Table 2 Patient characteristics, duration of anaesthesia, BIS and ephedrine administration

Age (yr)

48 ± 17

50 ± 16

0.67

Weight (kg)

79.6 ± 15

83.8 ± 16

0.23

Height (cm)

173 ± 11

172 ± 9

0.70

Body mass index (kg·m^-2)

26.5 ± 3.7

28.2 ± 4.3

0.06

Gender ratio (female/male)

16/23

16/24

0.89

ASA I/II/III

5/30/4

3/33/4

0.73

Duration of anaesthesia (min)

81 (38-193)

121 (48-214)

0.01

BIS at tracheal intubation

27 (13-65)

29 (14-62)

0.07

BIS at tracheal extubation

72 (43-91)

71 (42-88)

0.89

Administration of ephedrine (n)

15 (38)

16 (40)

0.93