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Table 1 Sociodemographic characteristics of adolescents by locality of residence and gender (n = 17,974)*

From: Socioeconomic status, urbanicity and risk behaviors in Mexican youth: an analysis of three cross-sectional surveys

   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
  1. *SES = Socioeconomic status by quartile; M = male; F = female.
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