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| Variable | rho | Chi2 | DF | p |
| Age | -0.096 | 6.94 | 1 | 0.0084 |
| Education status | -0.086 | 5.50 | 1 | 0.0191 |
| History of substance abuse | 0.153 | 18.94 | 1 | <0.0001 |
| History of taking any kind of medications for any reason | -0.078 | 4.52 | 1 | 0.0336 |
| The number of treatments | 0.0766 | 6.50 | 1 | 0.0108 |
| Global test | 58.63 | 1 | <0.0001 |
