Agreement Between the Gross Motor Ability Estimator-2 and the Gross Motor Ability Estimator-3 in Young Children With Cerebral Palsy.
Samuel R Pierce, Julie Skorup, Thubi H A Kolobe and 2 others
PMID 38033276WHAT IT FOUND
Scores from the new smartphone app and the old desktop software matched closely in young children with cerebral palsy.
Therapists can compare results across both systems without recalculating old scores, even for children with very low motor ability.
Key findings
01The two software programs produced GMFM-66 scores that agreed well for the full group of children and for those with low scores.
02The average difference between the two scores was 0.27 points for the whole group and 0.63 points for the low-scoring subset.
03Recalculating old scores with the new software may not be necessary when comparing results over time.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study only included children under 5 years of age, so it does not tell you how the software compares for older children. The agreement was lower for children with scores under 25, likely because there were only 11 such children and their scores did not vary much. The study did not look at children with scores above 75, where the manual suggests differences might be larger. Gross Motor Function Classification System levels were not available for all participants, so the researchers could not check if the agreement held across different levels of motor ability.
Declared interests
The authors declare no conflicts of interest.
The easy way to misread this
Do not assume this agreement holds for older children or for those with high motor scores above 75, as neither group was included in the analysis.