Table 3.

Puncture success value

	L1	L2	L3	L4	L5
Left	40.51 ± 27.77	49.53 ± 23.82	61.59 ± 13.82	59.45 ± 11.07	48.42 ± 16.78
Right	22.55 ± 30.04*	34.77 ± 30.02*	50.82 ± 20.55*	52.95 ± 13.84*	47.59 ± 14.55
Female	25.39 ± 36.96	33.33 ± 31.06	51.70 ± 21.29	54.60 ± 14.81	50.97 ± 11.61
Male	37.67 ± 30.63**	50.53 ± 21.86**	60.60 ± 13.29**	57.80 ± 10.52**	45.04 ± 18.47**
Mean	31.53 ± 34.45	42.15 ± 28.06	56.21 ± 18.30	56.20 ± 12.93	48.01 ± 6.88

*Compared with the left side, P < 0.001; ** Compared with females, P < 0.05