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Table 1 Number of qualifying surveys available for Global Burden of Disease (GBD) sub-regions.

From: What is the global burden of visual impairment?

GBD sub-region* WHO member countries Population† (millions) Number of qualifying surveys
Africa region
AFRO D Algeria, Angola, Benin, Burkina Faso, Cameroon, Cape Verde, Chad, Comoros, Djibouti, Equatorial Guinea, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Madagascar, Mali, Mauritania, Mauritius, Niger, Nigeria, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, Somalia, Sudan, Togo 354 0
AFRO E Botswana, Burundi, Central African Republic, Congo, Côte d'Ivoire, Democratic Republic of The Congo, Eritrea, Ethiopia, Kenya, Lesotho, Malawi, Mozambique, Namibia, Rwanda, South Africa, Swaziland, Uganda, United Republic of Tanzania, Zambia, Zimbabwe 361 1
Americas region
AMRO A Canada, United States of America 322 0
AMRO B Antigua and Barbuda, Argentina, Bahamas, Barbados, Belize, Brazil, Chile, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guyana, Honduras, Jamaica, Mexico, Panama, Paraguay, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and The Grenadines, Suriname, Trinidad and Tobago, Uruguay, Venezuela 456 0
AMRO D Bolivia, Ecuador, Guatemala, Haiti, Nicaragua, Peru 74 0
Eastern Mediterranean region
EMRO B Bahrain, Cyprus, Iran (Islamic Republic of), Jordan, Kuwait, Lebanon, Libyan Arab Jamahiriya, Oman, Qatar, Saudi Arabia, Syrian Arab Republic, Tunisia, United Arab Emirates 143 1
EMRO D Egypt, Iraq, Morocco, Yemen 144 0
Europe region
EURO A Andorra, Austria, Belgium, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Israel, Italy, Luxembourg, Malta, Monaco, Netherlands, Norway, Portugal, San Marino, Slovenia, Spain, Sweden, Switzerland, United Kingdom 415 0
EURO B1 Albania, Bosnia and Herzegovina, Bulgaria, Georgia, Poland, Romania, Slovakia, The Former Yugoslav Republic of Macedonia, Turkey, Yugoslavia 170 1
EURO B2 Armenia, Azerbaijan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan 53 0
EURO C Belarus, Estonia, Hungary, Kazakhstan, Latvia, Lithuania, Republic of Moldova, Russian Federation, Ukraine 240 0
South-East Asia region
SEARO B Brunei Darussalam, Indonesia, Malaysia, Philippines, Singapore, Sri Lanka, Thailand 405 1
SEARO D Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan 1394 3
Western Pacific region
WPRO A Australia, Japan, New Zealand 151 1
WPRO B1 China, DPR Korea, Mongolia, Republic of Korea 1375 1
WPRO B2 Cambodia, Lao People's Democratic Republic, Myanmar, Vietnam 148 0
WPRO B3 Cook Islands, Fiji, Kiribati, Marshall Islands, Micronesia (Federated States of), Nauru, Niue, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu 8 0
Total   6213 9
  1. *GBD sub-regions as per the GBD 2000 Project; the letter with each sub-region indicates mortality stratum: A is very low child mortality and low adult mortality, B is low child mortality and low adult mortality, C is low child mortality and high adult mortality, D is high child mortality and high adult mortality, E is high child mortality and very high adult mortality; EURO B and WPRO B sub-divided further to capture epidemiological differences; this classification aims at maximising the epidemiological homogeneity of sub-regions [7].
  2. †Population based on United Nations estimates for 2002 [20], as used for the WHO base visual impairment estimates [1].