Relative validity of a food frequency questionnaire in patients coinfected with hepatitis C virus and human immunodeficiency virus
Rev. Soc. Bras. Med. Trop
; Rev. Soc. Bras. Med. Trop;50(1): 117-120, Jan.-Feb. 2017. tab
Article
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| LILACS
| ID: biblio-1041393
Biblioteca responsable:
BR1.1
ABSTRACT
ABSTRACT INTRODUCTION:
Validation of food frequency questionnaires (FFQs) is recommended for accurate measurement of habitual food consumption. We assessed the relative validity of a FFQ in patients coinfected with hepatitis C virus and human immunodeficiency virus.METHODS:
Each patient responded to a FFQ and three 24-hour food recalls. Pearson's correlation and weighted Kappa index analyses were performed to identify the FFQ relative validity and concordance.RESULTS:
De-attenuated correlation coefficients ranged from 0.35 (vitamin B1) to 0.81 (selenium). The concordance index ranged from 0.07 (vitamin C) to 0.51 (calcium).CONCLUSIONS:
The FFQ showed satisfactory relative validity for most nutrients.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Ingestión de Energía
/
Registros de Dieta
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Infecciones por VIH
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Encuestas sobre Dietas
/
Hepatitis C Crónica
/
Conducta Alimentaria
Tipo de estudio:
Prognostic_studies
Límite:
Female
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Humans
/
Male
Idioma:
En
Revista:
Rev. Soc. Bras. Med. Trop
Asunto de la revista:
MEDICINA TROPICAL
Año:
2017
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Brasil