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| Afghanistan | 2004 | not specified | 28 | | | | | | | | Summary Report of the National Nutrition Survey 2004, p. 2. |
| Albania | 2008-2009 | 15+ | 76 | 87 | 65 | 52 | 65 | 80 | 87 | 89 | DHS 2008-2009, Final report, Table 11.7, p. 164 |
| Algeria | 2006 | 15+ | 61 | 68 | 51 | 40 | 53 | 61 | 67 | 81 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Andorra | | | - | | | | | | | | |
| Angola | 2007 | 15+ | 45 | | | | | | | | Angola Nutrition Survey 2007, Table 8, p. 24 |
| Antigua and Barbuda | | | - | | | | | | | | |
| Argentina | 1996 | not specified | 90 | | | | | | | | Fax Reference: BUE/NY/035/96 UNICEF Country Office, 27 February 1996. |
| Armenia | 2005 | 15+ | 97 | 97 | 98 | 97 | 97 | 96 | 98 | 98 | DHS 2005, Final Report, Table 12.10, p. 156 |
| Australia | | | - | | | | | | | | |
| Austria | | | - | | | | | | | | |
| Azerbaijan | 2006 | 15+ | 54 | 62 | 42 | 35 | 46 | 51 | 56 | 76 | DHS 2006, Final report, Table 12.9, p. 151 |
| Bahamas | | | - | | | | | | | | |
| Bahrain | | | - | | | | | | | | |
| Bangladesh | 2006 | 10+ | 84 | 92 | 81 | 75 | 79 | 84 | 89 | 96 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Barbados | | | - | | | | | | | | |
| Belarus | 2003-2004 | not specified | 55 | | | | | | | | Sociological Study with Salt Testing 2003-04, Belarus State University Center for Sociological and Political Studies. |
| Belgium | | | - | | | | | | | | |
| Belize | 1994 | not specified | 90 | | | | | | | | Ministry of Health, 1994. |
| Benin | 2008 | 15+ | 67 | 62 | 71 | 71 | 70 | 74 | 66 | 55 | Analyse Globale de la Vulnérabilité, de la Sécurité Alimentaire et de la Nutrition (AGVSAN) 2008, Annex 7, Table 52, p. 141 |
| Bhutan | 2002 | not specified | 96 | | | | | | | | UNICEF, Anemia Among Men, Women and Children in Bhutan 2002, p. 28. |
| Bolivia | 2008 | not specified | 89 | 89 | 88 | 85 | 90 | 92 | 90 | 87 | DHS 2008, Final report, Table 11.12, p. 225 |
| Bosnia and Herzegovina | 2005 | 20+ | 62 | | | | | | | | UNICEF and MOH, Iodine Status of the Population of Bosnia-Herzegovina 2006, Table 13, p. 46. |
| Botswana | 2000 | 15+ | 66 | | | | | | | | MICS 2000, Table 15. |
| Brazil | 2006 | not specified | 96 | | | | | | | | MOH, PNDS 2006, Table 5, p. 280 |
| Brunei Darussalam | | | - | | | | | | | | |
| Bulgaria | 2006 | 15+ | 100 | | | | | | | | MOH (Ref. 48-06-5) 2006. |
| Burkina Faso | 2006 | 15+ | 34 | 52 | 27 | 21 | 25 | 28 | 38 | 55 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Burundi | 2005 | not specified | 98 | | | | | | | | Rapport de l'Enquête Nationale de Nutrition de la Population, 2006. Table 24, p. 36. |
| Cambodia | 2005 | not specified | 73 | 85 | 71 | 65 | 66 | 71 | 76 | 87 | DHS 2005, Final Report, Table 15.9, p. 183. |
| Cameroon | 2006 | 25+ | 49 | 54 | 44 | 50 | 38 | 45 | 51 | 59 | MICS 2006, Final report, Table NU.5, p. 134 |
| Canada | | | - | | | | | | | | |
