Table 1 Compilation of Japanese diet studies measuring iodine in 24-hour diet samples and single meals
Author(s) [source] | Year | Number of Participants | Mean Iodine in 24-Hour Diet Sample ( μg) | Lowest Iodine in 24-Hour Diet Sample ( μg) | Highest Iodine in 24-Hour Diet Sample ( μg) | City/Region |
|---|---|---|---|---|---|---|
Katamine et al. [23] | 1986 | 1 | 1023 μg | 45 μg | 1921 μg | Tokyo |
Katamine et al. [23] | 1986 | 1 | 362 μg | 57 μg | 1244 μg | Tokyo |
Katamine et al. [23] | 1986 | 1 | 361 μg | 62 μg | 1098 μg | Tokyo |
Katamine et al. [23] | 1986 | 1 | 429 μg | 52 μg | 1561 μg | Tokyo |
Katamine et al. [23] | 1986 | 10 (hospital) | 1290 μg | 89 μg | 4746 μg |  |
Katamine et al. [23] | 1986 | 5 (hospital) | 195 μg | 95 μg | 287 μg |  |
Katamine et al. [23] | 1986 | 13 (school) | 113 μg/meal | 47 μg/meal | 203 μg/meal | Ibaraki |
Katamine et al. [23] | 1986 | 5 (school) | 27 μg/meal | 25 μg/meal | 31 μg/meal | Kanagawa |
Katamine et al. [23] | 1986 | 5 (school) | 36 μg/meal | 18 μg/meal | 43 μg/meal | Kanagawa |
Tajiri et al. [48] | 1986 | 1 | 25400 μg est. |  |  | Kumamoto |
Tajiri et al. [48] | 1986 | 1 | 43000 μg est. |  |  | Kumamoto |
Tajiri et al. [48] | 1986 | 1 | 15000 μg est. |  |  | Kumamoto |
Tajiri et al. [48] | 1986 | 1 | 20000 μg est. |  |  | Kumamoto |
Tajiri et al. [48] | 1986 | 10 | 2800 μg est. |  |  | Kumamoto |
Tajiri et al. [48] | 1986 | 8 | 2300 μg est. |  |  | Kumamoto |
Shiraishi et al. [61] | 1999 | 6 | 1770 μg | 545 μg | 4490 μg | Mito |
Kunachowicz et al. [62] | 2000 | 5 | 1970 μg/kg mean, 550 μg/kg median | 88 μg/kg | 7650 μg/kg |  |
Yoshinaga et al. [25] | 2001 | 29 (476 meals) | 1900 μg/kg |  |  | All Japan |
Kucera et al. [63] | 2003 |  | 756 μg/kg median | 124 μg/kg | 21660 μg/kg |  |
Nishiyama et al. [16] | 2004 | 5 (pregnant) |  | 2280 μg | 3180 μg | Kumamoto |
Nishiyama et al. [16] | 2004 | 10 (pregnant) |  | 820 μg | 1400 μg | Kumamoto |
Nishiyama et al. [16] | 2004 | 22 (pregnant w/no kelp) |  | 250 μg | 480 μg | Kumamoto |