Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity
Autor: | Adak Khakban, Jorg Heukelbach, Hermann Feldmeier, Daniel Pilger |
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Rok vydání: | 2008 |
Předmět: |
Adult
Male medicine.medical_specialty Adolescent education Pediculosis Sensitivity and Specificity Ivermectin Poverty Areas parasitic diseases Epidemiology medicine Animals Humans Child Aged Antiparasitic Agents business.industry Pediculus Infant General Medicine Gold standard (test) Lice Infestations Middle Aged medicine.disease Antiparasitic agent humanities Surgery Visual inspection Infectious Diseases Self-Examination Scalp Dermatoses Child Preschool Female business Head lice infestation medicine.drug Demography |
Zdroj: | Revista do Instituto de Medicina Tropical de São Paulo. 50:121-122 |
ISSN: | 0036-4665 |
Popis: | To compare sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of self-diagnosis for head lice infestation with visual inspection, we conducted a study in an urban slum in Brazil. Individuals were asked about active head lice infestation (self-diagnosis); we performed visual inspection and thereafter wet combing (gold standard). Of the 175 individuals included, 77 (44%) had an active head lice infestation. For self-diagnosis, sensitivity (80.5%), specificity (91.8%), PPV (88.6%) and NPV (85.7%) were high. Sensitivity of visual inspection was 35.1%. Public health professionals can use self-diagnosis as a diagnostic tool, to estimate accurately prevalence of pediculosis in a community, and to monitor ongoing intervention strategies. |
Databáze: | OpenAIRE |
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