Stepwise backward multiple logistic regression analyses* of association with a rating of “difficult to help”
| Variable | p Value | Wald | df | R |
|---|---|---|---|---|
| *Variables in model: age; sex; extent to which symptoms were explained by organic disease; SF-36 scores (physical function, physical role function, bodily pain, and social function); number of somatic symptoms; PRIME-MD ratings of (1) the presence of any DSM-IV anxiety or depression diagnosis and (2) the presence of major depressive disorder; total HADS score. | ||||
| †Increased difficulty with symptoms which were poorly explained by organic disease. | ||||
| ‡Increased difficulty with poorer physical function. | ||||
| DSM-IV, Diagnostic and Statistical Manual of Mental Disorders, 4th edition; HADS, hospital anxiety and depression scale; PRIME-MD, primary care evaluation of mental disorders; SF-36, medical outcome study 36 item short form health questionnaire. | ||||
| Symptoms explained by organic disease | <0.0005† | 37.6 | 1 | −0.4 |
| Physical function (SF-36) | 0.07‡ | 3.3 | 1 | −0.07 |
| Constant | 0.003 | 8.6 | 1 | |