| Cape Verde | 1996 | 15+ | 0 | | | | | | | | MOH and UNICEF, Enquete National sur la Carence en Lode et la Consommation du Sel au Cap Vert 1996. |
| Central African Republic | 2006 | 15+ | 62 | 68 | 59 | 54 | 58 | 61 | 72 | 76 | MICS 2006, Re-analyzed by UNICEF HQ, May 2007. |
| Chad | 2004 | 15+ | 56 | 60 | 55 | | | | | | DHS 2004, Final Report, Table 2.7, p. 28. |
| Chile | 1999 | 20+ | 100 | | | | | | | | MOH, 1999 |
| China | 2009 | 20-50 | 96 | | | | | | | | MOH, National IDD Surveillance Report 2009, p. 17 |
| Colombia | 1997 | not specified | 92 | | | | | | | | MOH, UNICEF, OPS and OMS, Control de los Desordenes por Deficiencia de Yodo en Colombia 1998, p.14. |
| Comoros | 2000 | 15+ | 82 | | | | | | | | MICS 2000, Re-analyzed by UNICEF HQ, December 2002. |
| Congo | 2005 | 15+ | 82 | 82 | 82 | 80 | 82 | 84 | 81 | 83 | DHS 2005, Final Report, Table 11.5, p. 164. |
| Congo, Democratic Republic of the | 2007 | 15+ | 79 | 83 | 76 | 77 | 83 | 78 | 72 | 84 | DHS 2007, Final report, Table 11.10, p. 176 |
| Cook Islands | | | - | | | | | | | | |
| Costa Rica | 1996 | not specified | 92 | | | | | | | | National Nutrition Survey 1996. |
| Cote d'Ivoire | 2004 | not specified | 84 | | | | | | | | MOH and UNICEF, Evaluation de la Lutte Contre les Troubles dus à la Carence en Iodé en Cote d'Ivoire 2004, Final Report, p. 26. |
| Croatia | 1999 | not specified | 90 | | | | | | | | Analysis Report of the Croatian National Institute of Public Health and UNICEF Croatia, 2000. |
| Cuba | 2005 | 15+ | 88 | | | | | | | | ONE, National Survey of Nutrition and Food Hygiene 2005. |
| Cyprus | | | - | | | | | | | | |
| Czech Republic | | | - | | | | | | | | |
| Denmark | | | - | | | | | | | | |
| Djibouti | 2006 | 15+ | 0 | 0 | 0 | | | | | | MICS 2006, Final report, Table C.III.4, p. 57 |
| Dominica | | | - | | | | | | | | |
| Dominican Republic | 2006 | 15+ | 19 | 22 | 12 | 6 | 14 | 20 | 25 | 29 | ONE, ENHOGAR 2006. |
| Ecuador | 1999 | not specified | 99 | | | | | | | | Ministry of Public Health, National Program of Bocio-MSP, 1999. |
| Egypt | 2008 | 15+ | 79 | 86 | 72 | 57 | 71 | 79 | 88 | 91 | DHS 2008, Final report, Table 13.7, p. 177 |
| El Salvador | 2002 | 15+ | 62 | | | | | | | | Ministro de Salud, Situación de los Alimentos Fortificados en El Salvador, 2002, p. 4. |
| Equatorial Guinea | 2000 | 15+ | 33 | | | | | | | | MICS 2000, Final Report, p. 24. |
| Eritrea | 2002 | 15+ | 68 | 81 | 60 | 52 | 56 | 63 | 81 | 85 | DHS 2002, Final Report, Table 10.7, p. 172. |
| Estonia | | | - | | | | | | | | |
| Ethiopia | 2005 | 15+ | 20 | 21 | 20 | 22 | 19 | 20 | 19 | 20 | DHS 2005, Final Report, Table 11.6, p. 151. |
| Fiji | 1994 | not specified | 31 | | | | | | | | National IDD Survey 1994. |
| Finland | | | - | | | | | | | | |
| France | | | - | | | | | | | | |
| Gabon | 2001 | 15+ | 36 | | | | | | | | Rapport Enquête Nationale sur les Troubles Dus a la Carence en Lode au Gabon 2001, Table 18, p. 38. |
