Table 1.
Median urine iodine concentration (mUIC), goitre prevalence, and household salt iodine consumption in schoolchildren aged 6–12 years in 2000–2016. TGR, total goitre prevalence rate; HHIS, household salt iodine; IQR, interquartile range.
| Surveys | UIC (µg/L) | TGR 3 | HHIS (%) 4 | ||||
|---|---|---|---|---|---|---|---|
| % < 50 1 | Median (IQR) 2 | % | <5 | 5–14.9 | 15–30 | >30 | |
| NIS–2016 (n = 5000) |
1.6 | 232.5 (159.3–315.8) | 1.9 | 3.1 | 18.4 | 63.5 | 15.0 |
| NIS–2010 (n = 7401) |
6.7 | 163.4 (99.1–245.1) | 4.4 | 4.6 | 27.1 | 52.5 | 16.1 |
| NIS–2005 (n = 1879) |
7.4 | 154.4 (90.3–252.6) | 3.8 | 0.0 | 8.7 | 47.7 | 43.5 |
| NIS–2000 (n = 2628) |
2.7 | 145.3 (84.6–315.8) | 18.0 | – | – | – | – |
Note: 1–4 p = 0.000. (- No data)