Validity and reliability of the Physical Activity Questionnaire for Children (PAQ-C) and Adolescents (PAQ-A) in individuals with congenital heart disease

ObjectiveTo assess the criterion validity, internal consistency, reliability and cut-point for the Physical Activity Questionnaire for Children (PAQ-C) and Adolescents (PAQ-A) in children and adolescents with congenital heart disease-a special population at high cardiovascular risk in whom physical activity has not been extensively evaluated.MethodsWe included 84 participants (13.6 +/- 2.9 yrs, 50% female) with simple (37%), moderate (31%), or severe congenital heart disease (27%), as well as cardiac transplant recipients (6%), from BC Children's Hospital, Canada. They completed the PAQ-C (= 12yrs, n = 56), and also wore a triaxial accelerometer (GT3X+ or GT9X) over the right hip for 7 days (n = 59 met valid wear time criteria).ResultsMedian daily moderate-to-vigorous physical activity was 46.9 minutes per day (IQR 31.6-61.8) and 25% met physical activity guidelines defined as >= 60 minutes of moderate-to-vigorous physical activity per day. Median PAQ-score was 2.6 (IQR 1.9-3.0). PAQ-Scores were significantly related to accelerometry-derived metrics of physical activity (rho = 0.44-0.55, all