| Gambia | 2006 | 15+ | 7 | 5 | 8 | 10 | 4 | 7 | 6 | 6 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Georgia | 2009 | 15+ | 100 | 100 | 100 | | | | | | National Nutrition Survey 2009, Table 20, p. 44 |
| Germany | | | - | | | | | | | | |
| Ghana | 2006 | 15+ | 32 | 45 | 22 | 7 | 17 | 25 | 40 | 65 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Greece | | | - | | | | | | | | |
| Grenada | | | - | | | | | | | | |
| Guatemala | 2007 | 15+ | 76 | | | | | | | | The Situation of Food Fortification 2007, Final report, p. 5 |
| Guinea | 2008 | 15+ | 41 | 34 | 45 | | | | | | Enquête Nationale sur l'état nutritionnel et le suivi des indicateurs de Survie de l'Enfant (ENENSE), Table 6.1a |
| Guinea-Bissau | 2006 | 15+ | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 1 | MICS 2006, Final report, Table NU.5, p. 115 |
| Guyana | | | - | | | | | | | | |
| Haiti | 2005-2006 | 15+ | 3 | 5 | 2 | 2 | 2 | 1 | 3 | 7 | DHS 2005-2006, Final Report, Table 11.6, p. 156 |
| Holy See | | | - | | | | | | | | |
| Honduras | 1998 | 25+ | 80 | | | | | | | | Informe del Depto de Control de Alimentos de la Sec, Salud sobre la Encuesta de Hogares, Componente de Micronutrientes, 2000. |
| Hungary | | | - | | | | | | | | |
| Iceland | | | - | | | | | | | | |
| India | 2005-2006 | 15+ | 51 | 72 | 41 | 30 | 37 | 43 | 62 | 85 | National Family Health Survey 2005-2006 Table 10.17 |
| Indonesia | 2007 | 30+ | 62 | | | | | | | | Basic Health Research 2007, Table 3.22 & 3.23, p.61 & 62 |
| Iran (Islamic Republic of) | 2005 | not specified | 99 | | | | | | | | MOH, Anthropometric Nutritional Indicator Survey II, 2005. |
| Iraq | 2006 | 15+ | 28 | 34 | 16 | | | | | | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Ireland | | | - | | | | | | | | |
| Israel | | | - | | | | | | | | |
| Italy | | | - | | | | | | | | |
| Jamaica | 1999 | not specified | 100 | | | | | | | | |
| Japan | | | - | | | | | | | | |
| Jordan | 2000 | not specified | 88 | | | | | | | | MOH and UNICEF, Assessment of IDD Among Jordanian Children After Introduction of Iodized Salt 2000. |
| Kazakhstan | 2006 | 15+ | 92 | 92 | 92 | 91 | 92 | 93 | 93 | 91 | MICS 2006, Re-analyzed by UNICEF HQ, May 2007. |
| Kenya | 2008-2009 | 15+ | 98 | 98 | 98 | 97 | 97 | 98 | 97 | 98 | DHS 2008-2009, Final report, Table 11.9, p. 157 |
| Kiribati | | | - | | | | | | | | |
| Korea, Democratic People's Republic of | 2004 | not specified | 40 | | | | | | | | National Nutrition Assessment 2004, Table 27, p. 64. |
| Korea, Republic of | | | - | | | | | | | | |
| Kuwait | | | - | | | | | | | | |
| Kyrgyzstan | 2006 | 15+ | 76 | 85 | 70 | 69 | 69 | 68 | 80 | 90 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Lao People's Democratic Republic | 2006 | not specified | 84 | 91 | 81 | 84 | 77 | 78 | 85 | 93 | MICS 2006, Final report, Table NU.5, p. 81 |
| Latvia | | | - | | | | | | | | |
| Lebanon | 2004 | 15+ | 92 | | | | | | | | PAPFAM 2004, Preliminary Report, p. 20. |
