FFQ-NutriForHer: Reproducibility and Validity of a Semi-Quantitative Food Frequency Questionnaire for Young and Older Women
Year: 2025
Type: article
Abstract: Background: Despite the growing interest in the relationship of diet and women’s health conditions, a limited number of Food Frequency Questionnaires (FFQs) have been specifically developed and/or validated for use among women, and those that exist have been primarily developed and validated in non-European countries. This study aimed to evaluate the reproducibility and validity of the FFQ-NutriForHer among young and older Polish women. Methods: The reproducibility and validity of the 138-item FFQ-NutriForHer were evaluated in 121 young (18–30 years) and 88 older women (70–90 years). Reproducibility was assessed using energy-adjusted Pearson and intraclass correlation coefficients (PCCs, ICCs) from two FFQ administrations. Validity was evaluated by comparing energy-adjusted and de-attenuated PCCs between FFQ-mean and 3-day dietary records. The Bland–Altman method estimated mean differences and limits of agreement. Results: The mean PCCs and ICCs for macronutrient reproducibility were 0.69 ± 0.12 and 0.69 ± 0.11 among young women and 0.67 ± 0.06 and 0.65 ± 0.11 among older women, respectively, indicating moderate correlation and reliability in both groups. For micronutrients, the mean PCCs were 0.72 ± 0.05 among young women and 0.69 ± 0.05 among older women, while ICCs were 0.71 ± 0.05 and 0.69 ± 0.09, respectively, indicating a good and moderate correlation and moderate reliability. Mean PCCs for macronutrient validity indicated good concordance with values of 0.51 ± 0.25 among young women and 0.46 ± 0.13 among older women. For micronutrients, the mean PCC for validity was 0.63 ± 0.13 among young women and 0.44 ± 0.14 among older women. Bland–Altman analysis indicated good overall agreement between methods in both groups. Conclusions: Given its high reproducibility and satisfactory validity in both age groups, the FFQ-NutriForHer is a reliable tool for assessing dietary intake and exploring its links to women’s health across different ages.
Source: Nutrients
DOI: 10.3390/nu17243811
Authors: Maria Karolina Szmidt, Ewa Sicinska, Olga Januszko, Joanna Kaluza
Institution: Warsaw University of Life Sciences
Language: English
Topic: Nutritional Studies and Diet
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $3,499
OpenAlex ID: W4417040496