| Test | Statistic | Rating |
|---|---|---|
| Precision | ||
| Raw provider level rate/standard deviation | 16.2%, 18.5% | |
| Systematic provider -level standard deviation** | 3.7% | High |
| Provider variation as a percentage of total variation** | 1.5% | High |
| Signal ratio** | 28.9% | Low |
| R-Square** | 49.0% | Moderate |
| **APR-DRG, age-, gender- adjusted | ||
| Minimum Bias - APR-DRG risk adjustment | ||
| Signal variance change with risk adjustment | Decreases | Fair |
| Absolute impact: | ||
| Average absolute change (in %) | 33.8% | Fair |
| Relative impact: | ||
| Rank correlation | 0.786 | Good |
| Percent remaining in high decile/low decile | 29.6% / 61.1% | Fair |
| Percent changing more than 2 deciles | 27.4% | Fair |
From: 3, Results
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