Table 1 Demographic and clinical data

Sex (females: males)

16 (80%)/ 4 (20%)

6 (67%)/ 3 (33%)

10 (91%)/ 1 (9%)

0.3

Age (years)

49 ± 20

56 (42–69)

35 (24–67)

0.2

Height (cm)

164 ± 11

160 (153–172)

163 (157–173)

0.8

Weight (kg)

72 ± 14

65 (62–89)

64 (62–73)

0.8

American Society of Anesthesiologists

Physical Status I/II

10 (50%)/ 10 (50%)

4 (44%)/ 5 (56%)

6 (55%)/ 5 (45%)

1.0

Type of Surgery

0.7

 Ganglion surgery

6 (30%)

3 (33%)

3 (27%)

 Carpal tunnel release

8 (40%)

3 (33%)

5 (46%)

 Tendon release/transfer

5 (25%)

2 (22%)

3 (27%)

 Combination tendon release/ganglion surgery

1 (5%)

1 (11%)

0 (0%)

 Time t₀ to t₁ (minutes)

52 ± 4

50 (50–55)

50 (50–50)

0.8

First Fentanyl Dose (μg)^a

 Time to first fentanyl dose (minutes)

29 (5 to 45)

–

–

–

 Numerical Rating Scale (0 to 10) Score at first fentanyl dose

5.5 (3 to 9)

–

–

–

 Total fentanyl dose (μg)

50 (25 to 200)

–

–

–

 T₀

0 (0 to 2)

0 (0–1)

0 (0–0)

0.6

 T₀ + 15 min

0 (0 to 4)

2 (0,3)

0 (0–1)

0.1

 T₀ + 30 min

1 (0 to 8)

3 (2,5)

0 (0–0)

0.004

 T₀ + 45 min

1.5 (0 to 9)

5 (3,7)

0 (0–1)

0.001

 T₀

136 ± 21

145 (139–160)

118 (113–131)

0.003

 T₀ + 15 min

135 ± 21

145 (134–160)

115 (110–132)

0.01

 T₀ + 30 min

136 ± 23

147 (130–166)

117 (110–137)

0.02

 T₀ + 45 min

135 ± 22

145 (126–158)

124 (113–130)

0.02

 T₀

77 ± 14

85 (78–94)

73 (64–77)

0.01

 T₀ + 15 min

75 ± 13

88 (77–91)

68 (62–74)

0.01

 T₀ + 30 min

74 ± 14

82 (77–91)

72 (61–75)

0.05

 T₀ + 45 min

76 ± 13

84 (73–96)

73 (62–80)

0.05

 T₀

75 ± 13

68 (65–79)

77 (70–85)

0.3

 T₀ + 15 min

71 ± 14

62 (58–68)

75 (67–79)

0.1

 T₀ + 30 min

73 ± 12

67 (62–73)

78 (66–82)

0.2

 T₀ + 45 min

69 ± 12

64 (59–68)

71 (62–81)

0.1