Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile

Background: Allergic rhinitis and sinusitis are common diseases that affect quality of life of pediatric and adult patients. Aim: To adapt and validate the Sino-Nasal Outcome Test 20 indicators (SNOT-20) survey in Chilean subjects. Material and Methods: In a psychometric validation study, an adapted...

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Autores principales:	Breinbauer,Hayo, Varela,Cecilia, Núñez,Mauricio, Ugarte,Soledad, Garfias,Raúl, Fonseca,Ximena
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2011
Materias:	Assessment, patient outcomes Rhinitis, allergic, perennial Sinusitis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872011000700009
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spelling	oai:scielo:S0034-988720110007000092011-09-16Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en ChileBreinbauer,HayoVarela,CeciliaNúñez,MauricioUgarte,SoledadGarfias,RaúlFonseca,Ximena Assessment, patient outcomes Rhinitis, allergic, perennial Sinusitis Background: Allergic rhinitis and sinusitis are common diseases that affect quality of life of pediatric and adult patients. Aim: To adapt and validate the Sino-Nasal Outcome Test 20 indicators (SNOT-20) survey in Chilean subjects. Material and Methods: In a psychometric validation study, an adapted version of the SNOT-20 adapted version was applied to 181 volunteers on two different occasions, three weeks apart. Feasibility (response time and perceived difficulty), reliability (internal consistency and test-retest) and validity (concurrent validity, correlating results with an independent instrument; predictive validity assessing its sensitivity to detect changes and discriminate validity, assessing receiver operating characteristic (ROC) curves), were assessed. An exploratory factor analysis was performed to confirm the presence of previously described underlying constructs. Results: Eighty percent of participants considered SNOT-20 easy to complete. This task was completed in less than 5 minutes. Cronbach's alpha was 0.946. Temporal stability on a healthy subgroup was strong with an intraclass correlation coefficient of0.92. SNOT-20 had a correlation coefficient of0.82 with an independent instrument and its score significantly decreased after 3 weeks of treatment (p = 0.003). The area under ROC curve was 0.895. Factor analysis identified four principal components which possessed identical structure as previously described. Conclusions: SNOT-20 survey was valid, reliable and easy to implement among Chilean subjects.info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.139 n.7 20112011-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872011000700009es10.4067/S0034-98872011000700009
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Assessment, patient outcomes Rhinitis, allergic, perennial Sinusitis
spellingShingle	Assessment, patient outcomes Rhinitis, allergic, perennial Sinusitis Breinbauer,Hayo Varela,Cecilia Núñez,Mauricio Ugarte,Soledad Garfias,Raúl Fonseca,Ximena Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile
description	Background: Allergic rhinitis and sinusitis are common diseases that affect quality of life of pediatric and adult patients. Aim: To adapt and validate the Sino-Nasal Outcome Test 20 indicators (SNOT-20) survey in Chilean subjects. Material and Methods: In a psychometric validation study, an adapted version of the SNOT-20 adapted version was applied to 181 volunteers on two different occasions, three weeks apart. Feasibility (response time and perceived difficulty), reliability (internal consistency and test-retest) and validity (concurrent validity, correlating results with an independent instrument; predictive validity assessing its sensitivity to detect changes and discriminate validity, assessing receiver operating characteristic (ROC) curves), were assessed. An exploratory factor analysis was performed to confirm the presence of previously described underlying constructs. Results: Eighty percent of participants considered SNOT-20 easy to complete. This task was completed in less than 5 minutes. Cronbach's alpha was 0.946. Temporal stability on a healthy subgroup was strong with an intraclass correlation coefficient of0.92. SNOT-20 had a correlation coefficient of0.82 with an independent instrument and its score significantly decreased after 3 weeks of treatment (p = 0.003). The area under ROC curve was 0.895. Factor analysis identified four principal components which possessed identical structure as previously described. Conclusions: SNOT-20 survey was valid, reliable and easy to implement among Chilean subjects.
author	Breinbauer,Hayo Varela,Cecilia Núñez,Mauricio Ugarte,Soledad Garfias,Raúl Fonseca,Ximena
author_facet	Breinbauer,Hayo Varela,Cecilia Núñez,Mauricio Ugarte,Soledad Garfias,Raúl Fonseca,Ximena
author_sort	Breinbauer,Hayo
title	Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile
title_short	Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile
title_full	Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile
title_fullStr	Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile
title_full_unstemmed	Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile
title_sort	encuesta de síntomas snot-20 para rinitis alérgica y rinosinusitis: validación en chile
publisher	Sociedad Médica de Santiago
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872011000700009
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Encuesta de síntomas SNOT-20 para rinitis alérgica y rinosinusitis: validación en Chile

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