Fig. 3From: Predictive ability of pharyngeal inlet angle for the occurrence of postoperative dysphagia after occipitocervical fusionScatter diagrams between dnPAS% and predictive radiographic parameters. dO-EAa (R2 = 0.457) and dPIA (R2 = 0.423) both have obvious correlations with dnPAS%, superior to those with dO-C2a and dC2-7aBack to article page