Table 1.

Preoperative characteristics of the patients

Characteristic	Unmatched				Matched
	UFT (n=69)	Non-UFT (n=126)	p-value	D	UFT (n=47)	Non-UFT (n=47)	p-value	D
Sex (male)	33 (47.8)	64 (50.8)	0.692	0.0655	23 (48.9)	21 (44.7)	0.679	0.0943
Age (mo)	47.8±64.7	21.1±53.3	<0.001	0.5005	35.8±53.6	28.8±36.3	0.459	0.2179
Weight (kg)	18.2±21.9	9.2±6.2	<0.001	0.5005	13.3±9.5	11.5±7.9	0.316	0.2958
Height (cm)	92.9±27.3	73.8±20.4	<0.001	0.5005	87.8±21.7	82.8±21.7	0.264	0.3300
Body surface area	0.637±0.362	0.427±0.207	<0.001	0.5005	0.560±0.251	0.506±0.229	0.278	0.3203
Diagnosis			<0.001				0.027
VSD	38 (55.1)	22 (17.5)			24 (51.1)	17 (36.2)
ASD	19 (27.5)	38 (30.2)			13 (27.7)	8 (17.0)
VSD+ASD	4 (5.8)	36 (23.8)			4 (8.5)	10 (21.3)
Others	8 (11.6)	30 (23.8)			6 (12.8)	12 (25.5)
Pulmonary hypertension	1 (1.4)	16 (12.7)	0.008	1.2634	1 (2.1)	3 (6.4)	0.617	0.6302
Extracardiac anomalies	1 (1.4)	5 (4.0)	0.426	0.5696	0	1 (2.1)	>0.999
Operating time (min)	200.7±92.7	238.4±49.1	<0.001	0.5005	208.7±59.3	213.6±45.8	0.610	0.1499
CPB time (min)	89.5±33.2	109.4±30.8	<0.001	0.5005	94.8±34.6	96.8±29.3	0.763	0.0885
Aortic cross-clamp time (min)	48.4±25.7	62.9±23.2	<0.001	0.5005	55.6±23.6	55.9±22.6	0.961	0.0143
CPB volume (mL)
Priming volume	540.4±516.9	259.9±244.4	<0.001	0.5005	398.3±310.7	331.1±279.0	0.273	0.3237
Cardioplegia volume	473.6±407.4	310.0±215.4	<0.001	0.5005	432.1±252.3	374.9±274.5	0.295	0.3091
Additional blood	26.2±40.0	36.9±37.8	0.066	0.2769	22.6±25.8	26.8±23.9	0.409	0.2431
Input/output balance	−180.4±183.3	−136.3±105.4	0.010	0.3896	−182.7±140.7	−173.6±142.0	0.757	0.0908

Value are presented as number (%) or mean±standard deviation.

UFT, ultra-fast-track; D, standardized difference; VSD, ventricular septal defect; ASD, atrial septal defect; CPB time, cardiopulmonary bypass time.