Table 1 Demographic and surgical characteristics of patients

Age, median (IQR), yr

4 (4–5)

5 (3–6)

4 (3.5–5)

4 (3–4.5)

4 (3–5)

Male/Female, No./No.

17/3

17/3

16/4

16/4

16/4

Weight, median (IQR), kg

17.0 (16.0–20.0)

18.3 ± 3.95

17.0 (15.0–17.75)

16.4 ± 3.28

18.5 ± 3.76

Duration of surgery, median (IQR), min

14.4 ± 5.95

11.5 (10.0–14.5)

12.0 (9.5–14.0)

11.0 (9.5–20.5)

11.5 (9.0–13.0)