Table 3.

Countries with excessive iodine intake in 2020, ranked by increasing median UIC (µg/L). Adapted with permission from (7).^a.

Country or territory	Median UIC (µg/L)	Date of survey	Data type	Population surveyed
Cameroon	>300	2014–2018	Sub-national	SAC
Trinidad and Tobago	311	2018	National	SAC
Costa Rica	314	2008–09	National	SAC
Nepal	314	2016	National	SAC
Benin	318	2011	National	SAC
Solomon Islands	328	2007–10	Sub-national	SAC
Djibouti	335	2015	National	SAC
Qatar	341	2014	National	SAC
Honduras	356	2005	Sub-national	SAC
Colombia	407	2015–16	National	SAC
Korea, Republic of Korea	449	2013–15	National	SAC, Adolescents
Uganda	464	2005	National	SAC
Equatorial Guinea	564	2007	Sub-national	SAC

^aReferences for the country data available on the IGN Global Scorecard of iodine nutrition (7).

SAC, school-aged children; UIC, urinary iodine concentration.