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

Table 2 Independent predictors of 30 d readmission

Variable	Adjusted OR (95%CI)	P value
Age	0.99 (0.99-0.99)	< 0.001
Female gender	0.91 (0.86-0.95)	< 0.001
Insurance provider (compared to medicare)
Medicaid	1.15 (1.05-1.27)	0.004
Private	0.85 (0.77-0.93)	< 0.001
Self-pay	0.70 (0.53-0.93)	0.015
Charlson comorbidity index score	1.08 (1.06-1.09)	< 0.001
Patients admitted to teaching hospital	1.09 (1.04-1.15)	0.001
Length of stay	1.01 (1.01-1.01)	< 0.001
Geographic area (compared to large metropolitan area with at least 1 million residents)
Small (area with < 1 million residents)	0.91 (0.86-0.97)	0.003
Micropolitan area	0.83 (0.77-0.90)	< 0.001
Patients admitted to teaching hospital	1.09 (1.04-1.15)	0.001
Length of stay	1.01 (1.01-1.01)	< 0.001
Geographic area (compared to large metropolitan area with at least 1 million residents)
Small (area with < 1 million residents)	0.91 (0.86-0.97)	0.003
Micropolitan area	0.83 (0.77-0.90)	< 0.001