TABLE 3.

Association with postoperative tachyarrhythmia and atrioventricular block with length of stay and ventilation time (days)

	Unadjusted least-squares means, d (95% CI)	P value	Adjusted* least-squares means, d (95% CI)	P value
Tachyarrhythmia
Postoperative length of stay
Tachyarrhythmia	48 (41–55)	<.001	49 (43–56)	<.001
No arrhythmia	31 (28–34)		31 (28–34)
Postoperative ventilation time
Tachyarrhythmia	26 (19–34)	<.001	27 (20–34)	<.001
No arrhythmia	11 (8–13)		11 (8–14)
Atrioventricular block
Postoperative length of stay
Atrioventricular block	64 (50–79)	<.001	58 (42–73)	.007
No arrhythmia	31 (28–34)		32 (29–34)
Postoperative ventilation time
Atrioventricular block	27 (15–38)	.002	26 (15–38)	.002
No arrhythmia	11 (9–13)		11 (9–13)

CI, Confidence interval.

^*Adjusted for gestational age, presence of genetic syndrome, age at time of Norwood procedure, race, gender, shunt type received, anatomy subtype, prenatal diagnosis, total support time during the Norwood procedure, ultrafiltration during or after Norwood procedure, use of extracorporeal membrane oxygenation during the Norwood procedure, presence of postoperative moderate/severe tricuspid regurgitation by echocardiography, and center volume.