|  |  | Hierarchical stepwise regression analysis | |||||
---|---|---|---|---|---|---|---|---|
 | Simple correlation | Model 1 | Model 2 | Model 3 | ||||
Baseline variables | r | P | β | P | β | P | β | P |
Sex (male = 1, female = 0) | -0.047 | 0.148 | - | - | - | - | - | - |
Age | -0.311 | <0.001 | -0.316 | <0.001 | -0.296 | <0.001 | -0.295 | <0.001 |
Duration of illness | 0.051 | 0.376 | - | - | - | - | Â | - |
Treatment regimen (diet only = 1, medication = 0) | -0.249 | <0.001 | -0.177 | 0.001 | -0.155 | 0.005 | -0.157 | 0.005 |
No. of microvascular complications of diabetes | 0.168 | <0.001 | 0.177 | 0.001 | 0.170 | 0.003 | 0.163 | 0.003 |
DTSQ | -0.219 | <0.001 | NI | NI | -0.120 | 0.030 | NI | NI |
W-BQ12 | -0.125 | 0.030 | NI | NI | - | - | - | - |
PAID | 0.220 | <0.001 | NI | NI | NI | NI | 0.131 | 0.017 |
SES | -0.030 | 0.607 | NI | NI | - | - | - | - |
Social Support Scale | -0.052 | 0.367 | NI | NI | - | - | - | - |
Self-Efficacy Scale | -0.187 | <0.001 | NI | NI | - | - | - | - |
Adjusted R2 | Â | Â | 0.164 | Â | 0.178 | Â | 0.178 | Â |
F | Â | Â | 20.8 | <0.001 | 17.2 | <0.001 | 17.2 | <0.001 |