Table 3.

Mean health-related quality of life scores (TACQoL) for adolescents age 12–17 with MD and healthy children

	MD	healthy children
	Mean (SD)	Mean (SD)
	N = 22	N = 1249	d
Physical symptoms	26.8 (4.4.)**	23.7 (5.4)	-0.6
Motor functioning	23.2 (4.4)***	29.8 (3.3)	2
Cognitive function	28.1 (4.7)	27.6 (4.1)	-0.1
Positive emotions	12.9 (2.3)	13.0 (2.8)	0.0
Negative emotions	12.4 (2.3)	11.6 (2.6)	-0.3

Higher scores indicate a better quality of life

d = effect size

One sample t-test ** p < 0.01; *** p < 0.00