CompletedNot Applicable

Comparison of I-FFQ and Two Reference Methods

Norway72 participantsStarted 2021-08-10

Plain-language summary

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.

Who can participate

Age range18 Years – 40 Years

SexFEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * healthy women aged 18-40 years * sufficient language skills to be able to complete the questionnaires in Norwegian * be able to meet physically at the study center in Bergen Exclusion Criteria: * being pregnant, lactating, or having known thyroid disease

What they're measuring

Comparison of FFQ with 24-hour recall

Timeframe: One week

Comparison of FFQ with urinary iodine concentration

Timeframe: One week

Trial details

NCT IDNCT05934006

SponsorUniversity of Bergen

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2022-01-01

View on ClinicalTrials.gov More Iodine Deficiency trials