Table 2.

Measurement of quality-of-life scores (x ± s).

Group	n	Physical function		Emotional function		Cognitive function		Social function		Role function		Total score
		Before treatment	After treatment	Before treatment	After treatment	Before treatment	After treatment	Before treatment	After treatment	Before treatment	After treatment	Before treatment	After treatment
Joint group	49	53.22 ± 4.90	82.69 ± 4.66∗△	53.20 ± 4.99	83.04 ± 5.01∗△	56.29 ± 4.56	84.37 ± 4.76∗△	54.29 ± 4.82	85.04 ± 4.46∗△	53.29 ± 5.32	82.86 ± 5.55∗△	54.18 ± 4.89	82.88 ± 5.35∗△
Single-drug group	49	54.27 ± 4.70	67.41 ± 4.88∗	53.90 ± 4.48	67.47 ± 4.70∗	57.47 ± 4.62	71.45 ± 4.83∗	55.12 ± 4.65	69.18 ± 4.17∗	54.31 ± 4.54	67.88 ± 4.99∗	54.71 ± 4.35	68.00 ± 4.56∗
t		1.073	15.86	0.724	15.87	1.277	13.34	0.875	18.18	1.021	14.06	0.568	14.82
P		0.286	≤0.001	0.471	≤0.001	0.205	≤0.001	0.384	≤0.001	0.310	≤0.001	0.571	≤0.001

∗P < 0.01 vs before treatment, ^△P < 0.01 vs joint group.