Table 3.
Correlations between risk-standardized mortality rates and between risk-standardized readmission rates for subgroups of hospitals
| Mortality Measures | Readmission Measures | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AMI and HF | AMI and PN | HF and PN | AMI and HF | AMI and PN | HF and PN | |||||||||
| Description | N | r | P | r | P | r | P | N | r | P | r | P | r | P |
| All | 4,559 | 0.30 | 0.27 | 0.41 | 4,468 | 0.38 | 0.32 | 0.47 | ||||||
| Hospitals with ≥ 25 patients | 2,872 | 0.33 | 0.30 | 0.44 | 2,467 | 0.44 | 0.38 | 0.51 | ||||||
| Number of beds | 0.15 | 0.005 | 0.0009 | <.0001 | <.0001 | <.0001 | ||||||||
| > 600 | 157 | 0.38 | 0.43 | 0.51 | 156 | 0.67 | 0.50 | 0.66 | ||||||
| 300 to 600 | 628 | 029 | 0.30 | 0.49 | 626 | 0.54 | 0.45 | 0.58 | ||||||
| < 300 | 3,588 | 0.27 | 0.23 | 0.37 | 3,505 | 0.30 | 0.26 | 0.44 | ||||||
| Ownership | 0.021 | 0.05 | 0.39 | 0.0004 | 0.0004 | 0.003 | ||||||||
| Not-for-profit | 2,650 | 0.32 | 0.28 | 0.42 | 2,619 | 0.43 | 0.36 | 0.50 | ||||||
| For profit | 672 | 0.30 | 0.23 | 0.40 | 663 | 0.29 | 0.22 | 0.40 | ||||||
| Government | 1,051 | 0.24 | 0.22 | 0.39 | 1,005 | 0.32 | 0.29 | 0.45 | ||||||
| Teaching status | 0.11 | 0.08 | 0.0012 | <.0001 | 0.0002 | 0.0003 | ||||||||
| COTH | 277 | 0.31 | 0.34 | 0.54 | 276 | 0.54 | 0.47 | 0.59 | ||||||
| Teaching | 505 | 0.22 | 0.28 | 0.43 | 503 | 0.52 | 0.42 | 0.56 | ||||||
| Non-Teaching | 3,591 | 0.29 | 0.24 | 0.39 | 3,508 | 0.32 | 0.26 | 0.44 | ||||||
| Cardiac facility type | 0.022 | 0.006 | <.0001 | <.0001 | 0.0006 | 0.004 | ||||||||
| CABG | 1,471 | 0.33 | 0.29 | 0.47 | 1,467 | 0.48 | 0.37 | 0.52 | ||||||
| Cath lab | 578 | 0.25 | 0.26 | 0.36 | 578 | 0.32 | 0.37 | 0.47 | ||||||
| Neither | 2,324 | 0.26 | 0.21 | 0.36 | 2,242 | 0.28 | 0.27 | 0.44 | ||||||
| Core based statistical area | 0.0001 | <.0001 | 0.002 | <.0001 | <.0001 | <.0001 | ||||||||
| Division | 621 | 0.38 | 0.34 | 0.41 | 618 | 0.46 | 0.40 | 0.56 | ||||||
| Metro | 1,850 | 0.26 | 0.26 | 0.42 | 1,835 | 0.38 | 0.30 | 0.40 | ||||||
| Micro | 801 | 0.23 | 0.22 | 0.34 | 788 | 0.32 | 0.30 | 0.47 | ||||||
| Rural | 1,101 | 0.21 | 0.13 | 0.32 | 1,046 | 0.22 | 0.21 | 0.44 | ||||||
| Safety net status | 0.001 | 0.027 | 0.68 | 0.029 | 0.037 | 0.28 | ||||||||
| No | 2,995 | 0.33 | 0.28 | 0.41 | 2,967 | 0.40 | 0.33 | 0.48 | ||||||
| Yes | 1,377 | 0.23 | 0.21 | 0.40 | 1,319 | 0.34 | 0.30 | 0.45 | ||||||
AMI: Acute myocardial infarction; HF: heart failure; PN: pneumonia; N: number of hospitals; r: Pearson correlation coefficient; COTH: Member of Council of Teaching Hospitals; CABG: Coronary artery bypass surgery capability; Cath lab: cardiac catheterization lab capability
p value is the minimum p value of pairwise comparisons within each subgroup