Table 3.
Type III Sums of Squares Table
| Source | DF | Chi-square | Pr > ChiSq |
|---|---|---|---|
| Opioid analgesic dose | 4 | 120.88 | <0.0001 |
| Interval | 1 | 2.14 | 0.1439 |
| Age | 1 | 38.26 | <0.0001 |
| Gender | 1 | 8.15 | 0.0043 |
| U.S. region | 3 | 1.83 | 0.6076 |
| Back pain | 1 | 0.16 | 0.6897 |
| Large joint arthritis, other musculoskeletal | 1 | 5.15 | 0.0233 |
| Neuropathy | 1 | 1.11 | 0.2921 |
| Chronic pain (unspecified) | 1 | 39.03 | <0.0001 |
| Headache | 1 | 0.11 | 0.7406 |
| Depression | 1 | 102.29 | <0.0001 |
| Anxiety or PTSD | 1 | 0.06 | 0.8135 |
| Psychosis | 1 | 66.59 | <0.0001 |
| Alcohol abuse | 1 | 152.28 | <0.0001 |
| Other substance abuse | 1 | 122.12 | <0.0001 |
| Antidepressant therapy | 3 | 11.77 | 0.0082 |
| Benzodiazepine therapy | 3 | 127.39 | <0.0001 |
| Zolpidem therapy | 3 | 11.2 | 0.0107 |
| Opioid × Depression | 4 | 36.53 | <0.0001 |
| Antidepressant therapy × Depression | 3 | 20.2 | 0.0002 |
| Benzodiazepine therapy × Anxiety or PTSD | 3 | 10.36 | 0.0157 |
| Zolpidem therapy × Anxiety or PTSD | 3 | 8.79 | 0.0300 |