title: Can school teachers improve the management and prevention of skin disease? A pilot study based on head louse infestations in Guerrero, Mexico.
abstract: BACKGROUND
  The effect of health education provided by teachers, in three primary schools of Guerrero, Mexico, on the prevalence of head louse infestation was compared.
  
  
  METHODS
  A cross-sectional survey and rapid appraisal methods were performed, including a child questionnaire and qualitative data from teachers and focus groups of mothers in the same schools.
  
  
  RESULTS
  Nine hundred and forty-four students and 33 teachers were interviewed; a focus group discussion with 6-8 mothers per school was performed. In the self-diagnosis of pediculosis, the prevalence was 22% (range, 18%-33%) with a sensitivity of 68% and a specificity of 86%. In one school, 100% of the teachers applied a health program, whereas in the other two schools this percentage was only 20%. A child under 9 years of age who attended a school without information on health was 3.6 times more likely to have head louse infestation (OR = 3.6, CI 95% = 2.1-6) than a child of the same age who attended a school where information was given. In older children the effect and potential impact were lower. The difference between the two age groups is unlikely to be explained by chance (X2 het = 5.7, df = 1, p = 0.01).
  
  
  CONCLUSIONS
  This study emphasizes the potential value of simple, but effective, health education provided by school teaching staff through liaison with patents in the amelioration of endemic disease.
authors.affiliation: Centro de Investigacion de Enfermedades Tropicales, Universidad Autonoma de Guerrero, Acapulco, Mexico.
authors.forename: S S
authors.initials: SS
authors.lastname: Paredes
authors.forename: R
authors.initials: R
authors.lastname: Estrada
authors.forename: H
authors.initials: H
authors.lastname: Alarcon
authors.forename: G
authors.initials: G
authors.lastname: Chavez
authors.forename: M
authors.initials: M
authors.lastname: Romero
authors.forename: R
authors.initials: R
authors.lastname: Hay
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003634:DDT / Q000627:therapeutic use; D003627:Data Interpretation, Statistical; D005260:Female; D006266:Health Education; D006801:Humans; D007306:Insecticides / Q000627:therapeutic use; D010373:Lice Infestations / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D008297:Male; D008800:Mexico / Q000453:epidemiology; D009035:Mothers; D010865:Pilot Projects; D015995:Prevalence; D012536:Scalp Dermatoses / Q000469:parasitology / Q000517:prevention & control / Q000628:therapy; D012572:School Health Services; D012871:Skin Diseases / Q000453:epidemiology / Q000469:parasitology* / Q000517:prevention & control*; D013663:Teaching
chemical_list: D007306:Insecticides; D003634:DDT