Table 2.

Anaesthetic technique and perioperative drugs in patients randomized to receiving either propofol or sevoflurane for anaesthesia maintenance during the index procedure and any anaesthesia within one year before and one year after the index operation.

	Propofol	Sevoflurane	Total	Missing
	n (%)	n (%)	n (%)	%
Anaesthesia time–min, median [IQR]	120.0 [100.0, 145.0]	125.0 [104.0, 152.0]	123.0 [102.0, 149.0]	0.0
Anaesthesia with regional block/local	531 (63.1)	518 (62.5)	1049 (62.8)	0.0
Infiltration				0.0
Paravertebral block	66 (7.8)	76 (9.2)	142 (8.5)
Intercostal block	2 (0.2)	1 (0.1)	3 (0.2)
Local infiltration	443 (52.7)	435 (52.5)	878 (52.6)
Anaesthesia, other	51 (6.1)	57 (6.9)	108 (6.5)	0.0
Opioids, usage at index surgery				0.0
Oral opioids preop.	398 (47.3)	400 (48.3)	798 (47.8)
Fentanyl	205 (24.4)	576 (69.5)	781 (46.8)
Ketobemidone	143 (17.0)	130 (15.7)	273 (16.3)
Morphine	123 (14.6)	122 (14.7)	245 (14.7)
Remifentanil	726 (86.3)	349 (42.1)	1075 (64.4)
Sufentanil	75 (8.9)	71 (8.6)	146 (8.7)
Alfentanil	3 (0.4)	6 (0.7)	9 (0.5)
Opioids, dosage at index surgery				0.0
Oral opioids preop.–mg; median [IQR]	5.0 [3.0–10.0]	6.0 [3.0–10.0]	5.3 [3.0–10.0]
Fentanyl–μg; median [IQR]	100.0 [100.0–150.0]	100.0 [100.0–150.0]	100.0 [100.0–150.0]
Ketobemidone–mg; median [IQR]	2.5 [2.5–5.0]	2.5 [2.5–3.0]	2.5 [2.5–5.0]
Morphine–mg; median [IQR]	4.0 [2.0–5.0]	3.0 [2.0–5.0]	4.0 [2.0–5.0]
Remifentanil–μg; median [IQR]	1032.0 [741.8–1450.0]	805.8 [617.0–1072.5]	952.0 [690.0–1304.0]
Sufentanil–μg; median [IQR]	26.2 [20.0–41.7]	29.5 [21.6–40.1]	28.6 [20.4–40.6]
Alfentanil–mg; median [IQR]	0.5 [0.5–1.3]	0.5 [0.5–0.5]	0.5 [0.5–0.5]
Opioid usage postoperatively				0.0
Oral opioids postop.	189 (22.5)	162 (19.5)	351 (21.0)
Alfentanil	1 (0.1)	0 (0.0)	1 (0.1)
Fentanyl	0 (0.0)	9 (1.1)	9 (0.5)
Ketobemidone	90 (10.7)	64 (7.7)	154 (9.2)
Morphine	106 (12.6)	118 (14.2)	224 (13.4)
Meperidine	1 (0.1)	0 (0.0)	1 (0.1)
Remifentanil	7 (0.8)	1 (0.1)	8 (0.5)