Table 2.

Comparison of health status index scores and health state levels for the five dimensions of the EQ-5D-5L before and after propensity score matching.

	Crude			After Propensity Score Matching
	Using Self-Medication	No Use	p-Value	Using Self-Medication	No Use	p-Value
EQ-5D-5L	n = 341	n = 493		n = 292	n = 292
Health status index scores, mean (SD 1)	0.72 (±0.16)	0.67 (±0.22)	<0.001	0.72 (±0.16)	0.68 (±0.22)	0.024
Health state levels
Mobility, mean (SD)	1.57 (±0.91)	2.00 (±1.31)	<0.001	1.60 (±0.93)	1.91 (±1.28)	0.001
Self-care, mean (SD)	1.29 (±0.69)	1.61 (±1.10)	<0.001	1.28 (±0.69)	1.52 (±1.00)	0.001
Usual activities, mean (SD)	1.65 (±0.87)	1.96 (±1.11)	<0.001	1.66 (±0.88)	1.88 (±1.08)	0.007
Pain/discomfort, mean (SD)	2.15 (±0.84)	2.35 (±1.02)	0.002	2.19 (±0.86)	2.30 (±1.03)	0.138
Anxiety/depression, mean (SD)	1.73 (±0.79)	1.86 (±0.95)	<0.049	1.75 (±0.79)	1.83 (±0.92)	0.268

¹ SD, standard deviation.