title: [Trends and determinants factors of Chlamydia trachomatis genital infection in young people under 25 years. Catalonia 2007-2014].
abstract: BACKGROUND
  Chlamydia trachomatis (chlamydia) infection is the most common bacterial sexually transmitted diseases (STD). However, the prevalence among young people is unknown in our country. In 2007, the monitoring of the prevalence and behaviours related to acquiring it began in Catalonia in young people ≤25years.
  
  
  OBJECTIVE
  To determine and monitor the prevalence and determining factors of chlamydia among a young sexually active population ≤25years, treated in sexual and reproductive health care centras (CT/NG-ASSIR) and in prisons (CT/NG-Prisons).
  
  
  METHODS
  An analysis was performed on 6 cross-sectional data studies in two sentinel populations of young people from the period 2007-2014. Behavioural indicators were recorded and urine specimens were collected for analysis by PCR. The prevalence and trends are described, and the variables associated with infection were evaluated using multivariate logistic regression analysis.
  
  
  RESULTS
  The mean prevalence for CT/NG-ASSIR was 7.4%, with an upward trend (P=.174), and an increase of 46.5%. CT/NG-Prisons had a mean 8.0%, with an upward trend (P=.282), and an increase of 31.6%. Age and foreign origin are presented as risk factors in both populations. The concurrent sexual partners added to CT/NG-ASSIR and the time spent in prison to CT/NG-Prisons.
  
  
  CONCLUSIONS
  The results underscore the need for a more efficient approach to control activities related to chlamydia infection in Catalonia. Policies need to be strengthened to promote safer sexual behaviours and active case finding by opportunistic screening in less than 25year-old.
authors.affiliation: Centro de Estudios Epidemiológicos sobre las Infecciones de Transmisión Sexual y Sida de Cataluña (CEEISCAT), Agencia de Salud Pública de Cataluña (ASPC), Generalitat de Catalunya, Badalona, Barcelona, España; CIBER Epidemiología y Salud Pública (CIBERESP), España; Departmento de Medicina Preventiva y Salud Pública, Universitat Autònoma de Barcelona, Fundación Instituto de Investigación Germans Trias i Pujol (IGTP), Badalona, Barcelona, España; Programa de Doctorado en Salud Pública y Metodología de la Investigación Biomédica, Departamento de Pediatría, Obstetricia y Ginecología y de Medicina Preventiva y Salud Pública, Universidad Autónoma Barcelona, Bellaterra-Cerdanyola, Barcelona, España. Electronic address: evelin.lopez@gmail.com.
authors.forename: Evelin
authors.initials: E
authors.lastname: López-Corbeto
authors.affiliation: Centro de Estudios Epidemiológicos sobre las Infecciones de Transmisión Sexual y Sida de Cataluña (CEEISCAT), Agencia de Salud Pública de Cataluña (ASPC), Generalitat de Catalunya, Badalona, Barcelona, España; CIBER Epidemiología y Salud Pública (CIBERESP), España; Departmento de Medicina Preventiva y Salud Pública, Universitat Autònoma de Barcelona, Fundación Instituto de Investigación Germans Trias i Pujol (IGTP), Badalona, Barcelona, España; Servicio de Microbiología, Fundación Instituto de Investigación en Ciencias de la Salud Germans Trias i Pujol, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Barcelona, España.
authors.forename: Victoria
authors.initials: V
authors.lastname: González
authors.affiliation: CIBER Epidemiología y Salud Pública (CIBERESP), España; Departmento de Medicina Preventiva y Salud Pública, Universitat Autònoma de Barcelona, Fundación Instituto de Investigación Germans Trias i Pujol (IGTP), Badalona, Barcelona, España; Servicio de Microbiología, Fundación Instituto de Investigación en Ciencias de la Salud Germans Trias i Pujol, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Barcelona, España.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Bascunyana
authors.affiliation: Dirección General de Servicios Penitenciarios de Cataluña, Departament de Justícia, Generalitat de Catalunya, Barcelona, España.
authors.forename: Victoria
authors.initials: V
authors.lastname: Humet
authors.affiliation: Centro de Estudios Epidemiológicos sobre las Infecciones de Transmisión Sexual y Sida de Cataluña (CEEISCAT), Agencia de Salud Pública de Cataluña (ASPC), Generalitat de Catalunya, Badalona, Barcelona, España; CIBER Epidemiología y Salud Pública (CIBERESP), España; Departmento de Medicina Preventiva y Salud Pública, Universitat Autònoma de Barcelona, Fundación Instituto de Investigación Germans Trias i Pujol (IGTP), Badalona, Barcelona, España; Departamento de Pediatría, Obstetricia y Ginecología y de Medicina Preventiva y de Salud Pública, Universidad Autónoma de Barcelona, Bellaterra-Cerdanyola, Barcelona, España.
authors.forename: Jordi
authors.initials: J
authors.lastname: Casabona
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D002690:Chlamydia Infections / Q000453:epidemiology*; D002692:Chlamydia trachomatis; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D012307:Risk Factors; D017678:Sex Distribution; D012725:Sexual Behavior; D013030:Spain / Q000453:epidemiology; D055815:Young Adult
keywords: Chlamydia trachomatis; Factores de riesgo; Jóvenes; Prevalence; Prevalencia; Risk factors; Tendencia; Trend; Youth