Reproducibility and validity of a quantitative FFQ designed for patients with type 2 diabetes mellitus from southern Brazil.
Public Health Nutr
; 17(10): 2237-45, 2014 Oct.
Article
em En
| MEDLINE
| ID: mdl-24107661
ABSTRACT
OBJECTIVE:
To evaluate the reproducibility and validity of a previously constructed FFQ to assess the usual diet of patients with type 2 diabetes mellitus (T2DM).DESIGN:
Cross-sectional survey using two quantitative FFQ (1-month interval) supported by a food photograph portfolio, a 3 d weighed diet record (WDR) and urinary N output measurement (as a biomarker of protein intake).SETTING:
Group of Nutrition in Endocrinology, southern Brazil.SUBJECTS:
Out-patients with T2DM.RESULTS:
From a total of 104 eligible T2DM patients, eighty-eight were included in the evaluation of FFQ reproducibility and seventy-two provided data for the validity study. The intakes estimated from the two FFQ did not differ (P > 0·05) and the correlation coefficients were significant (P < 0·01) for energy and nutrients, ranging from 0·451 (soluble fibre) to 0·936 (PUFA). Regarding the validity evaluation, data from the FFQ were higher than those from the WDR for total (28·3%), soluble (27·4%) and insoluble fibres (29·1%), and SFA (13·5%), MUFA (11·1 %) and total lipids (9·2%; all P < 0·05). There were significant correlation coefficients between the FFQ and WDR for most nutrients, when adjusted for energy intake and de-attenuated. Also, the Bland-Altman plots between the FFQ and WDR for energy and macronutrient intakes showed that the FFQ may be used as alternative method to the WDR. The validity coefficient (using the method of triads) for the FFQ protein intake was 0·522 (95% CI 0·414, 0·597).CONCLUSIONS:
This quantitative FFQ was valid and precise to assess the usual diet of patients with T2DM, according to its validity and reproducibility.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ingestão de Energia
/
Proteínas Alimentares
/
Avaliação Nutricional
/
Cooperação do Paciente
/
Política Nutricional
/
Diabetes Mellitus Tipo 2
/
Dieta
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Public Health Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
/
SAUDE PUBLICA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Brasil