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344 Xu et al. | Journal of Clinical and Translational Research 2023; 9(5): 340-346

Table 3. Correlations between cervical and distal spinal parameters in the four groups
Cervical parameters Distal spinal parameters Group A: ≤20 years Group B: 21 – 40 years Group C: 41 – 60 years Group D: ≥61 years
C0–1 CA TK −0.036 0.135 0.191 0.263
LL 0.108 −0.083 −0.058 −0.168
SS 0.146 0.114 0.056 −0.151
PT −0.139 0.055 0.297 0.113
PI −0.016 0.127 0.283 −0.020
C7–S1 SVA 0.031 0.019 −0.051 −0.190
C1–2 CA TK 0.238 −0.127 −0.216 −0.119
LL −0.086 -0.002 0.151 0.343
SS −0.092 0.019 0.026 0.018
PT −0.083 −0.028 −0.134 −0.095
PI −0.169 −0.006 −0.098 −0.052
C7–S1 SVA −0.129 0.085 −0.121 −0.087
CO-2 CA TK 0.084 0.018 −0.064 0.177
LL 0.065 −0.109 0.101 0.103
SS 0.075 0.169 0.066 -0.142
PT −0.147 0.037 0.093 0.041
PI −0.087 0.156 0.117 −0.063
C7–S1 SVA −0.155 0.127 −0.153 −0.268
C2–7 CA TK −0.236 −0.362* −0.502** −0.655**
LL 0.105 0.195 0.389* 0.202
SS 0.136 −0.075 0.221 −0.103
PT −0.155 −0.057 −0.177 0.155
PI −0.041 −0.099 −0.022 0.039
C7–S1 SVA 0.022 0.048 0.201 0.163
C2–7 SVA TK 0.076 −0.141 -0.361* 0.105
LL 0.116 −0.064 0.134 0.080
SS 0.045 0.265 0.362* 0.628**
PT 0.240 −0.378* 0.045 −0.191
PI 0.291 −0.075 0.247 0.273
C7–S1 SVA 0.213 0.322 0.460** 0.581**
NT TK 0.312 0.087 0.068 −0.094
LL 0.324 −0.064 0.065 −0.273
SS −0.299 −0.333 −0.098 −0.185
PT 0.292 0.255 0.146 −0.134
PI 0.038 −0.067 0.067 −0.209
C7–S1 SVA −0.328 −0.193 −0.161 0.021
TS TK 0.443* 0.664** 0.529** 0.757**
LL 0.131 −0.284 −0.213 −0.155
SS −0.024 0.243 −0.198 0.331
PT 0.319 −0.153 −0.068 −0.151
PI 0.312 0.073 −0.171 0.110
C7–S1 SVA −0.003 −0.047 −0.285 0.180
TIA TK 0.448* 0.486** 0.382* 0.479**
LL 0.296 −0.235 −0.056 −0.360*
SS −0.223 −0.193 −0.220 0.081
PT 0.370* 0.168 0.115 −0.233
PI 0.187 −0.024 −0.030 −0.106
C7–S1 SVA −0.233 −0.225 −0.338 0.153
*P<0.05; **P<0.01.
Abbreviations: C0-1 CA: C0-1 Cobb angle; C1-2 CA: C1-2 Cobb angle; C0-2 CA: C0-2 Cobb angle; C2-7 CA: C2-7 Cobb angle; C2-7 SVA: C2-7 sagittal vertical axis;
NT: Neck tilt; TS: T1 slope; TIA: Thoracic inlet angle; TK: Thoracic kyphosis; LL: Lumbar lordosis; SS: Sacral slope; PT: Pelvic tilt; PI: Pelvic incidence; C7-S1 SVA: C7-S1 sagittal vertical axis
DOI: http://dx.doi.org/10.18053/jctres.09.202305.23-00059