Table 2:

Dimensions of DRGs

	Level of DRG
	L5	L4	L3	L2	L1
Width (mm)
Female	6.22 ± 0.86	5.75 ± 0.84	5.25 ± 0.91	4.35 ± 0.88	3.23 ± 0.75
Male	6.60 ± 0.93	5.92 ± 1.03	5.49 ± 1.00	4.69 ± 0.86	3.55 ± 0.75
Combined	6.40 ± 0.91	5.83 ± 0.94	5.37 ± 0.96	4.51 ± 0.88	3.38 ± 0.77
P value^*	0.025 (2.270)^†	0.331 (0.975)	0.189 (1.323)	0.038 (2.099)^†	0.026 (2.254)^†
Length (mm)
Female	11.55 ± 2.45	8.47 ± 1.45	7.05 ± 1.41	5.66 ± 1.03	4.14 ± 0.88
Male	11.61 ± 2.02	8.82 ± 1.52	7.36 ± 1.30	6.07 ± 1.17	4.58 ± 0.85
Combined	11.58 ± 2.25	8.64 ± 1.49	7.20 ± 1.36	5.85 ± 1.11	4.35 ± 0.89
P value^*	0.884 (0.147)	0.200 (1.288)	0.222 (1.229)	0.044 (2.037)^†	0.007 (2.749)^†
Width/Length
Female	0.28 ± 0.06	0.35 ± 0.05	0.38 ± 0.04	0.39 ± 0.04	0.39 ± 0.05
Male	0.29 ± 0.05	0.34 ± 0.06	0.37 ± 0.04	0.39 ± 0.04	0.39 ± 0.04
Combined	0.28 ± 0.05	0.34 ± 0.06	0.39 ± 0.04	0.39 ± 0.04	0.39 ± 0.05
P value^*	0.225 (1.221)	0.630 (0.483)	0.739 (0.334)	0.565 (0.577)	0.601 (0.525)

Note:—Data are presented as mean ± SD. DRG indicates dorsal root ganglion.
* t test between women and men (t values in parentheses).
† The width and length of the L1 and L2 DRGs, and the width of the L5 DRGs differ statistically between men and women.