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Table 3 Pearson’s coefficients between radiographic parameters and PFT results after traction (n = 30)

From: Clinical efficacy of short-term pre-operative halo-pelvic traction in the treatment of severe spinal deformities complicated with respiratory dysfunction

  Major Cobb Kyphosis Cobb
Coefficient p value Coefficient p value
FVC −0.253 0.052 0.158 0.224
FVC % −0.240 0.063 0.141 0.276
FEV1 −0.234 0.076 0.211 0.104
FEV1% −0.245 0.193 0.160 0.218
  1. : The improvements in the PFT results. For example, FVC means the improvement of FVC in post-traction compared with that in pre-traction