| Lesotho | 2004 | 15+ | 91 | 98 | 88 | 82 | 86 | 91 | 95 | 98 | DHS 2004, Final Report, Table 10.6, p. 165. |
| Liberia | | | - | | | | | | | | |
| Libyan Arab Jamahiriya | 1993 | not specified | 90 | | | | | | | | UNICEF Country Office: Nutrition Section / NYHQ database |
| Liechtenstein | | | - | | | | | | | | |
| Lithuania | | | - | | | | | | | | |
| Luxembourg | | | - | | | | | | | | |
| Madagascar | 2008-2009 | 15+ | 53 | 72 | 49 | 32 | 47 | 50 | 58 | 73 | DHS 2008-2009, Final report, Table 11.6, p. 189 |
| Malawi | 2006 | 15+ | 50 | 63 | 46 | 38 | 46 | 49 | 47 | 61 | MICS 2006, Final report, Table 6.9, p. 70 |
| Malaysia | | | - | | | | | | | | |
| Maldives | 2001 | 15+ | 44 | | | | | | | | MICS 2001, Final Report, Figure 5.2. |
| Mali | 2006 | 15+ | 79 | 82 | 78 | 78 | 77 | 76 | 80 | 84 | DHS 2006, Final report, Table 11.5, p.164 |
| Malta | | | - | | | | | | | | |
| Marshall Islands | | | - | | | | | | | | |
| Mauritania | 2008 | 15+ | 23 | | | | | | | | Enquête rapide nationale sur la nutrition et survie de l’enfant en Mauritanie, Table 29, p. 44 |
| Mauritius | 1995 | not specified | 0 | | | | | | | | Survey of Nutrition in Mauritius 1995 |
| Mexico | 2003 | 15+ | 91 | | | | | | | | Asociación Mexicana de la Industria Salinera, Avances en Yodación de Sal en México, May 2004, p. 16. |
| Micronesia (Federated States of) | | | - | | | | | | | | |
| Moldova, Republic of | 2005 | 15+ | 60 | 77 | 49 | 37 | 47 | 58 | 74 | 85 | DHS 2005, Final Report, Table 11.4, p. 143. |
| Monaco | | | - | | | | | | | | |
| Mongolia | 2005 | not specified | 83 | 91 | 72 | 62 | 77 | 88 | 93 | 94 | MICS 2005, Re-analyzed by UNICEF HQ, April 2007. |
| Montenegro | 2000 | 15+ | 71 | | | | | | | | MICS 2000, Final Report from Former Republic of Yugoslavia, Table 17, p. 72. |
| Morocco | 2006 | 15+ | 21 | 28 | 10 | | | | | | MICS 2006, Preliminary report, p. 21 |
| Mozambique | 2008 | 15+ | 25 | 37 | 20 | 12 | 15 | 20 | 34 | 49 | MICS 2008, Statistical Table NU.5 |
| Myanmar | 2007-2008 | 15+ | 93 | | | | | | | | Preliminary report of country-wide school-based survey on availability of iodized salt at household level in Myanmar, Annex 4, p. 20 |
| Namibia | 2000 | not specified | 63 | | | | | | | | DHS 2000, Final Report, Table 2.10, p. 23. |
| Nauru | | | - | | | | | | | | |
| Nepal | 2000 | 15+ | 63 | | | | | | | | BCHIMES 2000, Final Report, Table 6.1, p. 68. |
| Netherlands | | | - | | | | | | | | |
| New Zealand | 1996-1999 | not specified | 83 | | | | | | | | National End-Decade Report 2000. |
| Nicaragua | 2003 | 15+ | 97 | | | | | | | | MOH, SIVIN, Primer Informe de Progreso 2002-2003, Table 10, p. 17. |
| Niger | 2006 | 15+ | 46 | 44 | 47 | 43 | 47 | 47 | 45 | 48 | DHS 2006, Final Report, Table 11.7, p. 182. |
| Nigeria | 2003 | 15+ | 97 | 99 | 97 | | | | | | DHS 2003, Final Report, Table 11.7, p. 160 |
| Niue | | | - | | | | | | | | |
| Norway | | | - | | | | | | | | |
