Multivariate analyses (logistic regression model) for risk of attrition
| Risk factor | Odds ratio | p value |
|---|---|---|
| Age, yr | 0.98 | 0.012 |
| Initial BMI | 0.96 | < 0.001 |
| Surgical clinic | 0.12 | < 0.001 |
| MSK disorder | 0.70 | 0.009 |
| Mental health disease | 1.65 | 0.001 |
| On MH medication* | 0.06 | 0.004 |
| Anxiety with pain attacks | 0.50 | 0.018 |
BMI = body mass index; MH = mental health; MSK = musculoskeletal.
↵* Includes selective serotonin reuptake inhibitors and antipsychotics.