Table 1.
Sociodemographic characteristics of adolescents by locality of residence and gender (n = 17,974)*
| Type of locality according to number of inhabitants | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Total | Rural | Small semi-urban | Large semi-urban | Urban | |||||
| ≤ 2,500 | > 2,500 & ≤ 15,000 | > 15,000 & ≤ 100,000 | > 100,000 | ||||||
| M | F | M | F | M | F | M | F | ||
| Age (Median) | 17.5 | 17.0 | 17.3 | 17.4 | 17.7 | 17.3 | 17.7 | 17.6 | 17.7 |
| Educational level | |||||||||
| None | 2.9% | 1.2% | 2.1% | 2.9% | 2.4% | 3.2% | 4.30% | 3.0% | 3.6% |
| Elementary school | 33.5% | 32.8% | 39.5% | 30.6% | 33.7% | 31.8% | 36.4% | 32.3% | 28.0% |
| Secondary school | 42.8% | 48.0% | 42.0% | 42.7% | 40.8% | 45.3% | 39.4% | 45.5% | 44.2% |
| High school | 16.8% | 14% | 16.2% | 19.7% | 18.5% | 16.5% | 15.4% | 45.5% | 44.2% |
| Tecnical or profesional studies/College | 3.7% | 1.5% | 2.2% | 3.7% | 4.30% | 2.9% | 4.3% | 5.1% | 6.3% |
| Married/In consensual union | 17.2% | 7.1% | 21.0% | 10.4% | 23.3% | 9.5% | 25.6% | 10.3% | 20.5% |
| Lowest SES | 24.8% | 42.2% | 43.1% | 19.8% | 18.1% | 24.8% | 25.1% | 15.3% | 12.8% |
| Ever smoked | 27.6% | 55.6% | 25.8% | 39% | 15.3% | 36.2% | 14.8% | 35.4% | 14.3% |
| Smokes at present | 8.3% | 18.4% | 2.2% | 16.2% | 1.9% | 14.6% | 2.2% | 15.8% | 2.8% |
| Drinks alcohol | 17.9% | 38% | 17.6% | 25.6% | 10.0% | 22.3% | 9.7% | 21.1% | 7.7% |
| Has initiated sexual activity | 25.8% | 22.6% | 27.4% | 22.3% | 26.9% | 20.1% | 27.9% | 32.2% | 29.3% |
| Condom use on last relation (n = 4,641) | 27.7% | 52.0% | 16.0% | 45.3% | 11.7% | 43.3% | 11.2% | 60.8% | 16.4% |
| n = 17,974 | n = 1,597 | n = 2,126 | n = 2,678 | n = 3,523 | n = 2,273 | n = 3,020 | n = 1,331 | n = 1,426 | |
*SES = Socioeconomic status by quartile; M = male; F = female.