily (53.5%), and sleep disturbances (50.6%). Gender effect was not significant for either the individual item or the total score of the Rivermead Post-concussion Symptoms Checklist. Moreover, there was no difference found between low symptom reporters and high symptom reporters in terms of attention, working memory, mental fluency, and strategy allocation. Conclusion: The base rates of symptoms were consistent with previous studies among the nonclinical groups. However, persons reporting a high score of concussion-like symptoms did not perform less well than those reporting a low score of symptoms in attention, working memory, mental fluency and strategy allocation.

Publisher

SAGE Publications

Subject

Rehabilitation,Physical Therapy, Sports Therapy and Rehabilitation

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