Psychometric Evaluation of the “Providing Validation” Measure in Vascular Anomalies

We assessed the psychometric properties of the “providing validation” subscale of PedCOM measures for parents of children with vascular anomalies and adult patients. A total of 139 adult patients and 78 parents completed surveys. The mean score for patients was 3.7 (standard deviation 1.0), and for parents was 4.0 (standard deviation 0.9). “Providing validation” measures demonstrated high internal consistency and good model fit to a unidimensional model for both patients and parents using confirmatory factor analysis. The measures also demonstrated convergent validity with co-administered measures. This study demonstrated the validity of “providing validation” measures for parents and adult patients with vascular anomalies.