PMID- 36250029 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221019 IS - 2325-9671 (Print) IS - 2325-9671 (Electronic) IS - 2325-9671 (Linking) VI - 10 IP - 10 DP - 2022 Oct TI - Responsiveness of the Post-Concussion Symptom Scale to Monitor Clinical Recovery After Concussion or Mild Traumatic Brain Injury. PG - 23259671221127049 LID - 10.1177/23259671221127049 [doi] LID - 23259671221127049 AB - BACKGROUND: The Post-Concussion Symptom Scale (PCSS) is used to assess the number and intensity of symptoms after a concussion/mild traumatic brain injury. However, its responsiveness to monitor clinical recovery has yet to be determined. PURPOSE: To evaluate the responsiveness of the PCSS to change and longitudinal validity in patients with persistent postconcussive symptoms as well as to explore the responsiveness of other clinical outcome measures to monitor recovery of physical symptoms in patients with persistent postconcussive symptoms. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: Patients with persistent symptoms after a concussion (N = 109) were evaluated using self-reported questionnaires at baseline and after a 6-week rehabilitation program. The program consisted of an individualized symptom-limited aerobic exercise program combined with education. Questionnaires included the PCSS, Neck Disability Index (NDI), Headache Disability Inventory (HDI), Dizziness Handicap Inventory (DHI), and Numeric Pain Rating Scale (NPRS) related to 1) neck pain and 2) headache. Internal responsiveness was evaluated using the effect size (ES) and standardized response mean (SRM), and external responsiveness was determined with the minimal clinically important difference (MCID) calculated using a receiver operating characteristic curve. The global rating of change was used as the external criterion. Pearson correlations were used to determine the longitudinal validity. RESULTS: The PCSS was highly responsive (ES and SRM, >1.3) and had an MCID of 26.5 points (of 132) for the total score and 5.5 (of 22) for the number of symptoms. For longitudinal validity, low to moderate correlations were found between changes in PCSS and changes in NDI, HDI, and DHI. The NDI, HDI, DHI, and NPRS were also highly responsive (ES and SRM, >0.8). CONCLUSION: All questionnaires including the PCSS were highly responsive and can be used with confidence by clinicians and researchers to evaluate change over time in a concussion population with persistent symptoms. CI - (c) The Author(s) 2022. FAU - Langevin, Pierre AU - Langevin P AD - Clinique Cortex and Physio Interactive, Quebec City, Quebec, Canada. AD - Department of Rehabilitation, Faculty of Medicine, Universite Laval, Quebec City, Quebec, Canada. AD - Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Quebec Rehabilitation Institute, Quebec City, Quebec, Canada. FAU - Fremont, Pierre AU - Fremont P AD - Department of Rehabilitation, Faculty of Medicine, Universite Laval, Quebec City, Quebec, Canada. FAU - Fait, Philippe AU - Fait P AD - Clinique Cortex and Physio Interactive, Quebec City, Quebec, Canada. AD - Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Quebec Rehabilitation Institute, Quebec City, Quebec, Canada. AD - Department of Human Kinetics, Universite du Quebec a Trois-Rivieres, Quebec City, Quebec, Canada. AD - Research Center in Neuropsychology and Cognition (CERNEC), Montreal, Quebec, Canada. FAU - Roy, Jean-Sebastien AU - Roy JS AD - Department of Rehabilitation, Faculty of Medicine, Universite Laval, Quebec City, Quebec, Canada. AD - Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Quebec Rehabilitation Institute, Quebec City, Quebec, Canada. LA - eng PT - Journal Article DEP - 20221012 PL - United States TA - Orthop J Sports Med JT - Orthopaedic journal of sports medicine JID - 101620522 PMC - PMC9561659 OTO - NOTNLM OT - Post-Concussion Symptoms Scale OT - concussion OT - persistent postconcussive symptoms OT - responsiveness COIS- One or more of the authors has declared the following potential conflict of interest or source of funding: Funding was provided by the REPAR and by the OPPQ. The funding agency/sponsor had no role in the study design, manuscript preparation, or decision to submit for publication. P.L. received a doctoral training scholarship from the FRQ-S. J.S.R. was supported by a salary award from the FRQ-S. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto. EDAT- 2022/10/18 06:00 MHDA- 2022/10/18 06:01 PMCR- 2022/10/12 CRDT- 2022/10/17 05:33 PHST- 2022/07/06 00:00 [received] PHST- 2022/07/27 00:00 [accepted] PHST- 2022/10/17 05:33 [entrez] PHST- 2022/10/18 06:00 [pubmed] PHST- 2022/10/18 06:01 [medline] PHST- 2022/10/12 00:00 [pmc-release] AID - 10.1177_23259671221127049 [pii] AID - 10.1177/23259671221127049 [doi] PST - epublish SO - Orthop J Sports Med. 2022 Oct 12;10(10):23259671221127049. doi: 10.1177/23259671221127049. eCollection 2022 Oct.