Table 4.
Fee‐for‐Service Medicare Subgroup: 30‐Day Outcomes
| 30 d Mortality | 30‐d Mortality Unadjusted HR (95% CI) | 30‐d Mortality Adjusted* HR (95% CI) | 30‐d All‐Cause Readmission | 30‐d All‐Cause Readmission Unadjusted HR (95% CI) | 30‐d All‐Cause Readmission Adjusted* HR (95% CI) | |
|---|---|---|---|---|---|---|
| Northeast | 5% | 1 [reference] | 1 [reference] | 17.06% | 1 [reference] | 1 [reference] |
| Midwest | 4.36% |
0.91 (0.85–0.99) P=0.02 |
1.08 (0.95–1.22) P=0.23 |
14.55% |
0.90 (0.86–0.93) P<0.0001 |
0.92 (0.85–0.99) P=0.03 |
| South | 4.57% |
0.94 (0.88–1.01) P=0.10 |
1.11 (0.99–1.24) P=0.07 |
15.67% |
0.94 (0.90–0.98) P=0.001 |
0.93 (0.86–1.01) P=0.08 |
| West | 4.09% |
0.87 (0.79–0.97) P=0.01 |
1.02 (0.87–1.19) P=0.82 |
13.67% |
0.86 (0.81–0.91) P<0.0001 |
0.90 (0.80–1.00) P=0.05 |
HR indicates hazard ratio.
Factors for adjustment included age, sex, race, anemia, ischemic history, cerebrovascular accident/transient ischemic attack, diabetes mellitus, hyperlipidemia, hypertension, chronic obstructive pulmonary disease/asthma, peripheral vascular disease, renal insufficiency, cigarette smoking in the past year, vital signs and laboratory studies at admission (systolic blood pressure, heart rate, sodium, blood urea nitrogen, left ventricular ejection fraction), and hospital characteristics.