Table 1. Characteristics of the Individuals Aged 16 to 19 Years at Interviewa.
| Characteristic | Year | |||||||
|---|---|---|---|---|---|---|---|---|
| 2001 | 2003 | 2005 | 2007 | 2009 | 2011 | 2013 | 2015 | |
| Age when starting smoking, mean (SD), y | 13.5 (1.8) | 13.5 (1.9) | 13.6 (1.9) | 13.7 (1.9) | 13.8 (1.8) | 14.0 (1.7) | 14.1 (1.8) | 14.2 (1.8) |
| Smoking onset | 82.5 | 81.2 | 77.9 | 79.4 | 76.5 | 63.6 | 64.7 | 65.4 |
| Male | 50.1 | 48.9 | 49.7 | 48.9 | 48.7 | 49.7 | 49.7 | 50.3 |
| Age, y | ||||||||
| 16 | 37.9 | 38.0 | 43.8 | 43.1 | 42.2 | 42.0 | 40.7 | 40.3 |
| 17 | 37.6 | 38.0 | 38.6 | 38.3 | 39.1 | 37.8 | 36.7 | 37.3 |
| 18 | 19.8 | 20.3 | 15.1 | 16.1 | 16.0 | 17.5 | 18.9 | 18.8 |
| 19 | 4.7 | 3.8 | 2.5 | 2.4 | 2.6 | 2.7 | 3.8 | 3.6 |
| Mother’s educational level | ||||||||
| Primary or less | 29.1 | 25.5 | 25.1 | 23.0 | 23.2 | 19.4 | 21.4 | 19.5 |
| Secondary or less | 44.4 | 42.3 | 42.6 | 44.0 | 43.2 | 39.1 | 40.2 | 40.1 |
| More than secondary | 26.5 | 32.3 | 32.4 | 33.0 | 33.6 | 41.5 | 38.4 | 40.4 |
| School type | ||||||||
| Public | 41.4 | 39.2 | 39.7 | 40.5 | 36.2 | 35.3 | 40.5 | 41.6 |
| Subsidized | 36.3 | 44.5 | 44.3 | 51.8 | 48.4 | 42.5 | 43.7 | 43.6 |
| Private | 22.3 | 16.3 | 16.1 | 7.6 | 15.4 | 22.2 | 15.8 | 14.8 |
| Region | ||||||||
| Arica, Parinacota, Tarapacá | 3.2 | 3.0 | 3.0 | 3.4 | 3.4 | 2.7 | 3.2 | 3.2 |
| Antofagasta | 3.0 | 3.0 | 2.9 | 3.5 | 4.1 | 3.0 | 2.4 | 2.0 |
| Atacama | 2.3 | 2.1 | 2.2 | 1.6 | 1.8 | 2.3 | 2.3 | 2.2 |
| Coquimbo | 4.0 | 3.6 | 3.9 | 3.7 | 4.1 | 4.0 | 2.9 | 3.0 |
| Valparaíso | 11.5 | 12.3 | 11.0 | 10.6 | 11.3 | 15.0 | 10.5 | 12.6 |
| O'Higgins | 3.5 | 3.6 | 2.5 | 3.6 | 3.5 | 6.6 | 7.8 | 6.5 |
| Maule | 5.7 | 5.0 | 6.7 | 5.3 | 6.3 | 7.5 | 7.5 | 7.5 |
| Biobío | 11.8 | 12.0 | 10.7 | 11.4 | 12.6 | 11.7 | 11.2 | 12.0 |
| Araucanía | 2.6 | 2.9 | 2.9 | 3.9 | 4.4 | 5.9 | 6.1 | 5.9 |
| Los Lagos | 4.9 | 4.5 | 5.0 | 4.6 | 5.3 | 5.5 | 9.6 | 8.1 |
| Aysén | 0.8 | 0.8 | 0.9 | 0.8 | 1.2 | 1.7 | 1.6 | 1.2 |
| Magallanes | 1.4 | 1.2 | 1.5 | 0.7 | 1.1 | 1.2 | 1.9 | 1.5 |
| Metropolitana de Santiago | 45.4 | 46.3 | 46.8 | 47.1 | 41.0 | 33.0 | 33.0 | 34.4 |
| No. of individuals | 26 167 | 26 039 | 21 896 | 21 964 | 20 401 | 13 926 | 25 966 | 25 265 |
| No. of schools | 1011 | 1046 | 1079 | 1119 | 1137 | 738 | 1326 | 1295 |
| No. of observations | 2 058 414 | 2 039 797 | 1 760 556 | 1 774 302 | 1 691 441 | 1 240 360 | 2 334 393 | 2 278 573 |
a
Data are presented as percentage of survey respondents unless otherwise indicated.