Adjusted Odds Ratio (95% CI) | ||
---|---|---|
Original 30-day Readmission Model | New 7-day Readmission Model | |
Baseline factors | ||
Age in years, per 10 yearsb | 1.07 (1.04–1.10) | 1.08 (1.03–1.14) |
Widow | 1.27 (1.11–1.45) | 1.13 (0.92–1.40) |
Medicaidb | 1.55 (1.31–1.83) | 1.37 (1.06–1.78) |
Prior ED visit, per visitb | 1.04 (1.02–1.06) | 1.03 (1.01–1.04) |
Prior hospitalization, per hospitalizationb | 1.16 (1.12–1.20) | 1.13 (1.08–1.18) |
Factors from admission day | ||
Nonelective admissionb | 1.42 (1.22–1.65) | 1.40 (1.09–1.80) |
Charlson Comorbidity Index, per pointb | 1.06 (1.04–1.09) | 1.04 (1.01–1.08) |
Laboratory abnormalities within 24 h of admission | ||
Albumin < 2 g/dLb | 1.52 (1.05–2.21) | 1.75 (1.06–2.87) |
Albumin 2–3 g/dL | 1.20 (1.06–1.36) | 1.04 (0.86–1.27) |
Aspartate aminotransferase > 40 U/Lb | 1.21 (1.06–1.38) | 1.34 (1.09–1.63) |
Creatine phosphokinase < 60 mcg/Lb | 1.28 (1.11–1.46) | 1.40 (1.14–1.72) |
Mean corpuscular volume > 100 fL/red cell | 1.32 (1.07–1.62) | 0.86 (0.60–1.23) |
Platelets < 90 × 103/μL | 1.56 (1.23–1.97) | 1.36 (0.94–1.96) |
Platelets > 350 × 103/μL | 1.24 (1.08–1.44) | 1.18 (0.94–1.49) |
Prothrombin time > 35 s | 1.92 (1.73–2.90) | 1.57 (0.84–2.94) |
Factors from hospital stay | ||
Discharge to hospice | 0.23 (0.13–0.40) | 0.41 (0.20–0.86) |
Hospital complications | ||
Clostridium difficile infectionb | 2.03 (1.18–3.48) | 1.96 (0.96–4.00) |
Pressure ulcerb | 1.64 (1.15–2.34) | 1.68 (1.01–2.79) |
Venous thromboembolism | 1.55 (1.03–2.32) | 1.40 (0.76–2.58) |
Factors from discharge day | ||
Laboratory abnormalities at discharge | ||
Blood urea nitrogen > 20 mg/dLb | 1.37 (1.24–1.52) | 1.38 (1.17–1.62) |
Sodium < 135 mEq/Lb | 1.34 (1.18–1.51) | 1.49 (1.24–1.79) |
Hematocrit <= 27% | 1.22 (1.05–1.41) | 1.16 (0.92–1.46) |
Vital sign instability at discharge, per instabilityb | 1.25 (1.15–1.36) | 1.32 (1.17–1.50) |
Length of stay, per dayb | 1.06 (1.04–1.07) | 1.06 (1.04–1.08) |