Measuring global activity performance in children with cerebral palsy in West Africa: validation of an adapted version of the ACTIVLIM-CP questionnaire.

To calibrate a West-African version of the ACTIVLIM-CP questionnaire (ACTIVLIM-CP-WA) for children with cerebral palsy (CP). We recruited 287 children with CP of various age range: 2–6 years (n = 117, preschoolers), 6–12 years (n = 96, children) and 12–19 years (n = 74, adolescents). Caregivers of children of each age range completed the experimental version of the ACTIVLIM-CP-WA including 76 (preschoolers), 78 (children) and 76 (adolescents) global daily life activities. Responses were analyzed using the Rasch RUMM2030 software. The final West-African version of ACTIVLIM-CP including 31 items (both common and age-specific items) defined a unidimensional, linear scale with well-discriminated response categories. It presented a high internal consistency (R = 0.94). Moreover, all items were locally independent and the item difficulty hierarchy was invariant regarding caregivers' education, children's age and gender, MACS and GMFCS levels. The ACTIVLIM-CP-WA measures were significantly correlated (p < 0.05) with Gross Motor Function Classification System (ρ = −0.77), Manual Ability Classification System (ρ = −0.75), Box and Block test (dominant hand r = 0.51; non-dominant hand r = 0.49), One-minute walking test (r = 0.28), and Timed up and Go test (r = −0.40). The ACTIVLIM-CP-WA questionnaire provides a valid and reliable tool that has the potential to follow children's evolution and quantify changes consecutive to neurorehabilitation in Sub-Saharan Africa. The West-African version of the ACTIVLIM-CP questionnaire (ACTIVLIM-CP-WA) measures global activities requiring a combination of lower and upper extremities in children with cerebral palsy. As a Rasch-built scale, measures are unidimensional and linear to document changes in children with cerebral palsy from 2 to 19 years in Sub-Saharan Africa. Rehabilitation professionals are encouraged to use the ACTIVLIM-CP-WA questionnaire as a psychometrically robust assessment tool measuring the global performance in daily life activities in children with cerebral palsy in Sub-Saharan Africa. [ABSTRACT FROM AUTHOR]