Reproducibility and validity of an extensive semiquantitative food frequency questionnaire among Greek school teachers

Epidemiology. 1995 Jan;6(1):74-7. doi: 10.1097/00001648-199501000-00015.


We evaluated the reproducibility and validity of a 190-item semiquantitative food frequency questionnaire (FFQ) to be used in a large prospective study in the Athens area of Greece. Eighty persons, 42 men and 38 women, ages 25-67 years, completed a self-administered FFQ, followed by monthly 24-hour diet recalls and then a second FFQ 1 year after the first. Correlation coefficients measuring the reproducibility and validity of the FFQ indicate that the questionnaire is reproducible and provides a reasonably reliable measure of intake for many nutrients over a period of 1 year.

MeSH terms

  • Adult
  • Aged
  • Diet Surveys*
  • Eating*
  • Female
  • Greece
  • Humans
  • Male
  • Mental Recall
  • Middle Aged
  • Pilot Projects
  • Reproducibility of Results
  • Surveys and Questionnaires
  • Teaching