Table 1.

DEMs between the left and right sides, and between men and women. (mm)

Level	Side		p	Gender		p
	Left	Right		Men	Women
T1	22.64 ± 3.83	22.78 ± 4.32	0.634	23.23 ± 4.43	22.2 ± 3.64	0.093#
T2	20.20 ± 3.13	19.71 ± 2.90	0.136#	20.22 ± 2.70	19.69 ± 3.31	0.030*#
T3	18.57 ± 2.80	18.23 ± 2.31	0.601#	18.84 ± 2.50	17.96 ± 2.56	0.006*#
T4	17.66 ± 2.34	17.69 ± 2.39	0.856#	17.93 ± 2.22	17.41 ± 2.47	0.120
T5	17.83 ± 2.79	17.37 ± 2.46	0.258#	17.72 ± 2.51	17.48 ± 2.75	0.366#
T6	18.63 ± 2.89	17.34 ± 3.27	< 0.001*	18.36 ± 3.18	17.61 ± 3.08	0.142#
T7	19.35 ± 2.74	17.58 ± 3.12	< 0.001*	18.90 ± 2.95	18.04 ± 3.12	0.047*
T8	19.79 ± 3.03	18.23 ± 3.20	< 0.001*#	19.32 ± 3.24	18.70 ± 3.16	0.170
T9	20.55 ± 3.43	19.13 ± 3.98	< 0.001*	20.29 ± 4.24	19.40 ± 3.20	0.095
T10	22.05 ± 2.89	20.78 ± 3.43	< 0.001*	21.89 ± 3.18	20.94 ± 3.21	0.044*#
T11	22.60 ± 2.92	21.69 ± 2.96	0.005*	22.54 ± 3.48	21.74 ± 2.30	0.003*#
T12	22.30 ± 2.38	22.44 ± 2.45	0.460	22.93 ± 2.36	21.81 ± 2.34	< 0.001*
Mean	20.18 ± 3.44	19.42 ± 3.67	< 0.001 *#	20.18 ± 3.68	19.41 ± 3.42	< 0.001 *#

Abbreviations: DEM, distance from the bone entry puncture point to the midline.

Data are expressed as mean ± standard deviation.

^* indicates significant differences between left and right or men and women (p < 0.05).

^# indicates measured data with non-normality.