1 in 300 (NIDCD); 1 in 600 (NIAID); 1 in 333 Caucasians.
| Country/Region | Extrapolated Prevalence | Population Estimated Used |
| Selective IgA Deficiency in North America (Extrapolated Statistics) |
| USA | 978,851 | 293,655,4051 |
| Canada | 108,359 WARNING! (Details) | 32,507,8742 |
| Mexico | 349,865 WARNING! (Details) | 104,959,5942 |
| Selective IgA Deficiency in Central America (Extrapolated Statistics) |
| Belize | 909 WARNING! (Details) | 272,9452 |
| Guatemala | 47,601 WARNING! (Details) | 14,280,5962 |
| Nicaragua | 17,865 WARNING! (Details) | 5,359,7592 |
| Selective IgA Deficiency in Caribbean (Extrapolated Statistics) |
| Puerto Rico | 12,993 WARNING! (Details) | 3,897,9602 |
| Selective IgA Deficiency in South America (Extrapolated Statistics) |
| Brazil | 613,670 WARNING! (Details) | 184,101,1092 |
| Chile | 52,746 WARNING! (Details) | 15,823,9572 |
| Colombia | 141,035 WARNING! (Details) | 42,310,7752 |
| Paraguay | 20,637 WARNING! (Details) | 6,191,3682 |
| Peru | 91,814 WARNING! (Details) | 27,544,3052 |
| Venezuela | 83,391 WARNING! (Details) | 25,017,3872 |
| Selective IgA Deficiency in Northern Europe (Extrapolated Statistics) |
| Denmark | 18,044 WARNING! (Details) | 5,413,3922 |
| Finland | 17,381 WARNING! (Details) | 5,214,5122 |
| Iceland | 979 WARNING! (Details) | 293,9662 |
| Sweden | 29,954 WARNING! (Details) | 8,986,4002 |
| Selective IgA Deficiency in Western Europe (Extrapolated Statistics) |
| Britain (United Kingdom) | 200,902 WARNING! (Details) | 60,270,708 for UK2 |
| Belgium | 34,494 WARNING! (Details) | 10,348,2762 |
| France | 201,414 WARNING! (Details) | 60,424,2132 |
| Ireland | 13,231 WARNING! (Details) | 3,969,5582 |
| Luxembourg | 1,542 WARNING! (Details) | 462,6902 |
| Monaco | 107 WARNING! (Details) | 32,2702 |
| Netherlands (Holland) | 54,393 WARNING! (Details) | 16,318,1992 |
| United Kingdom | 200,902 WARNING! (Details) | 60,270,7082 |
| Wales | 9,726 WARNING! (Details) | 2,918,0002 |
| Selective IgA Deficiency in Central Europe (Extrapolated Statistics) |
| Austria | 27,249 WARNING! (Details) | 8,174,7622 |
| Czech Republic | 4,153 WARNING! (Details) | 1,0246,1782 |
| Germany | 274,748 WARNING! (Details) | 82,424,6092 |
| Hungary | 33,441 WARNING! (Details) | 10,032,3752 |
| Liechtenstein | 111 WARNING! (Details) | 33,4362 |
| Poland | 128,754 WARNING! (Details) | 38,626,3492 |
| Slovakia | 18,078 WARNING! (Details) | 5,423,5672 |
| Slovenia | 6,704 WARNING! (Details) | 2,011,473 2 |
| Switzerland | 24,836 WARNING! (Details) | 7,450,8672 |
| Selective IgA Deficiency in Eastern Europe (Extrapolated Statistics) |
| Belarus | 34,368 WARNING! (Details) | 10,310,5202 |
| Estonia | 4,472 WARNING! (Details) | 1,341,6642 |
| Latvia | 7,687 WARNING! (Details) | 2,306,3062 |
| Lithuania | 12,026 WARNING! (Details) | 3,607,8992 |
| Russia | 479,913 WARNING! (Details) | 143,974,0592 |
| Ukraine | 159,106 WARNING! (Details) | 47,732,0792 |
| Selective IgA Deficiency in the Southwestern Europe (Extrapolated Statistics) |
| Azerbaijan | 26,227 WARNING! (Details) | 7,868,3852 |
| Georgia | 15,646 WARNING! (Details) | 4,693,8922 |
| Portugal | 35,080 WARNING! (Details) | 10,524,1452 |
| Spain | 134,269 WARNING! (Details) | 40,280,7802 |
| Selective IgA Deficiency in Southern Europe (Extrapolated Statistics) |
| Greece | 35,491 WARNING! (Details) | 10,647,5292 |
| Italy | 193,524 WARNING! (Details) | 58,057,4772 |
| Selective IgA Deficiency in the Southeastern Europe (Extrapolated Statistics) |
