Reproducibility of a semi-quantitative food frequency questionnaire in Japanese female dietitians
| Autor: | Kiyonori Kuriki, Nahomi Imaeda, Shinkan Tokudome, Teruo Nagaya, Nakako Fujiwara, Shinzo Maki, Masato Ikeda, Chiho Goto, Yuko Tokudome, Juichi Sato |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Reproducibility
Analysis of Variance Epidemiology business.industry Intraclass correlation Dietetics Food frequency questionnaire Reproducibility of Results General Medicine Feeding Behavior Insoluble dietary fiber Diet Records Nutrient Animal science Japan Surveys and Questionnaires Calibration Medicine Humans Female business Energy Intake Semi quantitative |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0917-5040 |
| Popis: | Objective: To examine reproducibility of assessed intake of foods and nutrients according to a semi-quantitative food frequency questionnaire (SQFFQ) in Japanese female dietitians. Subjects and Methods: An SQFFQ was self-administered to 106 (21 male and 85 female) Japanese dietitians in Aichi prefecture in autumn 1996 and the same questionnaire was repeated in autumn 1997. Reproducibility was evaluated in terms of consumption of 15 foods and energy and 30 macro- and micro-nutrients based on the SQFFQ from 84 Japanese female dietitians. Results: For intake of foods, Pearson's correlation coefficients (CCs) with log-transformation and energy adjustment (minimum - median - maximum) ranged from 0.35 (beverages) - 0.61 - 0.71 (dairy products). ANOVA intraclass correlation coefficients (ICCs) with log-transformation and energy adjustment ranged from 0.49 (beverages) - 0.74 - 0.82 (dairy products). Spearman's rank CCs with energy adjustment ranged from 0.43 (confectionery) - 0.57 - 0.76 (dairy products). Weighted kappa statistics with energy adjustment ranged from 0.34 (confectionery) - 0.49 - 0.71 (dairy products). For consumption of nutrients, Pearson's CCs with log-transformation and energy adjustment ranged from 0.23 (zinc) - 0.55 - 0.74 (insoluble dietary fiber). ANOVA ICCs with log-transformation and energy adjustment ranged from 0.37 (zinc) - 0.70 - 0.84 (insoluble dietary fiber). Spearman's rank CCs with energy adjustment ranged from 0.25 (zinc) - 0.56 - 0.74 (magnesium). Weighted kappa statistics with energy adjustment ranged from 0.25 (zinc) - 0.50 -0.68 (insoluble dietary fiber). Conclusions: Substantially high reproducibility of consumption of foods and nutrients was attained from an SQFFQ self-administered to Japanese female dietitians. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|