Table 3.
Multivariable analysis of risk factors for readmission within 90 days
| Univariablea | Multivariableb | |||||
|---|---|---|---|---|---|---|
| Odds Ratio | 95% CI | P Value | Odds Ratio | 95% CI | P Value | |
| All‐cause readmission | ||||||
| OSA | 2.38 | 1.47, 3.83 | <0.01 | 2.67 | 1.54, 4.60 | <0.01 |
| Age | 0.99 | 0.97, 1.01 | 0.43 | 0.99 | 0.90, 1.02 | 0.51 |
| Race (black) | 1.15 | 0.70, 1.90 | 0.57 | 1.04 | 0.58, 1.86 | 0.88 |
| Genderc | NA | NA | NA | NA | NA | NA |
| CAD | 1.01 | 0.62, 1.62 | 0.96 | 1.39 | 0.76, 2.53 | 0.28 |
| AFIB | 1.13 | 0.73, 1.73 | 0.58 | 1.09 | 0.67, 1.75 | 0.73 |
| DM2 | 1.09 | 0.70, 1.68 | 0.69 | 1.27 | 0.77, 2.08 | 0.34 |
| ILD | 0.53 | 0.10, 1.72 | 0.29 | 0.34 | 0.08, 1.40 | 0.13 |
| COPD | 1.25 | 0.80, 1.94 | 0.32 | 1.02 | 0.59, 1.75 | 0.93 |
| Home O2 | 1.53 | 0.92, 2.55 | 0.09 | 1.64 | 0.80, 3.05 | 0.11 |
| Obesity | 0.86 | 0.55, 1.33 | 0.49 | 0.64 | 0.37, 1.10 | 0.10 |
| Depression | 0.87 | 0.46, 1.62 | 0.66 | 0.86 | 0.44, 1.68 | 0.66 |
| Renal dysfunction | 1.28 | 0.82, 1.98 | 0.26 | 1.23 | 0.75, 2.00 | 0.39 |
| LVEF | 1.00 | 0.98, 1.01 | 0.52 | 0.99 | 0.97, 1.01 | 0.21 |
| CHF readmission | ||||||
| OSA | 2.41 | 1.35, 4.28 | <0.01 | 3.21 | 1.58, 6.51 | <0.01 |
| Age | 0.99 | 0.96, 1.02 | 0.41 | 1.01 | 0.97, 1.04 | 0.77 |
| Race (black) | 2.16 | 1.18, 3.93 | 0.01 | 2.57 | 1.23, 5.36 | 0.01 |
| Genderc | NA | NA | NA | NA | NA | NA |
| CAD | 1.10 | 0.58, 2.06 | 0.77 | 1.83 | 0.81, 4.11 | 0.14 |
| AFIB | 1.53 | 0.80, 2.68 | 0.13 | 1.48 | 0.78, 2.78 | 0.22 |
| DM2 | 0.62 | 0.35, 1.08 | 0.09 | 0.74 | 0.38, 1.43 | 0.36 |
| ILD | 0.78 | 0.17, 3.59 | 0.75 | 0.57 | 0.10, 3.18 | 0.52 |
| COPD | 0.85 | 0.47, 1.52 | 0.58 | 0.57 | 0.26, 1.20 | 0.13 |
| Home O2 | 1.48 | 0.78, 2.77 | 0.22 | 1.80 | 0.80, 4.05 | 0.15 |
| Obesity | 0.70 | 0.39, 1.24 | 0.21 | 0.67 | 0.30, 1.39 | 0.27 |
| Depression | 0.78 | 0.33, 1.84 | 0.57 | 0.93 | 0.37, 2.31 | 0.88 |
| Renal dysfunction | 0.76 | 0.42, 1.35 | 0.34 | 0.55 | 0.28, 1.08 | 0.08 |
| LVEF | 0.98 | 0.96, 1.00 | 0.07 | 0.98 | 0.95, 1.00 | 0.11 |
Abbreviations: AFIB, atrial fibrillation; CAD, coronary artery disease; CHF, congestive heart failure; CI, confidence interval; COPD, chronic obstructive pulmonary disease; DM2, diabetes mellitus, type 2; ILD, interstitial lung disease; LVEF, left ventricular ejection fraction; NA, not applicable; OSA, obstructive sleep apnea.
Represents 15 separate logistic regression models (1 for each parameter) with outcome of all‐cause readmission (top) and CHF readmission (bottom).
Represents 1 multivariable logistic regression model including all 15 listed parameters with outcome of all‐cause readmission (top) and CHF readmission (bottom).
Odds ratio for gender not estimable because there were no 30‐day CHF readmissions in female patients.