Table 2.

Two-way repeated measures ANOVA for between group and time interactions of VAS scores in patients with HZ and PHN.

Disease	Group	Number	Baseline	2 weeks	3 months	6 months	12 months		F	P -value
HZ	Trunk	79	7.57 ± 1.55	2.29 ± 1.22	2.28 ± 1.79	1.54 ± 1.71	1.03 ± 1.50	Group	1.115	0.346
	Neck	26	7.15 ± 2.20	1.96 ± 1.11	1.85 ± 1.52	1.38 ± 1.50	0.77 ± 1.03	Time	355.076	<0.001
	Facial	16	7.81 ± 1.68	2.38 ± 0.89	2.25 ± 1.69	2.00 ± 1.55	1.19 ± 1.22	Group*Time	0.476	0.876
	Hip	10	7.70 ± 0.95	1.50 ± 0.97	2.30 ± 1.83	1.00 ± 1.15	0.60 ± 0.84
PHN	Trunk	147	7.31 ± 1.51	4.54 ± 2.21	4.48 ± 1.79	3.81 ± 1.96	3.54 ± 2.18	Group	1.106	0.347
	Neck	37	7.62 ± 1.67	4.35 ± 2.42	4.00 ± 1.51	3.38 ± 1.74	3.05 ± 1.86	Time	90.084	<0.001
	Facial	27	6.30 ± 2.16	5.22 ± 1.99	3.59 ± 1.69	3.37 ± 1.86	2.74 ± 1.83	Group*Time	2.407	0.068
	Hip	19	7.42 ± 1.57	4.84 ± 2.24	4.47 ± 1.81	3.26 ± 1.91	3.16 ± 2.81
	>12 months	66	7.44 ± 1.62	4.65 ± 2.38	4.35 ± 1.83	3.85 ± 2.05	3.56 ± 2.13	Group	0.590	0.555
	7–12 months	71	7.20 ± 1.60	4.51 ± 2.17	4.58 ± 1.64	3.59 ± 1.67	3.30 ± 2.19	Time	169.970	<0.001
	4–6 months	93	7.16 ± 1.73	4.67 ± 2.17	4.05 ± 1.77	3.54 ± 2.00	3.20 ± 2.16	Group*Time	0.707	0.657

HZ, herpes zoster; PHN, postherpetic neuralgia; VAS, visual analog scale; ANOVA, analysis of variance.