Table 4.
Unadjusted and Adjusted Mortality Rates of Top 10 Hospitals in Patient Volume in Hawaii
| Disease | Hospital ID | Unadjusted | Adjusted by Model 1 | Adjusted by Model 2 | Adjusted by Model 3 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OMR (%) | Rank | EMR (%) | O/E (90% CI) | Rank | EMR (%) | O/E (90% CI) | Rank | EMR (%) | O/E (90% CI) | Rank | ||
| CHF | Hospital A | 4.07 | 1 | 5.79 | 0.70 (0.50–0.97) | 1 | 4.64 | 0.88 (0.62–1.21) | 4 | 4.68 | 0.87 (0.61–1.20) | 4 |
| Hospital B | 4.89 | 2 | 5.59 | 0.87 (0.69–1.09) | 4 | 5.91 | 0.83 (0.65–1.03) | 3 | 5.91 | 0.83 (0.65–1.03) | 3 | |
| Hospital C | 4.95 | 3 | 6.77 | 0.73 (0.55–1.08) | 2 | 6.59 | 0.75 (0.53–1.04) | 1 | 6.74 | 0.74 (0.52–1.01) | 1 | |
| Hospital D | 5.48 | 4 | 6.53 | 0.84 (0.55–1.23) | 3 | 6.83 | 0.80 (0.52–1.18) | 2 | 6.80 | 0.81 (0.53–1.01) | 2 | |
| Hospital E | 5.97 | 5 | 5.67 | 1.05 (0.76–1.42) | 7 | 6.05 | 0.99 (0.71–1.33) | 5 | 6.14 | 0.97 (0.70–1.31) | 5 | |
| Hospital F | 6.02 | 6 | 6.10 | 0.99 (0.58–1.57) | 5 | 6.00 | 1.00 (0.59–1.18) | 7 | 5.69 | 1.06 (0.63–1.68) | 7 | |
| Hospital G | 6.16 | 7 | 6.00 | 1.03 (0.74–1.39) | 6 | 6.29 | 0.98 (0.70–1.33) | 6 | 5.95 | 1.04 (0.74–1.40) | 6 | |
| Hospital H | 7.20 | 8 | 5.71 | 1.26 (0.97–1.61) | 9 | 5.51 | 1.31 (1.01–1.67) | 9 | 5.51 | 1.31 (1.01–1.67) | 9 | |
| Hospital I | 7.40 | 9 | 6.09 | 1.21 (0.90–1.61) | 8 | 6.32 | 1.17 (0.86–1.55) | 8 | 6.35 | 1.16 (0.86–1.54) | 8 | |
| Hospital J | 9.28 | 10 | 4.87 | 1.90 (1.23–2.82) | 10 | 5.06 | 1.83 (1.18–2.72) | 10 | 5.24 | 1.77 (1.14–2.62) | 10 | |
| AMI | Hospital A | 4.99 | 1 | 6.42 | 0.78 (0.59–1.01) | 2 | 5.94 | 0.84 (0.64–1.09) | 3 | 5.98 | 0.84 (0.64–1.08) | 3 |
| Hospital B | 7.12 | 2 | 6.88 | 1.03 (0.88–1.21) | 6 | 6.61 | 1.08 (0.91–1.26) | 8 | 6.70 | 1.06 (0.90–1.24) | 7 | |
| Hospital C | 7.81 | 4 | 7.83 | 1.00 (0.77–1.27) | 5 | 7.91 | 0.99 (0.76–1.26) | 5 | 7.93 | 0.98 (0.76–1.26) | 5 | |
| Hospital D | 7.55 | 3 | 10.98 | 0.69 (0.47–0.97) | 1 | 10.46 | 0.72 (0.50–1.01) | 1 | 10.86 | 0.70 (0.48–0.98) | 1 | |
| Hospital E | 8.15 | 6 | 9.27 | 0.88 (0.67–1.14) | 3 | 9.84 | 0.83 (0.63–1.08) | 2 | 10.05 | 0.81 (0.61–1.05) | 2 | |
| Hospital F | 9.45 | 7 | 8.49 | 1.11 (0.78–1.54) | 8 | 9.25 | 1.02 (0.72–1.42) | 7 | 8.83 | 1.07 (0.75–1.49) | 8 | |
| Hospital G | 18.15 | 10 | 12.50 | 1.45 (1.16–1.80) | 10 | 12.57 | 1.44 (1.07–1.66) | 10 | 13.09 | 1.39 (1.11–1.72) | 10 | |
| Hospital H | 8.12 | 5 | 8.87 | 0.92 (0.70–1.17) | 4 | 8.80 | 0.92 (0.71–1.18) | 4 | 8.72 | 0.93 (0.72–1.19) | 4 | |
| Hospital I | 11.19 | 8 | 10.66 | 1.05 (0.76–1.41) | 7 | 11.20 | 1.00 (0.73–1.34) | 6 | 10.99 | 1.02 (0.74–1.37) | 6 | |
| Hospital J | 14.29 | 9 | 11.77 | 1.21 (0.72–1.93) | 9 | 11.45 | 1.25 (0.74–1.98) | 9 | 11.09 | 1.29 (0.76–2.05) | 9 | |
Notes 90% CI was computed based on Poisson distribution. CI > 1.0 indicates that the hospital experienced more deaths than expected (in Dark Gray). CI < 1.0 indicates that the hospital experienced less deaths than expected (in Light Gray). CI including 1 indicates that the hospital experienced nothing more or less deaths than expected (in White).
AMI, acute myocardial infarction; CHF, congestive heart failure; EMR, expected (or adjusted) mortality rate; OMR, observed (or crude) mortality rate; O/E, OMR divided by EMR. Smaller value is better; Model 1, 3M Risk of Mortality (ROM) + Gender + Age; Model 2, 3M ROM + Gender + Age + Lab Severity; Model 3, 3M ROM + Gender + Age + Lab Severity + Race/Ethnicity; Rank, hospital rank based on OMR or O/E. Smaller rank order is better.