The predictive ability of occipital to C3 angle for dysphagia after occipitocervical fusion in patients with combined C2–3 Klippel-Feil syndrome

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

Predictors for dnPAS	Unstandardized coefficients			95.0% Confidence interval
Predictors for dnPAS	B	SE	β	Lower limit	Upper limit	t Value	p
dO-Da	0.017	0.009	0.276	−0.002	0.036	1.821	0.077
dO-C3a	0.045	0.012	0.670	0.022	0.069	3.899	<0.001*
dO-C2a	−0.012	0.011	− 0.214	−0.034	0.009	−1.163	0.253
dOc-Axa	0.009	0.009	0.142	−0.009	0.027	1.061	0.296
(Constant)	−0.063	0.049		−0.162	0.036	−1.288	0.206

Adjusted R² = 0619, P < 0.001
dO-C3a, dO-C2a, dO-Da and dOc-Axa, the difference between final follow-up and preoperative O-C3a, O-C2a, O-Da and Oc-Axa; dnPAS, the difference between final follow-up and preoperative minimum width of the oropharyngeal airway space

ISSN: 1471-2474