Table IV.

Risk of Reduced HRQL subscales (Physical Function and Family Activities) associated with impairment

	Physical function subscale*						Family activities subscale*
Impairment†	Parent			Child			Parent			Child
	OR‡	95% CI	p-value	OR‡	95% CI	p-value	OR‡	95% CI	p-value	OR‡	95% CI	p-value
Ankle dorsiflexion range of motion	2.4	[0.5–12.5]	0.28	3.5	[0.7–17.7]	0.13	1.1	[0.3–4.3]	0.92	6.8	[0.8–58.1]	0.08
Ankle dorsiflexion strength	1.5	[0.4–6.1]	0.54	1.4	[0.3–5.6]	0.66	0.7	[0.2–2.7]	0.65	1.3	[0.3–5.6]	0.76
Knee extension strength	2.3	[0.8–6.7]	0.13	20.9	[2.5–173.3]	<0.001	4.3	[1.2–16.3]	0.03	2.5	[0.7–8.4]	0.15
Handgrip strength	1.0	[0.4–2.7]	0.97	3.3	[1.0–10.8]	0.05	1.7	[0.6–5.2]	0.33	2.1	[0.6–7.2]	0.24
Fitness	1.7	[0.5–5.5]	0.4	2.1	[0.6–7.2]	0.26	0.7	[0.2–2.9]	0.64	1.1	[0.2–5.0]	0.88

OR=Odds ratio, CI=Confidence Interval

^*Poor HRQL defined as scoring at least one standard deviation below the population mean for that subscale

^†Impairment defined as scoring at least 2 standard deviations below the mean on that measure

^‡Adjusted for age, sex and race