The KidsRights Index comprises a ranking of all states that are parties to the United Nations (UN) Convention on the Rights of the Child (CRC) and for which sufficient data is available. This is a total number of 165 countries in 2017. At present the Convention on the Rights of the Child (1989) is ratified by all of the world’s nations but one: the United States of America.
For some countries there is not enough data to be assessed in the Index: Andorra, Antigua and Barbuda, Bahamas, Barbados, Cape Verde, Cook Islands, Democratic People's Republic of Korea, Dominica, Fiji, Grenada, Holy See, Kiribati, Marshall Islands, Micronesia (Federated States of), Monaco, Niue, Palau, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, San Marino, Seychelles, Solomon Islands, Sudan, Tonga and Tuvalu. Poland and Liechtenstein are no longer included in the overall KidsRights Index ranking 2016 and 2017 because of the large number of missing data on domain 5 ‘Child Rights Environment’. However, Poland and Liechtenstein are included in the ranking of domains 1 to 4 of the KidsRights Index 2016.