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Table 3 Multivariate linear regression analysis for the influence of predictors on dnPAS%

From: Predictive ability of pharyngeal inlet angle for the occurrence of postoperative dysphagia after occipitocervical fusion

  Unstandardized
coefficient
Standardized
coefficient
95% Confidence interval
Predictors for dnPAS% B SE β Lower limit Upper limit t value p
dO-C2a 0.200 0.531 0.041 -0.854 1.254 0.376 0.708
dO-EAa 3.126 0.729 0.435 1.678 4.574 4.287 0.000*
dC2-7a -0.256 0.325 -0.064 -0.902 0.390 -0.787 0.433
dPIA 1.358 0.613 0.285 0.141 2.574 2.216 0.029*
Constant 11.528 4.797   2.003 21.054 2.403 0.018*
  1. dnPAS%, [postoperative narrowest oropharyngeal airway space (nPAS) - preoperative nPAS]/preoperative nPAS; dO-C2a, the difference between pre- and postoperative O-C2 angle; dO-EAa, the difference between pre- and postoperative occipital and external acoustic meatus to axis angle; dC2-7a, the difference between pre- and postoperative C2-7 angle; dPIA, the difference between pre- and postoperative pharyngeal inlet angleAdjust R2=0.501, p<0.001*, Indicates statistically significant differences (p<0.05)