Table 4.
Mediation Analysis on Relationship Between Depressive Symptoms and Pain Severity/Pain Interference
| Pain Severity | Pain Interference | |||||
|---|---|---|---|---|---|---|
| Coefficient | s.e. | p | Coefficient | s.e. | p | |
| Direct effect (Depressive symptoms) | −0.014 | 0.039 | 0.718 | 0.013 | 0.038 | 0.731 |
| Indirect effect (via mediator) | ||||||
| Pain Catastrophizing | 0.135 | 0.036 | < 0.001 | 0.162 | 0.035 | < 0.001 |
| Covariates | ||||||
| Gender | 0.256 | 0.388 | 0.511 | 0.082 | 0.371 | 0.825 |
| Living with spouse | 0.454 | 0.295 | 0.127 | 0.052 | 0.283 | 0.856 |
| No. of comorbidity | 1.049 | 0.285 | < 0.001 | 0.235 | 0.273 | 0.392 |
| No. of pain area | 0.715 | 0.288 | 0.015 | 0.768 | 0.276 | 0.006 |
Notes: Gender was coded as 0=male, 1=female; Living with spouse coded as 0=yes, 1=no; no. of comorbidity was coded as 0=≤2, 1>2; no. of pain area was coded as 0=≤2, 1≤2.