Table 5.
Prevalence, Factor Loadings, IRT Parameters and Fit Statistics: Opioids
| Opioid Abuse (A) and Dependence (D) Criteria |
Prevalence (%) | Model With Legal Problems Criterion | Model Without Legal Problems Criterion | ||||
|---|---|---|---|---|---|---|---|
| Factor Loadings | Discrimination estimate a (SE) | Severity estimate b (SE) | Factor Loadings | Discrimination estimate a (SE) | Severity estimate b (SE) | ||
| Tolerance (D) | 12.07 | 0.867 | 1.90 (0.05) | 1.64 (0.06) | 0.868 | 1.90 (0.05) | 1.64 (0.06) |
| Withdrawal (D) | 8.43 | 0.912 | 1.93 (0.06) | 1.93 (0.07) | 0.912 | 1.93 (0.06) | 1.93 (0.07) |
| Larger/Longer (D) | 10.80 | 0.833 | 1.88 (0.05) | 1.73 (0.06) | 0.833 | 1.89 (0.05) | 1.73 (0.06) |
| Quit/Control (D) | 28.32 | 0.666 | 1.75 (0.05) | 0.74 (0.04) | 0.669 | 1.76 (0.05) | 0.73 (0.04) |
| Time spent (D) | 10.96 | 0.909 | 1.94 (0.06) | 1.67 (0.06) | 0.911 | 1.95 (0.06) | 1.67 (0.06) |
| Activities given up (D) | 5.34 | 0.799 | 1.85 (0.05) | 2.35 (0.08) | 0.797 | 1.85 (0.05) | 2.35 (0.08) |
| Physical/Psychological problems (D) | 8.87 | 0.883 | 1.92 (0.06) | 1.89 (0.07) | 0.885 | 1.92 (0.06) | 1.89 (0.07) |
| Neglect roles (A) | 7.66 | 0.831 | 1.88 (0.05) | 1.95 (0.07) | 0.829 | 1.88 (0.05) | 1.95 (0.07) |
| Hazardous use (A) | 19.78 | 0.739 | 1.82 (0.05) | 1.09 (0.05) | 0.737 | 1.82 (0.05) | 1.09 (0.05) |
| Social/Interpersonal problems (A) | 14.21 | 0.782 | 1.85 (0.05) | 1.44 (0.06) | 0.776 | 1.84 (0.05) | 1.44 (0.05) |
|
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| Legal problems (A) | 2.26 | 0.586 | 1.79(0.05) | 2.95 (0.11) | |||
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| Comparative Fit Index (CFI) | 0.986 | 0.987 | |||||
| Tucker Lewis Index (TLI) | 0.983 | 0.983 | |||||
| Root mean squared error of approximation (RMSEA) | 0.031 | 0.035 | |||||
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| Bayesian Information Criterion (BIC) | 10672.01 | 10330.94 | |||||