| Variable | VIF | 1/VIF | 
| Health poor | 1.400 | 0.717 | 
| Health good | 1.360 | 0.737 | 
| Schoolyear | 1.300 | 0.768 | 
| Age | 1.240 | 0.808 | 
| Work farmer | 1.060 | 0.945 | 
| Male | 1.040 | 0.957 | 
| Risk yes | 1.040 | 0.965 | 
| Risk no | 1.030 | 0.970 | 
| Familyincome | 1.020 | 0.978 | 
| Mean | VIF | 1.160 |