title: Predictive value of a 24 hour tuberculin skin test evaluation.
abstract: The predictive value of induration 24 hours after administration of purified protein derivative (PPD) was examined. Altogether 1082 healthy schoolchildren were tested using 5 tuberculin units of PPD. Induration was measured at 24, 48, and 72 hours. At 24 hours, induration of any size had a relatively low positive predictive value (63%), although indurations > 5 mm had a higher (86%) positive predictive value.
authors.affiliation: Ondokuz Mayis University School of Medicine, Department of Paediatrics, Samsun, Turkey.
authors.forename: F
authors.initials: F
authors.lastname: Oztürk
authors.forename: M
authors.initials: M
authors.lastname: Eskiocak
authors.forename: A
authors.initials: A
authors.lastname: Bay
authors.forename: R
authors.initials: R
authors.lastname: Sancak
authors.forename: S
authors.initials: S
authors.lastname: Dabak
authors.forename: N
authors.initials: N
authors.lastname: Gürses
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D002648:Child; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000473:pathology; D011237:Predictive Value of Tests; D013997:Time Factors; D014374:Tuberculin Test; D014376:Tuberculosis / Q000175:diagnosis*