Table 3.

Outcomes associated with UFT

Variable	Unmatched				Matched
	UFT (n=69)	Non-UFT (n=126)	p-value	D	UFT (n=47)	Non-UFT (n=47)	p-value	D
Extubation time (min)	40.4±92.7	1259.6±1209.7	<0.001	0.5005	50.2±110.7	716.3±697.2	<0.001	1.027
Intensive care unit LOS (hr)	14.7±24.0	45.8±33.6	<0.001	0.5005	16.3±28.6	28.0±16.8	0.018	0.7163
Hospital LOS (day)	4.8±2.0	6.8±3.2	<0.001	0.5005	5.0±2.2	5.6±3.1	0.303	0.304
Medical costs (×100,000 Korean won)
Total	175.9±33.0	208.8±45.3	<0.001	0.5005	182.6±35.5	187.1±55.6	0.639	0.1378
Surgery	128.8±24.7	149.3±30.0	<0.001	0.5005	132.3±31.5	134.3±26.3	0.737	0.0986
Hospital stay	47.2±13.6	59.5±21.5	<0.001	0.5005	48.3±13.6	54.8±29.0	0.164	0.4127

Value are presented as mean±standard deviation.

UFT, ultra-fast-track; D, standardized difference; LOS, length of stay.