FFQ for the adult population of the capital of Ecuador (FFQ-Quito): development, reliability and validity.

ABSTRACT:

Objective

To assess the reliability and validity of a semi-quantitative FFQ designed to evaluate the usual nutrient intake of adults in Quito, Ecuador.

Design

Dietary data using 24 h recalls (24hR) were used to design a list of commonly consumed foods. The relative validity of a 111-item FFQ was evaluated by comparing nutrient intakes against three non-consecutive 24hR. All nutrients were energy-adjusted. Reliability was assessed using two FFQ (FFQ1 and FFQ2) and assessed by the intra-class correlation coefficient. The comparisons between the FFQ and the 24hR were assessed by the de-attenuated Pearson correlation coefficient, weighted kappa and by Bland-Altman plots.

Setting

Quito, Ecuador.

Subjects

Overall, 345 adults were enrolled in the present study. Two hu

SUBMITTER: Silva-Jaramillo KM 

PROVIDER: S-EPMC10271580 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature