Mild-to-moderate iodine deficiency remains a problem in many parts of the world, including Norway. Of particular concern are fertile, pregnant, and lactating women. The Norwegian Dairy Council developed a digital iodine-specific food frequency questionnaire (I-FFQ) for the assessment of iodine intake levels, but it has yet to be validated. The main objective was thus to investigate the relative validity of the I-FFQ by comparing estimates of iodine intake obtained from the I-FFQ against a single 24-hour recall (24HR) and urinary iodine concentration (UIC) in fertile women.
Study Type
OBSERVATIONAL
Enrollment
72
No intervention, but measurement of urinary iodine concentration by 6 repeated spot urine samples
University of Bergen
Bergen, Norway
Comparison of FFQ with 24-hour recall
Comparison of estimated dietary iodine intake from food-frequency questionnaire (FFQ) with dietary iodine intake from 24-hour recall
Time frame: One week
Comparison of FFQ with urinary iodine concentration
Comparison of estimated iodine intake from food-frequency questionnaire (FFQ) with urinary iodine concentration (UIC)
Time frame: One week
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.