Table 4.
Distribution of age at smoking initiation by country, weighted.
| All | France | Ireland | Italy | Czech Republic | Sweden | |
|---|---|---|---|---|---|---|
| (n = 2364) | (n = 461) | (n = 515) | (n = 472) | (n = 427) | (n = 489) | |
| Mean age at initiation | 18.2 | 18.1 | 17.9 | 18.6 | 19.6 | 17.1 |
| (ANOVA p-value < 0.01) | ||||||
| Range and quartile distribution of age at initiation | ||||||
| Maximum | 60 | 50 | 50 | 55 | 60 | 45 |
| 75% quartile | 20 | 19 | 20 | 20 | 20 | 18 |
| Median | 17 | 17 | 17 | 18 | 18 | 16 |
| 25% quartile | 15 | 16 | 15 | 15 | 16 | 14 |
| Minimum | 10 | 11 | 10 | 12 | 10 | 11 |
| Age at initiation | ||||||
| <14 | 6.8% | 3.2% | 9.0% | 6.0% | 1.4% | 12.0% |
| 14-15 | 20.7% | 18.1% | 20.2% | 19.7% | 13.7% | 29.3% |
| 16-17 | 24.7% | 29.6% | 23.2% | 22.6% | 25.9% | 23.4% |
| 18-19 | 20.4% | 24.7% | 21.5% | 20.6% | 20.6% | 15.6% |
| 20-21 | 13.3% | 12.7% | 13.0% | 14.3% | 18.2% | 9.6% |
| 22-23 | 4.0% | 3.4% | 3.7% | 5.1% | 3.9% | 3.7% |
| 24-25 | 3.7% | 2.6% | 4.6% | 4.0% | 4.8% | 2.6% |
| 26-27 | 1.0% | 0.8% | 0.7% | 1.1% | 1.9% | 0.9% |
| 28-29 | 0.8% | 0.7% | 1.0% | 0.4% | 0.9% | 1.0% |
| 30+ | 4.6% | 4.2% | 3.1% | 6.2% | 8.7% | 2.0% |