Martina Barchitta, Andrea Maugeri, Ottavia Agrifoglio, Giuliana Favara, Claudia La Mastra, Maria Clara La Rosa, Roberta Magnano San Lio, Antonella Agodi
Innovative tools for assessing food and nutrient intakes in adolescence are essential to uncover the long-term effects of diet on chronic diseases. Here, we developed and compared a web-based self-administered food frequency questionnaire (web-FFQ) with a traditional interviewer printed FFQ (print-FFQ) among 174 Italian adolescents (aged 15-18 years). To assess the reliability of the web-FFQ compared with the print-FFQ, we used Spearman's rank correlation coefficients, Wilcoxon rank test, quartile misclassification analysis, Cohen's weighted kappa and the Bland-Altman method...
June 1, 2019: International Journal of Environmental Research and Public Health