High efficiency pathway for lower limb orthopedic surgery: A matched historic cohort study

Table 4 Pre- and post-match baseline demographic characteristics in the below ankle or at and above ankle surgery subgroup

	Pre-match			Post-match
	Traditional	High efficiency	SD	Traditional	High efficiency	SD
Below ankle	n = 317	n = 718		n = 312	n = 312
Female, n (%)	224 (70.1)	545 (75.9)	0.12	220 (70.5)	230 (73.7)	0.07
Age (year), mean (SD)	56.9 (13.4)	57.5 (13.1)	0.04	56.8 (13.5)	57.3 (12.9)	0.05
BMI (kg/m2), mean (SD)	29.7 (6.5)	28.0 (5.6)	0.30	29.3 (6.0)	28.9 (6.1)	0.07
ASA I and II, n (%)	198 (62.4)	522 (72.7)	0.23	198 (63.5)	200 (64.1)	0.04
Above ankle	n = 236	n = 120		n = 114	n = 114
Female, n (%)	118 (50.0)	74 (61.7)	0.24	68 (59.6)	70 (61.4)	0.04
Age (year), mean (SD)	46.1 (15.8)	46.5 (16.6)	0.03	45.6 (16.2)	45.8 (16.2)	0.01
BMI (kg/m2), mean (SD)	29.2 (6.4)	28.4 (5.7)	0.15	28.8 (6.1)	28.6 (5.6)	0.03
ASA I and II, n (%)	182 (77.1)	100 (83.3)	0.17	98 (86.0)	96 (84.2)	0.05

BMI: Body mass index; ASA: American Society of Anesthesiologists.