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. 2022 Sep 1;17(9):e0273784. doi: 10.1371/journal.pone.0273784

Table 1. Study characteristics.

Study Characteristics No. of Studies % of Total
Year of Publication 
    2007–2013 38 61.29
    2014–2020 24 38.71
Study Locations 
    North America 31 50.00
    Europe [including UK] 17 27.41
    Asia  7 10.45
    Australia and New Zealand 4 5.97
    Central and South America  2 2.99
    Africa 1 1.49
Age of Youngest Child 
    2–5 10 16.12
    6–9 28 45.16
    10–13 11 17.74
    14–17 10 16.12
    not stated 3 4.84
Conditions/Impairments* 
    Neuromusculoskeletal and Movement Related 27 43.55
    Mental Functions 18 29.03
    Functions of the Cardiovascular, Hematological, Immunological and Respiratory Systems  4 6.45
    Digestive, Metabolic and Endocrine Systems 3 4.84
    Sensory Functions and Pain 2 3.23
    Voice and Speech Functions 1 1.61
    Genito-urinary and Reproductive Functions 0 0.00
    Functions of the Skin and Related Structures  1 1.61
    Not Specified  8 12.90
Form of Inclusion
    Research on children 47 75.81
    Research with children 10 16.13
    Research by children  5 12.40

*Specific conditions classified using the International Classification of Functioning, Disability and Health [ICF] and ICD-10 codes.