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

Table 7 Measured outcomes in pre- and post-matched samples with difference in mean in above ankle procedures

	Pre-match1		Post-match2		Mean difference (95%CI)	P value	E value (5%CL)
	Traditional (n = 235)	High efficiency (n = 120)	Traditional (n = 116)	High efficiency (n = 116)
Total recovery time (minute), median [IQR]	130 [103-166]	60 [48-82]	131 [103-166]	60 [48-81]	-67 (-77 to -56)	< 0.001	7.9 (5.9)
Preoperative time (minute), median [IQR]	42 [32-59]	42 [31-59]	41 [33-59]	41 [31-60]	0 (-5 to 5)	0.97	4.6 (3.4)
Operating time (minute), median [IQR]	59 [46-73]	34 [26-45]	58 [44-78]	35 [27-46]	-22 (-27 to -17)	< 0.001
Total length of stay (minute), median [IQR]	330 [281-383]	225 [200-274]	327 [286-378]	226 [200-274]	-101 (-117 to -82)	< 0.001	7.6 (5.6)

¹Outcomes under pre-matched samples were unadjusted, presented as median and IQR, or number and percentage.

²Outcomes from matched samples were adjust from multivariable regression model taking age, body mass index, sex, American Society of Anesthesiologists as co-variates, presented as median and IQR, or number and percentage.