| Occupied PT | 2006 | 15+ | 86 | | | | | | | | Palestinian Family Health Survey 2006. Preliminary Report. Table 8, p. 40. |
| Oman | 2000 | not specified | 69 | | | | | | | | Monitoring Universal Salt Iodization in Oman -2004 |
| Pakistan | 2002 | not specified | 17 | | | | | | | | National Nutrition Survey 2001-2002, Figure 3.5.3, p. 48. |
| Palau | | | - | | | | | | | | |
| Panama | 1998 | not specified | 95 | | | | | | | | MOH, Sistema de Vigilancia de la Yodacion de la Sal 1998. |
| Papua New Guinea | 2006 | 15+ | 92 | | | | | | | | 2005 National Micronutrient Survey (Zero Draft), p. 27 |
| Paraguay | 2006 | 20+ | 94 | | | | | | | | Programa Nacional de Control y Prevención de los desórdenes por deficiencia de yodo - DDI, Encuesta de consumo a escolares |
| Peru | 2004 | 15+ | 91 | | | | | | | | MOH-INS/CENAN, National Monitoring of Nutritional Indicators 2004, Table 50, p. 101. |
| Philippines | 2005 | 15+ | 45 | | | | | | | | 2005 Updating of the Nutritional Status of Filipino Children and Selected Population Groups, Table 23, p. 28 |
| Poland | | | - | | | | | | | | |
| Portugal | | | - | | | | | | | | |
| Qatar | | | - | | | | | | | | |
| Romania | 2004 | 15+ | 74 | | | | | | | | F. Van der Haar, National Nutrition Status Survey 2004, p. 1. |
| Russian Federation | 2002-2003 | not specified | 35 | | | | | | | | KAP Survey 2000-2003. |
| Rwanda | 2005 | 15+ | 88 | 90 | 87 | 88 | 90 | 87 | 86 | 88 | DHS 2005, Final Report, Table 10.5, p. 138. |
| Saint Kitts and Nevis | 2000 | not specified | 100 | | | | | | | | Main Health Centre, Child Health. |
| Saint Lucia | | | - | | | | | | | | |
| Saint Vincent and Grenadines | | | - | | | | | | | | |
| Samoa | | | - | | | | | | | | |
| San Marino | | | - | | | | | | | | |
| Sao Tome and Principe | 2006 | 15+ | 37 | 40 | 33 | 30 | 32 | 36 | 42 | 47 | MICS 2006, Re-analyzed by UNICEF HQ, May 2007. |
| Saudi Arabia | | | - | | | | | | | | |
| Senegal | 2005 | 15+ | 41 | 58 | 26 | 22 | 25 | 36 | 59 | 60 | DHS 2005, Final Report, Table 10.8, p. 194. |
| Serbia | 2007 | 15+ | 32 | | | | | | | | National Survey of the biological impact of Universal Salt Iodization in the Population of Serbia in 2007, p. 32 |
| Seychelles | | | - | | | | | | | | |
| Sierra Leone | 2008 | 15+ | 58 | 70 | 52 | 53 | 52 | 51 | 58 | 76 | DHS 2008, Final report, Table 11.8, p. 160 |
| Singapore | | | - | | | | | | | | |
| Slovakia | | | - | | | | | | | | |
| Slovenia | | | - | | | | | | | | |
| Solomon Islands | | | - | | | | | | | | |
| Somalia | 2006 | 15+ | 1 | 2 | 1 | 2 | 1 | 1 | 2 | 2 | MICS 2006, Final report, Table NU.5, p. 83 |
| South Africa | 1998 | 15+ | 62 | | | | | | | | National Research Programme for Nutritional Intervention, Medical Research Council., National Survey of the Iodine Concentration of Household Salt in South Africa 1998. |
| Spain | | | - | | | | | | | | |
| Sri Lanka | 2006-2007 | not specified | 92 | 93 | 92 | 90 | 92 | 92 | 93 | 96 | DHS 2006-2007, Final report, Table 11.8 |
