Thirty-day readmission in patients with heart failure with preserved ejection fraction: Insights from the nationwide readmission database

Table 3 Primary and secondary outcomes

Outcome measures	N (%), linearized standard error, 95%CI
Readmission rate	12812 (21%), 357.43, [12111-13513]
Mortality
Index cases	1727 (2.9%), 76.98, [1576-1878]
Readmission	1012 (7.9%), 56.61, [901-1123]
Mean length of stay
Index cases	5.2, 0.05, [5.15-5.32]
Readmission	6.4, 0.9, [6.21-6.56]
Total charges (in USD)
Index cases	40570, 796.7, [39008-42132]
Readmission	60822, 1662.9, [57561-64083]
Total cost (in USD)
Index cases	11234.2, 154.1, [10932-11536]
Readmission	16065, 349.7, [15379-16751]