Table 3.

Additional analgesic treatments

	Population
	<70 years (70−)		≥70 years (70+)		All
	N=745		N=609		N=1354
Additional analgesic treatment	N	Per cent	N	Per cent	N	Per cent	p Value
Day 0
Analgesics	569	96.9	499	96.1	1072	96.6	0.473*
Antidepressants	6	1.0	6	1.2	12	1.1	0.830*
Anticonvulsants	57	9.7	51	9.8	108	9.7	0.948*
Month 3
Analgesics	46	76.7	78	76.5	125	76.7	0.977*
Antidepressants	4	6.7	6	5.9	10	6.1	0.841*
Anticonvulsants	18	30.0	36	35.3	54	33.1	0.605†
Month 6
Analgesics	17	85.0	31	63.3	48	69.6	0.075*
Antidepressants	3	15.0	2	4.1	5	7.2	0.142†
Anticonvulsants	3	15.0	20	40.8	23	33.3	0.039*
Month 12
Analgesics	8	72.7	27	73.0	35	72.9	1.000†
Antidepressants	2	18.2	6	16.2	8	16.7	1.000†
Anticonvulsants	2	18.2	10	27.0	12	25.0	0.705†

	<80 years (80−)		≥80 years (80+)		All
	N=745		N=609		N=1354
Anticonvulsants	N	Per cent	N	Per cent	N	Per cent	p Values
Month 3	40	32.5	14	35.9	54	33.1	0.697*
Month 6	14	26.9	9	52.9	23	33.3	0.048*
Month 12	7	21.9	5	31.3	12	25.0	0.500†

*χ² test.

†Fischer's exact test.