Table 2.
Distribution of patient opioid misuse risk and pain characteristics by depression, stratified by pain location (n = 122).
| Variables, Mean(sd) | CPOL 1 (n = 61) | CLBP 1 (n = 61) | Interaction p-value 4 | ||||
|---|---|---|---|---|---|---|---|
| Not depressed (n = 40) | Depressed (n = 21) | p-value | Not depressed (n = 39) | Depressed (n = 22) | p-value | ||
| Positive opioid misuse (COMM 2 > 9), n(%) | 3 (7.5%) | 14 (66.7%) | <0.001 | 6 (15.4%) | 7 (31.8%) | 0.19 | 0.019 |
| COMM 2 | 5.1 (± 5.1) | 18.1 (± 10.9) | <0.001 | 6.8 (± 7.5) | 12.6 (± 9.1) | 0.01 | 0.016 |
| BPI 3 | |||||||
| Total average pain index | 6.1 (± 1.8) | 7.6 (± 1.2) | <0.001 | 5.8 (± 1.7) | 6.3 (± 1.6) | 0.25 | 0.143 |
| Total average pain interference | 5.7 (± 2.6) | 8.5 (± 0.9) | <0.001 | 6.1 (± 2.1) | 7.8 (± 1.9) | 0.004 | 0.151 |
Note: p-value is for chi-square tests for categorical variables and independent samples t-tests for continuous variables. 1 CPOL: Chronic Pain of Other Location, CLBP: Chronic Low Back Pain; 2 COMM = Current Opioid Misuse Measure (0–68); 3 BPI = Brief Pain Inventory (Average Severity and interference: 0–10); 4 p-value for interaction term of pain location x depression, ANOVA for continuous variables and Breslow-Day test for dichotomous variables.