Longitudinal

SC Sophie Cole
MS Maria T. Sanchez-Santos
SK Spyros Kolovos
MJ Muhammad Kassim Javaid
RP Rafael Pinedo-Villanueva
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Mixed-effects regression models were run to investigate whether subsequent scores reported by the participants changed over time. The first four questionnaire submissions of each instrument by participants were used. Age and sex were used as controls.

All analyses were completed using statistical software R [23] and additional relevant packages [2442].

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