title: Self-rated health as predictor of medicine use in adolescence.
abstract: OBJECTIVE
  To examine the association between self-rated health (SRH) and medicine use for four common complaints: headache, stomach-ache, difficulties in getting to sleep and nervousness, in a nationally representative sample of adolescents.
  
  
  METHODS
  The study population comprised of all students in the fifth, seventh and ninth grade (mean ages 11.6, 13.6 and 15.6 years) in a random sample of schools in Denmark 2002, participation rate 90.6%, n = 4.824. The students reported health problems, medicine use, social and psychosocial conditions in an anonymous and standardized questionnaire. The outcome measure was self-reported medicine use during the past month and the determinant was SRH measured by one item.
  
  
  RESULTS
  There was an association between poor/fair SRH and medicine use for headache and stomach-ache. The associations remained statistically significant even after adjustment for frequency of the complaint for which the medicine was used: OR (95%CI) for medicine use for headache was 1.54 (1.10-2.14) among boys with poor/fair SRH and 1.50 (1.12-2.03) among girls with poor/fair SRH. A similar association was found between poor SRH and medicine use for stomach-ache for both boys (OR = 3.41 (2.09-5.55)) and girls (OR = 1.90 (1.36-2.67). Further, there was an association between poor/fair SRH and medicine use for difficulties in getting to sleep among girls, OR = 2.66 (1.26-5.63) but not among boys. There was no association between SRH and medicine use for nervousness.
  
  
  CONCLUSIONS
  Poor/fair SRH is associated with medicine use for aches among Danish adolescents.
authors.affiliation: Institute of Public Health, University of Copenhagen, Copenhagen, Denmark. holstein@socmed.ku.dk
authors.forename: Bjørn E
authors.initials: BE
authors.lastname: Holstein
authors.forename: Ebba Holme
authors.initials: EH
authors.lastname: Hansen
authors.forename: Anette
authors.initials: A
authors.lastname: Andersen
authors.forename: Pernille
authors.initials: P
authors.lastname: Due
mesh_terms: D015746:Abdominal Pain / Q000188:drug therapy* / Q000523:psychology; D000293:Adolescent; D001007:Anxiety / Q000188:drug therapy* / Q000523:psychology; D002648:Child; D003718:Denmark; D005260:Female; D006261:Headache / Q000188:drug therapy* / Q000523:psychology; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D008297:Male; D012737:Sex Factors; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy* / Q000523:psychology; D011795:Surveys and Questionnaires