Table 3.
Summary of Top 10 Predictors in the Testing Data.
| Predictors | OUD Risk | Non-OUD (n = 309,990) |
OUD (n = 6409) |
|||||
|---|---|---|---|---|---|---|---|---|
| < 1 year | ≥ 1 year | < 1 year | ≥ 1 year | χ 2 | rφ | p | ||
| Opioid-related poisoning | Increase | 99.04% | 0.96% | 77.36% | 22.64% | 212,393 | .82 | <0.001 |
| Sedative hypnotic-related disorders | Increase | 99.76% | 0.24% | 93.45% | 6.55% | 6822 | .15 | <0.001 |
| Polysubstance-related disorders | Increase | 97.56% | 2.44% | 58.75% | 41.25% | 30,293 | .31 | <0.001 |
| Long-term use indicator | Increase | 81.06% | 18.94% | 32.66% | 67.34% | 9221 | .17 | <0.001 |
| Amphetamine-related disorders | Increase | 99.17% | 0.83% | 77.16% | 22.84% | 24,150 | .28 | <0.001 |
| Cocaine-related disorders | Increase | 99.23% | 0.77% | 87.64% | 12.36% | 8480 | .16 | <0.001 |
| High opioid dosage | Increase | 99.55% | 0.45% | 94.10% | 5.90% | 3347 | .10 | <0.001 |
| Cannabis-related disorders | Increase | 98.43% | 1.57% | 90.72% | 9.28% | 2200 | .08 | <0.001 |
| Low opioid dosage | Decrease | 2.47% | 97.53% | 14.98% | 85.02% | 3709 | .11 | <0.001 |
| Hallucinogen-related disorders | Increase | 99.63% | 0.37% | 98.36% | 1.64% | 257 | .03 | <0.001 |
Note. The predictors were presented in the order of ranked importance. The percentage values were calculated based on the proportion of < 1 year and ≥ 1 year in patients’ subgroups based on the OUD label, two-way χ 2 , rφ and p values were calculated based on raw counts.