From: Locus of control moderates the relationship between headache pain and depression
 | Model I | Model II | Model III |
---|---|---|---|
Headache severity | 1.77* | 1.43 | 1.45 |
Self-efficacy | Â | 1.01 | 1.01 |
Internal locus of control | Â | 0.89** | 0.91* |
Age | Â | Â | 1.04 |
Education | Â | Â | 0.95 |
Female | Â | Â | 2.20 |