Table 1. Phases of anesthesia.

Group	Induction [s]	Non-surgical tolerance [s]	Surgical tolerance [s]	Wake-up period [s]
Single anesthesia ♀ (n = 13)	92.62 ± 20.13	107 ± 15.57##	2500.38 ± 30.17##	150.15 ± 98.99
Repeated anesthesia ♀ (n = 13)	117.15 ± 8.07***	173.38 ± 50.21***	2431.00 ± 21.36***, #	105.38 ± 79.96
Single anesthesia ♂ (n = 13)	100.85 ± 15.09	154.77 ± 37.25	2444.38 ± 47.06	126.31 ± 63.46
Repeated anesthesia ♂ (n = 13)	117.38 ± 12.97**	151.46 ± 42.69	2452.69 ± 22.04	89.15 ± 72.04

Data are given as mean ± standard deviation. p values were calculated using Mann-Whitney-U-Test

** p < 0.01

*** p < 0.001 versus a single anesthesia

^# p < 0.05

^## p < 0.01 versus ♂.