With all due respect, please be aware that a great many of us have used Iodine supplementation(far above the RDA) to clear up chronic health issues, with or without testing of any sort.
And I think that it is well documented that Iodine deficiency is a real, and current problem.
Soooo... talk about your more "accurate" test if you wish but please do NOT put "deficient" in quotes. If you want to debate deficiency, take it to the debate forum.