Values for the reference population are reprinted with permission from HealthActCHQ Inc. Lower scores indicate greater impact on quality of life. PA physical abilities, GD satisfaction with growth and development, BP bodily pain, TM temperament and moods, CBE combined behavior, getting along, GH general health perceptions, PE parent impact emotional, PT parent impact time, FC family cohesion. **p < 0.001; *p < 0.05.