Robust equal variance test for NOEP risk-adjusted indicators
| 2012 | 2013 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Robust equal variance test—NOEP risk-adjusted indicators | SD UH | SD GH | W50—median | Pr>F | SD UH | SD GH | W50—median | Pr>F | Higher variability in 2012 | Higher variability in 2013 |
| Outcome indicators | ||||||||||
| AMI: 30-day mortality | 3.3 | 3.8 | 0.8 | 0.4 | 2.6 | 3.7 | 2.8 | 0.1 | GH | GH |
| AMI without PTCA: 30-day mortality | 4.8 | 6.2 | 1.1 | 0.3 | 4.4 | 6.6 | 2.3 | 0.1 | GH | GH |
| AMI with PTCA within 2 days: 30-day mortality | 1.4 | 1.9 | 1.4 | 0.2 | 1.8 | 2.1 | 0.4 | 0.5 | GH | GH |
| AMI with PTCA after 2 days: 30-day mortality | 1.6 | 1.4 | 0.5 | 0.5 | 1.2 | 1.4 | 0.9 | 0.3 | UH | GH |
| AMI: 1-year mortality | 1.9 | 4.4 | 5.6 | 0.02* | 3.3 | 3.7 | 0.1 | 0.7 | GH* | GH |
| AMI: MACCE after 1 year | 4.1 | 5.3 | 2.1 | 0.2 | 3.2 | 5.5 | 4 | 0.04* | GH | GH* |
| Isolated aortocoronary bypass: 30-day mortality | 1.4 | 1.6 | 0.0 | 0.9 | 1.6 | 1.4 | 0.0 | 0.9 | GH | UH |
| Valvuloplasty or heart valve replacement: 30-day mortality | 1.3 | 0.5 | 2.7 | 0.1 | 1.2 | 1.0 | 0.2 | 0.6 | UH | UH |
| Congestive heart failure: 30-day mortality | 3.3 | 5.0 | 1.8 | 0.2 | GH | |||||
| Ischaemic stroke: 30-day mortality | 2.9 | 4.5 | 5.9 | 0.02* | 4 | 4.5 | 0.5 | 0.5 | GH* | GH |
| Ischaemic stroke: 30-day readmission | 3.6 | 3.9 | 0.0 | 0.9 | 2.2 | 3.0 | 1.6 | 0.2 | GH | GH |
| COPD exacerbation: 30-day mortality | 2.3 | 3.9 | 3.7 | 0.1 | 2.9 | 4.1 | 1.2 | 0.3 | GH | GH |
| COPD: 30-day readmission | 2.4 | 4.5 | 5.9 | 0.02* | 3.4 | 4.2 | 1.1 | 0.3 | GH* | GH |
| Proportion of caesarean section | 9.1 | 7.1 | 1.3 | 0.3 | 9.2 | 7.2 | 1 | 0.3 | UH | UH |
| Femur fracture: 30-day mortality | 1.3 | 2.2 | 5.2 | 0.02* | 2.1 | 2.2 | 0.6 | 0.5 | GH* | GH |
| Femur fracture: percentage of operations carried out within 2 days | 16.7 | 18.1 | 0.8 | 0.4 | GH | |||||
| Colon cancer surgery: 30-day mortality | 2.7 | 2.3 | 0 | 0.9 | 1.7 | 2.5 | 2.5 | 0.1 | UH | GH |
*p-value<0.05.
AMI, acute myocardial infarction; COPD, chronic obstructive pulmonary disease; GH, general hospital; MACCE, major adverse cardiac and cerebrovascular event; NOEP, National Outcome Evaluation Programme; PTCA, percutaneous transluminal coronary angioplasty; UH, university hospital.