Table 5.

Multivariate Logistic Regression of 30-Day Outcomes After ACDF by Anesthesia Cohorts.

	Any Complications				Pulmonary Complication
Anesthesia Groups (Minutes)	OR	95% CI		P Value	OR	95% CI		P Value
1 (48-129)	Reference				Reference
2 (129-156)	1.556	0.746	3.246	.774	2.746	0.545	13.84	.982
3 (156-190)	1.613	0.778	3.345	.905	2.26	0.431	11.852	.620
4 (290-245)	1.815	0.891	3.698	.635	5.621	1.242	25.448	.023
5 (245-1025)	2.711	1.33	5.526	.012	4.675	0.968	22.568	.140
	Intra-/Postoperative Blood Transfusion				VTE
Anestdesia Groups (Minutes)	OR	95% CI		P Value	OR	95% CI		P Value
1 (48-129)	Reference				Reference
2 (129-156)	0.78	0.047	12.912	.696	0.333	0.035	3.207	.204
3 (156-190)	0.855	0.052	14.122	.774	0.667	0.111	4.001	.564
4 (290-245)	2.147	0.215	21.491	.279	1.337	0.298	5.993	.493
5 (245-1025)	1.132	0.083	15.494	.971	2.688	0.71	10.171	.011
	Wound Complication				Total Length of Stay >5 Days
Anestdesia Groups (Minutes)	OR	95% CI		P Value	OR	95% CI		P Value
1 (48-129)	Reference				Reference
2 (129-156)	<0.001	<0.001	>999.999	.9414	1.162	0.586	2.302	.025
3 (156-190)	1.203	0.366	3.959	.944	1.533	0.792	2.967	.359
4 (290-245)	1.001	0.289	3.473	.9488	3.101	1.704	5.643	.0004
5 (245-1025)	2.838	1.017	7.917	.9237	3.606	1.933	6.727	<.0001
	Return to Operating Room
Anestdesia Groups (Minutes)	OR	95% CI		P Value
1 (48-129)	Reference
2 (129-156)	1.389	0.53	3.639	.605
3 (156-190)	1.674	0.658	4.259	.861
4 (290-245)	1.547	0.61	3.924	.894
5 (245-1025)	2.916	1.236	6.878	.0041

Abbreviations: ACDF, anterior cervical discectomy and fusion; OR, odds ratio; CI, confidence interval; VTE, venous thromboembolism.