. 2025 Apr 24;20:414. doi: 10.1186/s13018-025-05824-x

Table 4.

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

Level	Side		p	Gender		p
Level	Left	Right	p	Men	Women	p
T1	6.23 ± 1.67	6.21 ± 1.67	0.841	6.73 ± 1.55	5.71 ± 1.63	< 0.001^*
T2	4.88 ± 1.35	4.91 ± 1.51	0.684	5.31 ± 1.36	4.48 ± 1.38	< 0.001^*#
T3	3.97 ± 1.15	3.85 ± 1.18	0.095	4.33 ± 1.09	3.48 ± 1.08	< 0.001^*
T4	3.61 ± 1.04	3.57 ± 1.08	0.546	4.00 ± 0.96	3.18 ± 1.00	< 0.001^*#
T5	3.70 ± 1.08	3.68 ± 1.16	0.704	4.10 ± 1.06	3.28 ± 1.02	< 0.001^*
T6	4.10 ± 1.15	3.99 ± 1.05	0.185	4.41 ± 1.01	3.68 ± 1.07	< 0.001^*
T7	4.29 ± 1.07	4.31 ± 1.08	0.269^#	4.64 ± 0.98	3.96 ± 1.06	< 0.001^*#
T8	4.63 ± 1.24	4.63 ± 1.17	0.943	4.94 ± 1.22	4.33 ± 1.11	< 0.001^*#
T9	5.04 ± 1.29	5.05 ± 1.35	0.859	5.43 ± 1.23	4.65 ± 1.29	< 0.001^*
T10	5.92 ± 1.69	5.92 ± 1.79	0.994	6.26 ± 1.62	5.58 ± 1.79	0.005^*#
T11	6.74 ± 1.83	6.60 ± 1.73	0.217	7.12 ± 1.77	6.22 ± 1.67	< 0.001^*
T12	6.25 ± 1.95	6.23 ± 1.83	0.870	6.54 ± 1.78	5.95 ± 1.95	0.005^*#
Mean	4.95 ± 1.75	4.91 ± 1.75	0.300 ^#	5.32 ± 1.69	4.54 ± 1.72	< 0.001 ^*

Abbreviations: MTPW, the minimum transverse pedicle width.

Data was expressed by mean ± standard deviation.

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

^# indicates measured data with non-normality.