The effect of the difference in C2–7 angle on the occurrence of dysphagia after anterior cervical discectomy and fusion with the zero-P implant system

Table 4 The results of the logistic regression analysis between related factors and dysphagia^a

Related factors	B	P	OR	95%CI
Related factors	B	P	OR	Lower bound	Upper bound
Age	−0.008	0.776	0.992	0.939	1.048
BMI	0.143	0.077	1.154	0.984	1.353
Smoking	1.769	0.001	5.863	2.138	16.082
Estimated blood loss	−0.009	0.126	0.991	0.980	1.002
Prevertebral soft-tissue swelling	1.788	< 0.001	5.975	2.891	12.350
dC_2–7A	0.077	0.018	1.080	1.013	1.151

^aOnly the factors with a P value less than 0.2 in the single factor analysis were included

ISSN: 1471-2474