Table 4.

Multivariate Regression: ASC Utilization and Postoperative Care and Cost.

	ASCOR/β	95% Confidence Interval	p -Value
Surgical cost (β)	−3495.4	−3510.5 to −3480.4	<0.001
90-Day ED return (OR)	0.62	0.31 to 1.21	0.163
90-Day readmission (OR)	2.09	0.61 to 8.54	0.260
1-Year reoperation (OR)	0.75	0.41 to 1.40	0.367
# Of 1-year spine visit (β)	−0.17	−0.39 to 0.06	0.141
# Of 1-year imaging encounters (β)	−0.36	−0.73 to 0.02	0.061
1-Year postoperative care cost (β)	−1125.1	−2210.5 to −39.6	0.042
Total 1-year cost (β)	−4610.7	−5696.4 to −3524.9	<0.001

Controlling for age, sex, ASA, BMI and # of levels.

p-values <0.05 in bold.