Table 1 Patient characteristics and perioperative data

Characteristics

Age, years

47.9 ± 12.1

48.1 ± 13.0

0.931^a

Sex, male/female

34/26

36/24

0.711^c

Education, years

9.0 (6.0, 12.0)

9.0 (9.0, 12.0)

0.525^b

Height, cm

165.5 ± 7.1

165.2 ± 7.3

0.811^a

Weight, kg

65.5 (59.3, 72.8)

70.0 (60.0, 74.4)

0.266^b

BMI, kg/m^− 2

24.0 ± 2.6

24.9 ± 3.3

0.129^a

Smoking, n (%)

19 (31.7)

20 (33.3)

0.845^c

Surgical history, n (%)

24 (40.0)

31 (51.7)

0.200^c

Hypertension, n (%)

22 (36.7)

23 (38.3)

0.850^c

Diabetes, n (%)

2 (3.3)

3 (5.0)

1.000^d

Intraoperative data

Cerebrovascular/Brain tumor

46/14

44/16

0.673^c

Anesthetic duration, min

211 (169, 274)

202 (152, 293)

0.803^b

Total liquid intake, mL

1550 (1000, 2238)

1625 (1300, 2000)

0.749^b

Propofol, mg

1400 (1100, 1800)

1399 (1092, 1784)

0.830^b

Sufentanil, μg

35 (33, 40)

35 (30, 40)

0.349^b

Remifentanil, μg

2050 (1673, 2633)

2100 (1587, 2849)

0.910^b

Time interval between extubation and CT scan, min

35 (35, 45)

37 (29, 44)

1.000^b