Table 1.

Clinical Factors and Demographics for Term CHD Neonates in UBC, UCSF, UCZ

	UBC n=76	UCSF n=125	UCZ n=15	p
Males, No. (%)	54 (71.1%)	79 (63.2%)	11 (73.3%)	0.442
Heart lesion type (%) 1. Transposition of the great arteries	52 (68.4%)	55 (45.8%)	11 (73.3%)	0.008*
2. Single ventricle physiology	14 (18.4%)	48 (40%)	2 (13.3%)
3. Others	10 (13.2%)	17 (14.2%)	2 (13.3%)
Birth gestational age, weeks Median [IQR]	39 [38–40]	39 [38–40]	39.2 [38.8–40.1]	0.446
Birth weight, kg Median [IQR]	3.23 [2.94–3.76]	3.25 [2.98–3.58]	3 [2.79–3.46]	0.607
Birth head circumference cm Median [IQR]	34 [33–35]	34 [33–35.4]	34 [33.5–35.5]	0.851
Inborn (%)	45 (59.2%)	49 (39.5%)	6 (40%)	0.022*
Small for gestational age (%)	3 (3.9%)	8 (7.0%)	3 (20%)	0.079
Prenatal diagnosis (%)	41 (53.9%)	55 (44.4%)	2 (13.3%)	0.014*
Apgar score at 5 minutes Median [IQR]	10 [9–10]	10 [9–10]	9 [8–9]	0.002*
SNAP-PE Median [IQR]	19 [7.5–27.5]	15 [11–19.3]	NA	0.226
Lowest saturation level pre- operative (Arterial) Median [IQR]	72 [54–83]	71.5 [57.8–82]	57.5 [32–68.3]	0.008*
Balloon atrial septostomy (%)	42 (55.3%)	34 (28.3%)	9 (60%)	<0.001*
Cardiopulmonary bypass time, minutes Median [IQR]	157 [132–206]	124 [101.3–146]	187 [170.3–207.5]	<0.001*
Deep hypothermic circulatory arrest, minutes Median [IQR]	0 [0–5.5]	0 [0–6]	0 [0–0]	0.009
Lowest mean blood pressure post-operative day 1, mmHg Median [IQR]	40 [36.3–43]	NA	38 [35–39]	0.028*
Age at MRI, weeks Median [IQR]	40.3 [39.3–41.6]	40.4 [39.4–41.7]	40.6[39.8–42.6]	0.591
Stroke (%)	17 (23.3%)	25 (23.4%)	3 (33.3%)	0.79