. Author manuscript; available in PMC: 2024 May 16.

Published in final edited form as: Spine (Phila Pa 1976). 2020 Apr 15;45(8):E465–E476. doi: 10.1097/BRS.0000000000003310

TABLE 1.

Demographics

	Intraoperative Navigation			Fluoroscopy	P Value
	Microdiscectomy	Laminectomy	MI-TLIF	MI-TLIF	ION Versus Fluoro for MI-TLIF
Number of cases (n)	92	65	75	94
Age (yr)	44.77 ± 15.27	63.56 ± 14.93	57.86 ± 12.94	56.83 ± 14.59	0.632
Sex					0.877
Male	53 (57.6%)	35 (53.8%)	35 (46.7%)	48 (51.1%)
Female	39 (42.4%)	30 (46.2%)	40 (53.3%)	46 (48.9%)
Body mass index (BMI, kg/m²)	26.78 ± 5.25	28.20 ± 6.81	27.17 ± 5.18	27.46 ± 5.40	0.732
American Society of Anesthesiologists (ASA) Class					0.002
1	26 (28.3%)	6 (9.2%)	9 (12.3%)	16 (17.2%)
2	64 (69.6)	55 (84.6%)	60 (82.2%)	53 (57.0%)
3	2 (2.2%)	4 (6.2%)	4 (5.5%)	22 (23.7%)
4	0 (0.0%)	0 (0.0%)	0 (0.0%)	2 (2.2%)