DOS Kongressen 2014 ·
175
Reliability and validation of the Oxford Ankle Foot
Questionnaire (OxAFQ) in 82 Danish patients aged
5 to 16 years
Polina Martinkevich, Bjarne Møller-Madsen, Martin Gottliebsen,
Line Kjeldgaard Pedersen, Ole Rahbek
Children’s Orthopaedics, Aarhus University Hospital
Background:
The OxAFQ was developed to assess disability associated with
foot and ankle problems in children aged five to 16 years, as experienced by the
child and parents. It has been throughly validated in English. There is currently no
Danish validated foot/ankle score for children.
Purpose / Aim of Study:
To validate the Danish version of the OxAFQ in terms
of agreement and reliability (internal consistency, test-retest, child- parent reli-
ability), feasibility and construct validity.
Materials and Methods:
A prospective observational cohort study. Inclusion
criteria were children aged between 5 to 16 years with parents attending the
outpatient clinic at children’s orthopedics. Patients with a significant proximal
musculoskeletal component, cognitive impairment or inability to understand
Danish were excluded. Both OxAFQ and Child Health Questionnaire (CHQ) were
obtained. Re-test of OxAFQ was done after 2 days. Reliability and agreement
was assessed by the intraclass correlation coefficient and as limits of agree-
ment. Construct validity assessed as Spearman rho against CHQ.
Findings / Results:
Eighty-two children, mean age 11.7 years (range 5.5 to
16.0) and their parents participated. We found good internal consistency for
the Physical and the School & Play domain, but lower for the Emotional domain.
Construct validity was good for convergent validity. Good agreement was found
within and between children and parents. The OxAFQ was fast and easy to com-
plete. A tendency towards ceiling effects was observed in the School & Play and
Emotional domains.
Conclusions:
To our knowledge this is the first independent validation of the
OxAFQ. We found it valid and feasible for use in the outpatient clinic to assess
the degree to which children are affected by their foot and ankle conditions.
OxAFQ is now available in a Danish validated version.
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