Purpose
Few studies have evaluated self-assessment tools among children with congenital hand differences. We compared three upper extremity disability instruments with the Patient Reported Outcomes Measurement Information System (PROMIS®) Pediatric Upper Extremity Item Bank.
Methods
Thirty-three children (ages 6–17) with congenital hand differences completed the Pediatric Outcomes Data Collection Instrument (PODCI), the Michigan Hand Outcomes Questionnaire (MHQ), the Disability of the Arm, Shoulder, and Hand (DASH), and the PROMIS® Upper Extremity short form (SF) and computerized adaptive test (CAT). Hand function was also assessed using grip and pinch strength and the Nine-Hole Peg Test. We used Spearman correlation coefficients to determine construct validity, and examined feasibility by comparing completion time, reading level, need for assistance, and patient preference among the instruments.
Results
PROMIS® demonstrated good construct validity. SF and CAT versions of PROMIS® were highly correlated with DASH scores (r > 0.80, p<0.001) and all PODCI domains except sports (r>0.70, p<0.001). Correlations with the MHQ were moderate (r> 0.40, p < 0.05). PROMIS® SF and CAT scores also correlated with grip strength (r≥0.60, p<0.001) and pinch strength (r>0.50, p<0.001). Compared to the other questionnaires, PROMIS® was much more feasible. It took the least time to complete, fewer children required assistance, and it is written at a lower, more age-appropriate reading level than the MHQ and DASH.
Conclusions
PROMIS® is highly correlated with both functional tests and traditional hand function questionnaires. Our results provide encouraging evidence that PROMIS® may be an efficient, feasible option to capture hand function among children with congenital hand differences.
Level of Evidence: III