Table 3.

Pre-pregnancy characteristics

Variable (n=108)	Number of pregnancies affected
AP* Fontan	34 (31.5%)
Arrhythmia	33 (30.6)
VTE†/thrombus	7 (6.4)
Systemic hypertension	4 (3.7)
Cyanosis‡	18 (16.7)
Baseline saturations	94 (92.96)
NYHA§ class
I	61 (56.4)
II	22 (20.3)
III	5 (4.6)
Ventricular ejection fraction
0%–20%	1 (0.9)
20%–40%	3 (2.7)
40%–60%	51 (47.2)
>60%	24 (22.2)
Medication prior to pregnancy
Cardiac medications	32 (29.6)
Anticoagulation medication	32 (29.6)

Values are n (%), median (Q1, Q3).

^*Atriopulmonary.

^†Venous thromboembolism.

^‡Cyanosis=clinically visible desaturation.

^§New York Heart Association function classification.