TABLE 3.

Outcomes in delivery hospitalizations with and without arrhythmias.

	Arrhythmia (n = 36,442)	No arrhythmia (n = 41,540,000)	P-value
All-cause in-hospital mortality	0.95%	0.01%	<0.0001
Adverse pregnancy outcomes
Gestational diabetes mellitus	3.69%	1.74%	0.04
Preterm labor	2.95%	2.41%	<0.0001
Preeclampsia	6.96%	3.58%	<0.0001
Placental abruption	0.67%	0.26%	<0.0001
Placenta previa	0.33%	0.11%	<0.0001
Fetal death	0.21%	0.04%	<0.0001
Obstetrics outcomes
Cesarean section	43.48%	31.97%	<0.0001
CV outcomes
Ischemic stroke	0.08%	0.00%	<0.0001
Cardiogenic shock	0.48%	0.00%	<0.0001
Cardiac arrest	1.32%	0.00%	<0.0001
Acute heart failure	1.55%	0.01%	<0.0001
Other
ICH	0.05%	0.00%	<0.0001

Comparisons were made by ANOVA for continuous variables and a chi-squared for categorical variables. Statistical significance set at p < 0.05. OR, Odds Ratio; CI, Confidence Interval; CV, Cardiovascular; CM, Cardiomyopathy; ICH, Intracranial hemorrhage.