Table 2.
Hospital volume and risk-standardized rates for each condition in the mortality and readmission cohorts
| Description | Mortality Measures (N=4,559) | Readmission Measures (N=4,468) | ||||
|---|---|---|---|---|---|---|
| AMI | HF | PN | AMI | HF | PN | |
| Total discharges | 558,653 | 1,094,960 | 1,114,706 | 546,514 | 1,314,394 | 1,152,708 |
| Hospital volume | ||||||
| Mean (SD) | 122.54 ( 172.52) | 240.18 ( 271.35) | 244.51 ( 220.74) | 122.32 ( 201.78) | 294.18 (333.2) | 257.99 (228.5) |
| Median (IQR) | 48 (13, 171) | 142 (56, 337) | 178 (87, 336) | 33 (9, 150) | 172.5 (68, 407) | 191 (95, 352.5) |
| Range min, max | 1, 1379 | 1, 2814 | 1, 2241 | 1, 1611 | 1, 3410 | 2, 2359 |
| 30-day risk-standardized rate* | ||||||
| Mean (SD) | 15.7 (1.8) | 10.9 (1.6) | 11.5 (1.9) | 19.9 (1.5) | 24.8 (2.1) | 18.5 (1.7) |
| Median (IQR) | 15.7 (14.5, 16.8) | 10.8 (9.9, 11.9) | 11.3 (10.2, 12.6) | 19.9 (18.9, 20.8) | 24.7 (23.4, 26.1) | 18.4 (17.3, 19.5) |
| Range min, max | 10.3, 24.6 | 6.6, 18.2 | 6.7, 20.9 | 15.2, 26.3 | 17.3, 32.4 | 13.6, 26.7 |
AMI: Acute myocardial infarction; HF: heart failure; PN: pneumonia; SD: standard deviation; IQR: interquartile range
*
Weighted by hospital volume