Relative Validity and Reproducibility of a Quantitative Food Frequency Questionnaire for Adolescents with Type 1 Diabetes: Validity of a Food Frequency Questionnaire

المؤلفون المشاركون

Marques, Rosana de Moraes Borges
Oliveira, Amanda Cristine de
Teles, Sheylle Almeida da Silva
Stringuini, Maria Luiza Ferreira
Fornés, Nélida Shimid
Gardenghi, Giulliano

المصدر

International Journal of Endocrinology

العدد

المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2014-08-27

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

الأحياء

الملخص EN

Background.

Food frequency questionnaires are used to assess dietary intake in epidemiological studies.

Objective.

The aim of the study was to assess the relative validity and reproducibility of a quantitative food frequency questionnaire (QFFQ) for adolescents with type 1 diabetes.

Methods: Validity was evaluated by comparing the data generated by QFFQs to those of 24-hour recalls (24 hrs).

QFFQs were applied twice per patient to assess reproducibility.

Statistical analysis included performing t-tests, obtaining Pearson correlation coefficients when necessary, correcting measurements for randomness by the weighted kappa method, calculating intraclass correlation coefficients, and generating Bland-Altman plots ( P < 0,05 ).

Results.

The total energy and nutrient intake as estimated by the QFFQs were significantly higher than those from 24 hrs.

Pearson correlation coefficients for energy-adjusted, deattenuated data ranged from 0.32 (protein) to 0.75 (lipid, unsaturated fat and calcium).

Weighted kappa values ranged from 0.15 (vitamin C) to 0.45 (calcium).

Bland-Altman plots indicated acceptable validity.

As for reproducibility, intraclass correlation coefficients ranged from 0.24 (calcium) to 0.65 (lipid), and the Bland-Altman plots showed good agreement between the two questionnaires.

Conclusion: The QFFQ presented an acceptable ability to classify correctly and with good reproducibility, adolescents with type 1 diabetes according to their levels of dietary intake.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Marques, Rosana de Moraes Borges& Oliveira, Amanda Cristine de& Teles, Sheylle Almeida da Silva& Stringuini, Maria Luiza Ferreira& Fornés, Nélida Shimid& Gardenghi, Giulliano. 2014. Relative Validity and Reproducibility of a Quantitative Food Frequency Questionnaire for Adolescents with Type 1 Diabetes: Validity of a Food Frequency Questionnaire. International Journal of Endocrinology،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1036635

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Marques, Rosana de Moraes Borges…[et al.]. Relative Validity and Reproducibility of a Quantitative Food Frequency Questionnaire for Adolescents with Type 1 Diabetes: Validity of a Food Frequency Questionnaire. International Journal of Endocrinology No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1036635

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Marques, Rosana de Moraes Borges& Oliveira, Amanda Cristine de& Teles, Sheylle Almeida da Silva& Stringuini, Maria Luiza Ferreira& Fornés, Nélida Shimid& Gardenghi, Giulliano. Relative Validity and Reproducibility of a Quantitative Food Frequency Questionnaire for Adolescents with Type 1 Diabetes: Validity of a Food Frequency Questionnaire. International Journal of Endocrinology. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1036635

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1036635