Table 4.
Urinary iodine concentration (UIC) among Norwegian toddlers 18 months of age with low/medium consumption frequency and high consumption frequency of iodine-rich foods (n = 340)
| UIC (μg/L) |
||||
|---|---|---|---|---|
| Low/medium consumption |
High consumptiona |
|||
| Median (p25–p75) | n | Median (p25–p75) | n | |
| Fish | 134 (83–200) | 271 | 117 (56–200) | 69 |
| Yoghurt | 123 (79–200) | 171 | 132 (75–200) | 169 |
| Fish and yoghurt | 131 (81–200) | 298 | 117 (55–198) | 42 |
| Porridge, industry-manufactured | 129 (81–193) | 258 | 123 (55–208) | 82 |
| Porridge, homemade | 129 (76–205) | 294 | 119 (73–185) | 46 |
Values given as median (p25–p75).
a
Fish: Lean fish or fish products for dinner at least 2–3 times/week, and lean fish or fatty fish as bread topping at least 4–6 times/week. Yoghurt: at least 4–6 times/week. Fish and yoghurt: both intake of fish and yoghurt was high. Porridge (homemade or industry-manufactured): at least 4–6 times/week. Differences in UIC between consumption frequencies were tested by Mann–Whitney U test for each of the food groups. None were statistically significant.