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Catalyst

iodideFinding

Iodide decreases serum free thyroxine (FT4)

lowersModerate evidenceFinding

01 · The sentence it was drawn from

“During pregnancy, maternal free and total thyroxine concentrations were lower in the iodine group as compared to placebo (p = 0.0003, and p = 0.02, respectively).”
Quoted verbatim from Iodine Supplementation in Mildly Iodine-Deficient Pregnant Women Does Not Improve Maternal Thyroid Function or Child Development: A Secondary Analysis of a Randomized Controlled Trial.
This finding among the 2 findings on its endpoint

iodide

Serum free thyroxine (FT4)

lowers

Who
Mildly iodine-deficient pregnant women in Bangkok, Thailand (median urinary iodine 112 µg/L at entry, gestational age 14 weeks or less), measured in the 2nd and 3rd trimesters; about 88% of households in both arms used iodised salt
Dose studied
200 μg iodine daily as potassium iodide tablets until delivery

Moderate evidencePMID 33123091 · 2020

02 · The study

Study
RCT
Duration
not reported

Evidence, by strength

  • strong
  • moderatethis finding
  • limited
  • very limited
  • insufficient

03 · The paper

Frontiers in endocrinology
What else it reported1 finding · 1 compound · 1 endpoint

04 · To cite this finding

This address does not change

https://catalystproject.ai/e/01M71PKABYJMQCYTEART7CJAPH