title: [Sexual behavior in adolescents aged 12 to 17 in Andalusia (Spain)].
abstract: OBJECTIVE
  To describe sexual behavior and activity among adolescents aged 12-17 years old in Andalusia (Spain) in 2007-2008.
  
  
  METHODS
  The data for this study were collected through an anonymous questionnaire distributed to a stratified random sample of 2,225 secondary school students in Andalusia. Participation was voluntary.
  
  
  RESULTS
  A total of 388 respondents (18.2%) reported having had complete sexual intercourse, with no statistically significant differences between boys (18.0%) and girls (18.5%). However, boys initiated the following practices earlier than girls: sexual activity (14 years versus 14.4 years), masturbation (11.3 years versus 12.7 years), oral sex (13.8 years versus 14.6 years) and mutual masturbation (13.7 years versus 14.4 years). Other gender differences included the number of sexual partners (two in boys versus 1.6 in girls), recent sexual activity (higher in girls), internet sex (higher in boys), contraceptive use during the first coitus (lower in boys) and knowledge about double-barrier methods of contraception and sexually transmitted diseases (higher in girls).
  
  
  CONCLUSIONS
  One out of six Andalusian secondary education students had had sexual intercourse. Two-thirds of the students were sexually active, especially girls, with limited knowledge of double-barrier methods and sexually transmitted diseases. The results of this study demonstrate the importance of including sex education as a core subject in the secondary education curriculum.
authors.affiliation: Escuela Universitaria de Trabajo Social de Jerez, Grupo Universitario de Investigación Social (GUIS), Jerez de la Frontera (Cádiz), España. pepecarrionjerez@gmail.com
authors.forename: José
authors.initials: J
authors.lastname: Rodríguez Carrión
authors.forename: Clara Isabel
authors.initials: CI
authors.lastname: Traverso Blanco
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D002648:Child; D002652:Child Behavior; D003268:Contraception Behavior / Q000706:statistics & numerical data; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006301:Health Services Needs and Demand; D006801:Humans; D020407:Internet; D008297:Male; D011247:Pregnancy; D012494:Sampling Studies; D012736:Sex Education; D012725:Sexual Behavior / Q000706:statistics & numerical data*; D012747:Sexual Partners; D012749:Sexually Transmitted Diseases / Q000453:epidemiology / Q000517:prevention & control; D013030:Spain; D011795:Surveys and Questionnaires