title: [Characteristics of the tuberculin reaction in Cantabria].
abstract: For the purpose of establishing the maximum cutoff point defining a positive tuberculin reaction in Cantabria, a study was made of a total of 1,814 school-age children, 7 and 14 years of age, selected at random from the school-age children in that region. 2 U of PPD RT-23 were used. It was observed that 26.8% of these children had a scar from having been vaccinated with BCG. The graph of induration frequencies is bimodal for both age groups and for those vaccinated and those not having been vaccinated. In the 5-9 mm. range, 69 (71%) of those studied had a scar, and 25 (26%) did not (p less than 0.001). In our region, a different cutoff point must be used for the purpose of this test: 5 mm. for screening and 10 mm. for estimating the prevalence of infection.
authors: Unidad Docente de Medicina Familiar y Communitaria de Cazonña, Cantabria.
authors: P
authors: P
authors: Muñoz
authors: M
authors: M
authors: Calzada
authors: J A
authors: JA
authors: Castanedo
authors: L
authors: L
authors: Ruiz
authors: N
authors: N
authors: Sainz
authors: A
authors: A
authors: Salido
authors: J I
authors: JI
authors: Torres
authors: A
authors: A
authors: Villanueva
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D013030:Spain; D013223:Statistics as Topic; D014374:Tuberculin Test
vernacular_title: Carcterísticas de la reacción tuberculínica en Cantabria.