Table 4.

Zoster Brief Pain Inventory (ZBPI) scores at D0 (all patients) and at M3, M6 and M12 (patients with PHN) per age group (70− or 70+)

	D0		M3		M6		M12
ZBPI scores	70−	70+	70−	70+	70−	70+	70−	70+
Interference score
N	559	457	34	47	24	27	13	15
Mean	2.9	3.3	2.7	3.1	2.7	2.2	2.5	2.9
	p<0.01
Impact of pain on general activity
N	572	483	34	48	24	32	14	17
Mean	3.6	4.1	3.6	4.6	4.0	2.5	3.6	4.1
Impact of pain on walking
N	570	480	34	49	24	32	14	17
Mean	1.6	2.2	2.0	2.2	1.7	1.7	2.0	3.1
Impact of pain on sleep
N	571	488	34	49	24	31	14	18
Mean	4.1	4.5	2.3	3.9	2.8	2.6	3.1	4.4
	p<0.01
Impact of pain on enjoyment of life
N	572	484	34	49	24	32	14	18
Mean	2.2	2.7	2.6	2.7	2.3	2.8	2.2	2.6
Percentage of patients reporting pain relief during the past 24 h
Mean			64.7	52.1	73.6	46.6	72.0	28.8
(SD)			(37.1)	(25.4)	(31.3)	(31.3)	(25.9)	(24.7)
					p=0.06		p=0.04