1. Applicability and clinical utility of the German rivermead post-concussion symptoms questionnaire in proxies of children after traumatic brain injury: an instrument validation study.
- Author
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Bockhop, Fabian, Greving, Sven, Zeldovich, Marina, Krenz, Ugne, Cunitz, Katrin, Timmermann, Dagmar, Kieslich, Matthias, Andelic, Nada, Buchheim, Anna, Koerte, Inga K., Roediger, Maike, Brockmann, Knut, Bonfert, Michaela V., Berweck, Steffen, Lendt, Michael, Staebler, Michael, and von Steinbuechel, Nicole
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POSTCONCUSSION syndrome , *BRAIN injuries , *GENERALIZED anxiety disorder , *PSYCHOMETRICS , *TEST validity , *QUESTIONNAIRES - Abstract
Background: The German Rivermead Post-Concussion Symptoms Questionnaire (RPQ) can be used to assess post-concussion symptoms (PCS) after traumatic brain injury (TBI) in adults, adolescents, and children. Methods: In this study, we examined the psychometric properties of the German RPQ proxy version (N = 146) for children (8—12 years) after TBI at the item, total and scale score level. Construct validity was analyzed using rank correlations with the proxy-assessed Post-Concussion Symptoms Inventory (PCSI-P), the Patient Health Questionnaire 9 (PHQ-9), and the Generalized Anxiety Disorder Scale 7 (GAD-7). Furthermore, sensitivity testing was performed concerning subjects' sociodemographic and injury-related characteristics. Differential item functioning (DIF) was analyzed to assess the comparability of RPQ proxy ratings for children with those for adolescents. Results: Good internal consistency was demonstrated regarding Cronbach's α (0.81—0.90) and McDonald's ω (0.84—0.92). The factorial validity of a three-factor model was superior to the original one-factor model. Proxy ratings of the RPQ total and scale scores were strongly correlated with the PCSI-P (ϱ = 0.50—0.69), as well as moderately to strongly correlated with the PHQ-9 (ϱ = 0.49—0.65) and the GAD-7 (ϱ = 0.44—0.64). The DIF analysis revealed no relevant differences between the child and adolescent proxy versions. Conclusions: The German RPQ proxy is a psychometrically reliable and valid instrument for assessing PCS in children after TBI. Therefore, RPQ self- and proxy-ratings can be used to assess PCS in childhood as well as along the lifespan of an individual after TBI. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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