TABLE 3.
Preoperative predicted risk scores
| Virginia | Michigan | |||||
|---|---|---|---|---|---|---|
| Pre-expansion | Post-expansion | P-value | Pre-expansion | Post-expansion | P-value | |
| Medicaid | ||||||
| Number of patients | 153 | 157 | 558 | 954 | ||
| PROMM, % | 14.0 (8.7–24.9)a | 13.2 (8.7–21.3) | 0.59 | 11.9 (8.1–20.0) | 11.1 (7.7–17.9) | 0.02 |
| PROM, % | 1.1 (0.6–2.3) | 0.9 (0.6–2.5) | 0.85 | 1.0 (0.5–1.9) | 0.8 (0.5–1.6) | 0.06 |
| Uninsured | ||||||
| Number of patients | 471 | 402 | 468 | 181 | ||
| PROMM, % | 12.4 (8.1–20.9) | 12.0 (8.3–18.6) | 0.56 | 10.8 (7.3–18.4) | 13.5 (8.2–21.5) | 0.006 |
| PROM, % | 0.9 (0.5–1.8) | 0.8 (0.5–1.6) | 0.37 | 0.8 (0.5–1.5) | 1.0 (0.6–1.9) | 0.004 |
| Combined | ||||||
| Number of patients | 624 | 559 | 1026 | 1135 | ||
| PROMM, % | 12.6 (8.2–21.7) | 12.4 (8.4–19.1) | 0.50 | 11.6 (7.6–18.9) | 11.3 (7.8–18.4) | 0.53 |
| PROM, % | 0.9 (0.5–1.9) | 0.9 (0.5–1.8) | 0.46 | 0.9 (0.5–1.7) | 0.9 (0.5–1.7) | 0.78 |
a
Median (interquartile range), all such values
PROM=predicted risk of mortality, PROMM=predicted risk of morbidity or mortality.