Article

AIM: To examine intra- and interrater reliability/agreement, and time taken to
score, when the Quality Function Measure (QFM) is applied to children with
hyperkinetic movement disorders (HMD; e.g. dystonia, chorea, athetosis, tremor,
and myoclonus). METHOD: Fifteen ambulant children with HMD participated (eight
males, seven females; mean age 13y 7mo, SD 3y 7mo).
Three trained raters (two
physiotherapists, one occupational therapist) independently scored the QFM using
videos of each child performing Gross Motor Function Measure (GMFM) Stand and
Walk/Run/Jump dimensions. Reliability was evaluated using intraclass correlation
coefficient (ICC) model 2.1, Standard Error of Measurement (SEM), and
Bland-Altman methods. RESULTS: Rater reliability was excellent for all five QFM
attributes: intrarater ICCs >/=0.98 (95% confidence interval [CI] 0.83-1.00), and
interrater ICCs >/=0.96 (95% CI 0.91-1.00). SEM varied from 2.07% to 4.72% points
for intra- and interrater scores across QFM attributes. Bland-Altman tests
demonstrated close agreement between ratings, with absolute mean differences
varying from 0.34% to 3.23% (intrarater) to 1.67% to 3.82% (interrater). Median
scoring duration time was 83 minutes (range 56-144min, SD 16.02). INTERPRETATION:
Low measurement error attributable to rater effects suggests the QFM has
potential as an evaluative measure in research studies involving children with
HMD, though its lengthy scoring requirements are an important consideration for
clinical practice. Evaluation of test-retest reliability and responsiveness is
required.
CI - (c) 2016 Mac Keith Press.

Langue : ANGLAIS