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| Degrees of freedom | Estimate | Standard error | p-value | OR | CI | ||
|---|---|---|---|---|---|---|---|
| Age | 1 | 0.0225 | 0.5839 | 0.4448 | 1.023 | 0.965-1.084 | |
| Education (years) | 5-8 | 1 | 1.4416 | 10.0085 | 0.0016 | 17.872 | 2.995-106.648 |
| 9-11 | 1 | 1.1835 | 7.6108 | 0.0058 | 10.665 | 1.984-57.312 | |
| ≥12 | 1 | 1.8207 | 15.9442 | <0.0001 | 38.142 | 6.385-227.838 |
