Table 1 Patients characteristics and demographic data

Patient characteristics

Age(yr)

56(16)

53(18)

p = 0.85^Ω

ASA I/II/III n (%)

50(45)/50(45)/11(10)

85(46)/91(49)/8(0.5)

p = 0.3^∞

Height (cm)

179(7)

165(6)

p = <0.001^Ω

Weight (kg)

87(16)

71(14)

p = <0.001^Ω

Perioperative medications

Rocuronium

52(24)

42(17)

p < 0.001§

Fentanyl

157(86)

127(100)

p = 0.008§

Remifentanil

34(195)

136(359)

p < 0.001§

Ketobemidon

0.08(0)

0.7(0)

p < 0.001§

Bethametasone

0.4(1.3)

2(2.3)

p < 0.001§

Morphine at the PACU

4.8(16)

1.9(3.5)

NS

Ketobemidon at the PACU

3(16)

0.5(1.5)

NS

Perioperative characteristics

Hand Surgery n (%)

19(17)

20(11)

General Surgery n (%)

23(20)

65(35)

Gynaecology n (%)

44(24)

Orthopaedics n (%)

35(31)

48(26)

Urology n (%)

35(31)

8(4)

Daysurgery/Inpatients n (%)

55(49)/57(51)

107(58)/78(42)

p = 0.1^∞

Duration of surgery (min)

67(10–203)*

59 (6–234)*

p = 0.02^§

ETT size 6.0/7.0/8.0 n(%)

0/2(3)/59(97)

78(89)/10(11)/0

NA

LMA size 3/4/5 n(%)

0/1(2)/50(98)

5(5)/92(95)/0

NA

Blood on the device n(%)

8(7)

9(5)

p = 0.5^∞

Experience of the anaesthesia staff (yr)

6(0–39)*

4(0–39)*

p = 0.1^§

Time at the PACU (min)

180(60–2160)*

192(45–620)

p = 0.7^§