Age (y)

4 ± 1

4 ± 1

4 ± 1

Weight (kg)

15.4 ± 5.4

15.3 ± 6.1

15.5 ± 4.1

Gender (M/F)

27/11

22/16

26/12

Duration of anesthesia (min)

56 ± 11

55 ± 14

56 ± 15

Duration of surgery (min)

34 ± 10

34 ± 12

36 ± 13