Questionnaires that assess disability in children and adolescents with low back pain adhere to the concepts of the International classification of functioning, disability and health (ICF), but lack validity for this population: a systematic review.

Although most of the identified PROMs had broad coverage of their concepts in the ICF, only two PROMs had measurement properties tested in the population of interest in this review, in which the mHFAQ presented wide coverage in relation to the ICF. Further studies are needed to investigate content validity of these PROMs.