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Table 5 Correlations of the postoperative parameters (n =50)

From: Cervical kyphosis in patients with Lenke type 1 adolescent idiopathic scoliosis: the prediction of thoracic inlet angle

  C2-7 angle TIA T1 slope C2-7 SVA PTK TK Cobb
C2-7 angle r / −0.613a −0.840a 0.191 −0.698a −0.447a −0.279a
P / 0.000 0.000 0.185 0.000 0.001 0.049
TIA r −0.613a / 0.692a −0.075 0.544a 0.324a 0.274
P 0.000 / 0.000 0.606 0.000 0.022 0.054
T1 slope r −0.840a 0.692a / 0.159 0.796a 0.423a 0.300a
P 0.000 0.000   0.269 0.000 0.002 0.034
N 50 50 50 50 50 50 50
C2-7 SVA r 0.191 −0.075 0.159 / 0.293a −0.129 −0.097
P 0.185 0.606 0.269 / 0.039 0.370 0.503
PTK r −0.698a 0.544a 0.796a 0.293a / 0.128 0.057
P 0.000 0.000 0.000 0.039 / 0.378 0.692
TK r −0.447a 0.324a 0.423a −0.129 0.128 / 0.453a
P 0.001 0.022 0.002 0.370 0.378 / 0.001
Cobb r −0.279a 0.274 0.300a −0.097 0.057 0.453a /
P 0.049 0.054 0.034 0.503 0.692 0.001 /
  1. AIS adolescent idiopathic scoliosis, TIA thoracic inlet angle, SVA sagittal vertical axis, PTK proximal thoracic kyphosis, TK thoracic kyphosis, LL lumbar lordosis
  2. aSignificant difference