Table 1. Correlation between clinical and spinal measurements.

Variable	Age	Height	Weight	BMI	SC CSA L1–L5	Spinal canal depth L1–L5	Spinal canal width L1–L5	VB CSA L1–L5
Male
Height	−0.355 (<0.001)
Weight	−0.095 (0.027)	0.416 (<0.001)
BMI	0.048 (0.268)	<0.001 (1.000)	0.905 (<0.001)
Spinal canal CSA L1–L5	0.071 (0.101)	0.186 (<0.001)	0.071 (0.098)	−0.012 (0.781)
Spinal canal depth L1–L5	0.008 (0.860)	0.163 (<0.001)	0.045 (0.302)	−0.032 (0.459)	0.871 (<0.001)
Spinal canal width L1–L5	0.281 (<0.001)	0.126 (0.003)	0.005 (0.912)	−0.061 (0.154)	0.769 (<0.001)	0.610 (<0.001)
Vertebral body CSA L1–L5	0.165 (<0.001)	0.331 (<0.001)	0.255 (<0.001)	0.118 (0.006)	0.293 (<0.001)	0.287 (<0.001)	0.439 (<0.001)
SC CSA/VB CSA L1–L5	−0.031 (0.474)	−0.043 (0.321)	−0.108 (0.012)	−0.098 (0.022)	0.761 (<0.001)	0.644 (<0.001)	0.450 (<0.001)	−0.376 (<0.001)
Female
Height	−0.370 (<0.001)
Weight	0.079 (0.065)	0.347 (<0.001)
BMI	0.243 (<0.001)	−0.048 (0.261)	0.917 (<0.001)
Spinal canal CSA L1–L5	−0.040 (0.349)	0.298 (<0.001)	0.092 (0.033)	−0.033 (0.444)
Spinal canal depth L1–L5	−0.102 (0.018)	0.255 (<0.001)	0.044 (0.313)	−0.066 (0.128)	0.865 (<0.001)
Spinal canal width L1–L5	0.267 (<0.001)	0.143 (<0.001)	0.102 (0.018)	0.045 (0.294)	0.761 (<0.001)	0.553 (<0.001)
Vertebral body CSA L1–L5	0.294 (<0.001)	0.264 (<0.001)	0.269 (<0.001)	0.177 (<0.001)	0.250 (<0.001)	0.196 (<0.001)	0.372 (<0.001)
SC CSA/VB CSA L1–L5	−0.249 (<0.001)	0.047 (0.275)	−0.138 (0.001)	−0.174 (<0.001)	0.692 (<0.001)	0.625 (<0.001)	0.397 (<0.001)	−0.507 (<0.001)

Pearson correlation coefficient between different clinical and spinal measurements. All statistically significant correlations are bolded. SC, spinal canal; VB, vertebral body; CSA, cross-sectional area.