| Sudan | 2006 | 15+ | 11 | | | 26 | 18 | 11 | 4 | 4 | Sudan Household Health Survey, Final report, Table NU.5 |
| Suriname | | | - | | | | | | | | |
| Swaziland | 2006-2007 | 15+ | 80 | 82 | 79 | 76 | 77 | 78 | 83 | 83 | DHS 2006-07, Final report, Table 11.7, p. 154 |
| Sweden | | | - | | | | | | | | |
| Switzerland | | | - | | | | | | | | |
| Syrian Arab Republic | 2005 | 15+ | 79 | | | | | | | | MoH, Study on the Consumption of Iodized Salt Among Syrian Families, 2006, p. 10 |
| Tajikistan | 2009 | 15+ | 62 | 70 | 52 | | | | | | Micronutrient Status Survey (MNSS) 2009, Appendix 9, Table 92 |
| Tanzania, United Republic of | 2004-2005 | 15+ | 43 | 72 | 34 | 25 | 29 | 33 | 48 | 78 | DHS 2004-05, Final Report, Table 11.6, p. 186. |
| Thailand | 2005-2006 | 15+ | 47 | 62 | 40 | 24 | 36 | 47 | 58 | 69 | MICS 2005-06, Final report, Table 11, p. 11 |
| The former YR Macedonia | 2005 | 20+ | 94 | | | | | | | | MOH, Report on the Activities Implemented by the National Committee for Iodine Deficiency 2005. |
| Timor-Leste | 2007 | 15+ | 60 | 80 | 53 | | | | | | Final Statistical Abstract: Timor-Leste Survey of Living Standards 2007, National Statistics Directorate, Timor-Leste, Table 6.70, p 193 |
| Togo | 2006 | 15+ | 25 | 35 | 19 | 15 | 18 | 23 | 31 | 39 | MICS 2005, Re-analyzed by UNICEF HQ, April 2007. |
| Tonga | | | - | | | | | | | | |
| Trinidad and Tobago | 2006 | 15+ | 28 | | | 25 | 25 | 29 | 30 | 31 | MICS 2006, Re-analyzed by UNICEF HQ, May 2007. |
| Tunisia | 2000 | 15+ | 97 | | | | | | | | MICS 2000, Final Report, Table 1.19. |
| Turkey | 2008 | 15+ | 69 | 76 | 48 | | | | | | DHS 2008, Final report, Table 12.5, p. 178 |
| Turkmenistan | 2006 | 15+ | 87 | 84 | 89 | 84 | 89 | 91 | 88 | 83 | MICS 2006, Re-analyzed by UNICEF HQ, April 2007. |
| Tuvalu | | | - | | | | | | | | |
| Uganda | 2006 | 15+ | 96 | 99 | 95 | 96 | 95 | 94 | 96 | 98 | DHS 2006, Final report, Table 12.9, p. 170 |
| Ukraine | 2005 | 15+ | 18 | 18 | 19 | 17 | 18 | 17 | 20 | 19 | MICS 2005, Draft Final Report, Table NU.5, p. 11 |
| United Arab Emirates | | | - | | | | | | | | |
| United Kingdom | | | - | | | | | | | | |
| United States | | | - | | | | | | | | |
| Uruguay | | | - | | | | | | | | |
| Uzbekistan | 2006 | 15+ | 53 | 62 | 48 | 45 | 46 | 49 | 53 | 67 | MICS 2006, Final report, Table 11, p. 82 |
| Vanuatu | 2007 | 15+ | 23 | 44 | 16 | 8 | 10 | 20 | 27 | 49 | MICS 2007, Final report, Table NU.5, p. 32 |
| Venezuela | 1998 | 15+ | 90 | | | | | | | | Instituto Nacional de Nutricion, UNICEF and OPS, Micronutrientes y Calidad de Vida 1999. |
| Viet Nam | 2006 | 15+ | 93 | | | | | | | | MICS 2006, Final report, Table NU.5, p.141 |
| Yemen | 2003 | 15+ | 30 | | | | | | | | Family Health Survey 2003, Table 12.5, pp. 129-30. |
| Zambia | 2002 | 15+ | 77 | | | | | | | | DHS 2001-2002, Final Report, Table 11.6, p. 173. |
| Zimbabwe | 2007 | not specified | 91 | | | | | | | | 2007 National Nutrition Surveillance Assessment |