Table 3.

Comparison of prescribed medications during the follow-up period.

	Conservative group	Surgical group	p-value
NSAIDs
During previous 4 weeks	46 (96)	44 (92)	0.399
At 6-week follow-up	45 (94)	40 (83)	0.109
At 3-month follow-up	42 (88)	7 (15)	< 0.001
At 6-month follow-up	44 (92)	2 (4)	< 0.001
Opioids
During previous 4 weeks	24 (50)	29 (60)	0.305
At 6-week follow-up	34 (71)	23 (48)	0.022
At 3-month follow-up	27 (56)	3 (6)	< 0.001
At 6-month follow-up	19 (38)	1 (2)	< 0.001
Pregabalin or gabapentin
During previous 4 weeks	27 (56)	34 (71)	0.138
At 6-week follow-up	28 (58)	15 (31)	0.008
At 3-month follow-up	26 (54)	4 (8)	< 0.001
At 6-month follow-up	24 (50)	2 (4)	< 0.001
Sleep medication
During previous 4 weeks	12 (25)	11 (23)	0.811
Type of sleep medication			0.307
Hypnotics	8	5
Benzodiazepine	3	4
Anti-depressant	1	2
At 6-week follow-up	12 (25)	11 (23)	0.811
At 3-month follow-up	13 (27)	11 (23)	0.637
At 6-month follow-up	14 (29)	10 (21)	0.346

Data were presented by number (%) of patients or mean ± standard deviation.