Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity
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.
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Instituto de Medicina Tropical de São Paulo
2008
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oai:scielo:S0036-466520080002000112008-06-02Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificityPilger,DanielKhakban,AdakHeukelbach,JorgFeldmeier,Hermann Head lice Epidemiology Diagnosis Sensitivity Specificity Predictive values 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.info:eu-repo/semantics/openAccessInstituto de Medicina Tropical de São PauloRevista do Instituto de Medicina Tropical de São Paulo v.50 n.2 20082008-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652008000200011en10.1590/S0036-46652008000200011 |
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Pilger,Daniel Khakban,Adak Heukelbach,Jorg Feldmeier,Hermann |
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Pilger,Daniel Khakban,Adak Heukelbach,Jorg Feldmeier,Hermann Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| author_facet |
Pilger,Daniel Khakban,Adak Heukelbach,Jorg Feldmeier,Hermann |
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Pilger,Daniel |
| title |
Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| title_short |
Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| title_full |
Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| title_fullStr |
Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| title_full_unstemmed |
Self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| title_sort |
self-diagnosis of active head lice infestation by individuals from an impoverished community: high sensitivity and specificity |
| description |
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. |
| publisher |
Instituto de Medicina Tropical de São Paulo |
| publishDate |
2008 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652008000200011 |
| work_keys_str_mv |
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