. 2012 Jul 18;2012:509705. doi: 10.1155/2012/509705

Table 2.

The comparison of factor scores from the SF-36 from baseline to the end of the 6th week between the two groups $(\bar{χ} \pm s)$ .

		Group	Baseline	6th week	Time effect		Treatment × time interaction		Treatment effect
					F	P	F	P	F	P
Physical functioning	FAS	Placebo	85.25 ± 11.53	87.95 ± 10.28	23.501	0.000^∗	0.777	0.379	0.585	0.445
	FAS	XPYS	85.70 ± 12.79	89.60 ± 8.22	23.501	0.000^∗	0.777	0.379	0.585	0.445
	PPS	Placebo	85.25 ± 11.53	87.95 ± 10.28	23.313	0.000^∗	0.844	0.359	1.110	0.293
	PPS	XPYS	86.03 ± 12.52	90.00 ± 7.32	23.313	0.000^∗	0.844	0.359	1.110	0.293

Role physical	FAS	Placebo	47.25 ± 36.39	53.25 ± 36.18	24.286	0.000^∗	2.848	0.093	4.686	0.032^∗
	FAS	XPYS	54.25 ± 35.90	66.50 ± 33.75	24.286	0.000^∗	2.848	0.093	4.686	0.032^∗
	PPS	Placebo	47.25 ± 36.39	53.25 ± 36.18	23.950	0.000^∗	2.880	0.091	5.033	0.026^∗
	PPS	XPYS	54.64 ± 36.14	67.01 ± 33.57	23.950	0.000^∗	2.880	0.091	5.033	0.026^∗

Bodily pain	FAS	Placebo	68.29 ± 14.59	70.65 ± 14.03	36.080	0.000^∗	7.468	0.007^∗	0.195	0.660
	FAS	XPYS	65.54 ± 13.12	71.84 ± 12.16	36.080	0.000^∗	7.468	0.007^∗	0.195	0.660
	PPS	Placebo	68.29 ± 14.59	70.65 ± 14.03	36.804	0.000^∗	8.025	0.005^∗	0.380	0.538
	PPS	XPYS	65.13 ± 12.83	71.63 ± 11.98	36.804	0.000^∗	8.025	0.005^∗	0.380	0.538

General health	FAS	Placebo	45.69 ± 13.66	47.59 ± 13.71	7.929	0.005^∗	2.146	0.145	2.006	0.158
	FAS	XPYS	45.68 ± 16.19	51.70 ± 13.34	7.929	0.005^∗	2.146	0.145	2.006	0.158
	PPS	Placebo	45.69 ± 13.66	47.59 ± 13.71	8.249	0.005^∗	2.370	0.125	1.475	0.226
	PPS	XPYS	45.24 ± 16.03	51.53 ± 13.21	8.249	0.005^∗	2.370	0.125	1.475	0.226

Vitality	FAS	Placebo	50.05 ± 13.46	53.55 ± 14.71	27.812	0.000^∗	1.164	0.282	1.671	0.198
	FAS	XPYS	51.60 ± 15.17	56.90 ± 15.17	27.812	0.000^∗	1.164	0.282	1.671	0.198
	PPS	Placebo	50.05 ± 13.46	53.55 ± 14.71	28.076	0.000^∗	1.348	0.247	1.355	0.246
	PPS	XPYS	51.29 ± 15.14	56.75 ± 15.23	28.076	0.000^∗	1.348	0.247	1.355	0.246

Social functioning	FAS	Placebo	70.75 ± 17.70	72.38 ± 15.82	10.143	0.002^∗	2.235	0.137	1.867	0.173
	FAS	XPYS	72.13 ± 16.17	76.63 ± 14.40	10.143	0.002^∗	2.235	0.137	1.867	0.173
	PPS	Placebo	70.75 ± 17.70	72.38 ± 15.82	9.898	0.002^∗	2.189	0.141	2.264	0.134
	PPS	XPYS	72.42 ± 16.23	76.93 ± 14.25	9.898	0.002^∗	2.189	0.141	2.264	0.134

Role emotional	FAS	Placebo	47.00 ± 35.17	55.33 ± 33.58	21.020	0.000^∗	0.115	0.735	2.002	0.159
	FAS	XPYS	52.33 ± 33.59	62.00 ± 29.60	21.020	0.000^∗	0.115	0.735	2.002	0.159
	PPS	Placebo	47.00 ± 35.17	55.33 ± 33.58	20.385	0.000^∗	0.105	0.746	2.136	0.146
	PPS	XPYS	52.58 ± 33.62	62.20 ± 29.12	20.385	0.000^∗	0.105	0.746	2.136	0.146

Mental health	FAS	Placebo	54.96 ± 14.54	57.64 ± 14.64	8.009	0.005^∗	3.024	0.084	0.172	0.679
	FAS	XPYS	56.76 ± 13.41	57.40 ± 13.04	8.009	0.005^∗	3.024	0.084	0.172	0.679
	PPS	Placebo	54.96 ± 14.54	57.64 ± 14.64	7.861	0.006^∗	2.876	0.091	0.291	0.590
	PPS	XPYS	56.99 ± 13.38	57.65 ± 12.98	7.861	0.006^∗	2.876	0.091	0.291	0.590