Table 1.

Percentage of population (school-age children, 6–12 years and general population, all age groups) with insufficient iodine intake (UI < 100 μg/L) by WHO region: surveys carried out in 2003^*.

WHO region	School-age children insufficient iodine intake (%)	General population insufficient iodine intake (%)
Africa	42.3	42.6
Americas	10.1	9.8
South-East Asia	39.9	39.8
Europe	59.9	56.9
Eastern Mediterranean	55.4	54.1
Western Pacific	26.2	24.0
Total	36.5	35.2

^*Modified from WHO (9).