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  • 标题:Assessing the Validity and Reproducibility of an Iron Dietary Intake Questionnaire Conducted in a Group of Young Polish Women
  • 本地全文:下载
  • 作者:Dominika Głąbska ; Dominika Guzek ; Joanna Ślązak
  • 期刊名称:Nutrients
  • 电子版ISSN:2072-6643
  • 出版年度:2017
  • 卷号:9
  • 期号:3
  • 页码:199
  • DOI:10.3390/nu9030199
  • 语种:English
  • 出版社:MDPI Publishing
  • 摘要:The aim of the study was to analyse a designed brief iron dietary intake questionnaire based on a food frequency assessment (IRONIC-FFQ—IRON Intake Calculation-Food Frequency Questionnaire), including the assessment of validity and reproducibility in a group of 75 Polish women aged 20–30 years. Participants conducted 3-day dietary records and filled in the IRONIC-FFQ twice (FFQ1—directly after the dietary record and FFQ2—6 weeks later). The analysis included an assessment of validity (comparison with the results of the 3-day dietary record) and of reproducibility (comparison of the results obtained twice—FFQ1 and FFQ2). In the analysis of validity, the share of individuals correctly classified into tertiles was over 50% (weighted κ of 0.36), while analysis of correlation revealed correlation coefficients of almost 0.5. In the assessment of reproducibility, almost 80% of individuals were correctly classified and less than 3% were misclassified (weighted κ of 0.73), while a correlation coefficient higher than 0.85 was obtained. Both in the assessment of validity and of reproducibility, a Bland–Altman index of 6.7% was recorded (93.3% of compared pairs of results were in the acceptable range, attributed to differences within ± 2SD limit). Validation of the IRONIC-FFQ revealed a satisfactory level of validity and positively validated reproducibility.
  • 关键词:iron; food frequency questionnaire; validation study; validity; reproducibility; young women iron ; food frequency questionnaire ; validation study ; validity ; reproducibility ; young women
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