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External validation. Life expectancy as a function of smoking status at 40 years old
| Smoking status | Age | Men | Women | ||
|---|---|---|---|---|---|
| Our model | Ozasa et al. | Our model | Ozasa et al. | ||
| Former smokers | 40 years | 40.03 | 40.8 | 44.2 | 42.4 |
| Smokers | 35.8 | 38.5 | 39.8 | 42.1 | |
| Non smokers | 42.3 | 42.4 | 46.5 | 46.1 | |
