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Table 1 Sociodemographic characteristics of the group of pregnant adolescents who received care in Belém, Pará, from November 2009 to February 2010

From: Seroprevalence of HIV, HTLV, CMV, HBV and rubella virus infections in pregnant adolescents who received care in the city of Belém, Pará, Northern Brazil

Demographic variable Number Percent
Age group
 12 to 14 52 16.1
 15 to 18 272 83.9
Residence
 Capital 248 76.5
 Interior 76 23.5
Years of education
  < 6 212 65.4
 6–9 102 31.5
  > 9 10 3.1
School dropout
 Yes 107 33.0
 No 186 57.4
 Did not attend school 31 9.6
Age at first intercourse
 9 to 11 6 1.9
 12 to 14 197 60.8
 15 to 17 121 37.3
Age of partner
 12 to 18 150 46.3
 19 to 25 146 45.0
 26 to 42 28 8.7
Condom use
 Sometimes 249 76.9
 Never 75 23.1
Gestational age
 1 to 2 months 104 32.1
 3 to 4 months 98 30.2
 5 to 6 months 112 34.6
 7 to 9 months 10 3.1
Vaccination against HBV
 No 228 70.4
 Yes 87 26.8
 Unknown 9 2.8