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The variance inflation factor of each variable.
| Variables | VIF | VIF |
|---|---|---|
| Income | 1.26 | |
| Wage | 1.24 | |
| Gender | 1.61 | 1.58 |
| Marital | 1.25 | 1.24 |
| Age | 1.49 | 1.48 |
| Smoke-do or not | 3.25 | 3.25 |
| Smoke-number | 2.87 | 2.87 |
| Drink | 1.15 | 1.15 |
| Insurance | 1.03 | 1.03 |
| Medical expenses | 1.01 | 1.01 |
| Exercise | 1.10 | 1.11 |
| Education Level | 1.49 | 1.52 |
| Mean VIF | 1.59 | 1.59 |
VIF represents variable inflation factor.
