Table 1 Patient’s clinicodemographic characteristics (n = 140)

Age (years), mean (SD)

51.27 (14.8)

Gender, n (%)

- Male

48 (34.29)

- Female

92 (65.71)

Body mass index (kg.m2), mean (SD)

25.17 (4.67)

ASA PS, n (%)

- I

33 (23.57)

- II

79 (56.43)

- III

28 (20)

Education, n (%)

- Less than high school

25 (17.85)

- High school

27 (19.28)

- Bachelor’s degree

67 (47.85)

- Master’s degree

19 (13.57)

- Others

2 (1.45)

History of previous surgery, n (%)

87 (62.14)

Preexisting medical conditions, n (%)

- Neurological

11 (6.75)

- Cardiovascular

57 (34.95)

- Respiratory

8 (4.91)

- Renal

11 (6.75)

- Endocrinological

59 (36.20)

- Other

17 (12.14)

Type of surgery, n (%)

- General surgery

48 (34.29)

- Urological surgery

22 (15.71)

- Gynecological surgery

70 (50.00)

Anesthesia technique, n (%)

- General anesthesia

136 (97.14)

- Total intravenous anesthesia

1 (0.72)

- Combined GA–RA

3 (2.14)

Duration of surgery (mins), median (IQR)

227.5 (167.5–307.5)

Blood loss (ml), median (IQR)

100 (40–300)

Intraoperative complications, n (%)

- Anemia

1 (0.71)

- Bradycardia

8 (5.71)

- Bronchospasm

1 (0.71)

- Delayed emergences need treatment

1 (0.71)

- Others

5 (3.57)

Postoperative admission to the intensive care unit, n (%)

11 (7.86)

Length of hospital stay (days), median (IQR)

4 (3–6)