Table 5.

Association of Surgical Technique With Operative Time (Single- and Multi-Level Surgeries)^a.

	Conventional	Computer Assisted	Multivariate Linear Regressionb		P Value
			Coefficient	95% CI
Operative time (minutes)
Single level	185.1 ± 93.5	196.1 ± 90.9	11.2	0.92-21.5	.033
Multi-level	224.2 ± 113.5	251.6 ± 120.7	24.1	12.8-35.3	<.001

Abbreviation: CI, confidence interval.

^aValues in boldface indicate statistical significance (P < .05).

^bEach line represent a separate multivariate logistic regression analysis for each variable and adjusted odds ratio and P value by controlling for all demographics and comorbidities found in Table 1.