| Albania | 11,816 WARNING! (Details) | 3,544,8082 |
| Bosnia and Herzegovina | 1,358 WARNING! (Details) | 407,6082 |
| Bulgaria | 25,059 WARNING! (Details) | 7,517,9732 |
| Croatia | 14,989 WARNING! (Details) | 4,496,8692 |
| Macedonia | 6,800 WARNING! (Details) | 2,040,0852 |
| Romania | 74,518 WARNING! (Details) | 22,355,5512 |
| Serbia and Montenegro | 36,086 WARNING! (Details) | 10,825,9002 |
| Selective IgA Deficiency in Northern Asia (Extrapolated Statistics) |
| Mongolia | 9,171 WARNING! (Details) | 2,751,3142 |
| Selective IgA Deficiency in Central Asia (Extrapolated Statistics) |
| Kazakhstan | 50,479 WARNING! (Details) | 15,143,7042 |
| Tajikistan | 23,371 WARNING! (Details) | 7,011,556 2 |
| Uzbekistan | 88,034 WARNING! (Details) | 26,410,4162 |
| Selective IgA Deficiency in Eastern Asia (Extrapolated Statistics) |
| China | 4,329,492 WARNING! (Details) | 1,298,847,6242 |
| Hong Kong s.a.r. | 22,850 WARNING! (Details) | 6,855,1252 |
| Japan | 424,443 WARNING! (Details) | 127,333,0022 |
| Macau s.a.r. | 1,484 WARNING! (Details) | 445,2862 |
| North Korea | 75,658 WARNING! (Details) | 22,697,5532 |
| South Korea | 160,779 WARNING! (Details) | 48,233,7602 |
| Taiwan | 75,832 WARNING! (Details) | 22,749,8382 |
| Selective IgA Deficiency in Southwestern Asia (Extrapolated Statistics) |
| Turkey | 229,646 WARNING! (Details) | 68,893,9182 |
| Selective IgA Deficiency in Southern Asia (Extrapolated Statistics) |
| Afghanistan | 95,045 WARNING! (Details) | 28,513,6772 |
| Bangladesh | 471,134 WARNING! (Details) | 141,340,4762 |
| Bhutan | 7,285 WARNING! (Details) | 2,185,5692 |
| India | 3,550,235 WARNING! (Details) | 1,065,070,6072 |
| Pakistan | 530,654 WARNING! (Details) | 159,196,3362 |
| Sri Lanka | 66,350 WARNING! (Details) | 19,905,1652 |
| Selective IgA Deficiency in Southeastern Asia (Extrapolated Statistics) |
| East Timor | 3,397 WARNING! (Details) | 1,019,2522 |
| Indonesia | 794,843 WARNING! (Details) | 238,452,9522 |
| Laos | 20,227 WARNING! (Details) | 6,068,1172 |
| Malaysia | 78,408 WARNING! (Details) | 23,522,4822 |
| Philippines | 287,472 WARNING! (Details) | 86,241,6972 |
| Singapore | 14,512 WARNING! (Details) | 4,353,8932 |
| Thailand | 216,218 WARNING! (Details) | 64,865,5232 |
| Vietnam | 275,542 WARNING! (Details) | 82,662,8002 |
| Selective IgA Deficiency in the Middle East (Extrapolated Statistics) |
| Gaza strip | 4,416 WARNING! (Details) | 1,324,9912 |
| Iran | 225,010 WARNING! (Details) | 67,503,2052 |
| Iraq | 84,582 WARNING! (Details) | 25,374,6912 |
| Israel | 20,663 WARNING! (Details) | 6,199,0082 |
| Jordan | 18,704 WARNING! (Details) | 5,611,2022 |
| Kuwait | 7,525 WARNING! (Details) | 2,257,5492 |
| Lebanon | 12,590 WARNING! (Details) | 3,777,2182 |
| Saudi Arabia | 85,986 WARNING! (Details) | 25,795,9382 |
| Syria | 60,056 WARNING! (Details) | 18,016,8742 |
| United Arab Emirates | 8,413 WARNING! (Details) | 2,523,9152 |
| West Bank | 7,704 WARNING! (Details) | 2,311,2042 |
| Yemen | 66,749 WARNING! (Details) | 20,024,8672 |
| Selective IgA Deficiency in Northern Africa (Extrapolated Statistics) |
| Egypt | 253,724 WARNING! (Details) | 76,117,4212 |
| Libya | 18,771 WARNING! (Details) | 5,631,5852 |
| Sudan | 130,493 WARNING! (Details) | 39,148,1622 |
| Selective IgA Deficiency in Western Africa (Extrapolated Statistics) |
| Congo Brazzaville | 9,993 WARNING! (Details) | 2,998,0402 |
| Ghana | 69,190 WARNING! (Details) | 20,757,0322 |
| Liberia | 11,302 WARNING! (Details) | 3,390,6352 |
| Niger | 37,868 WARNING! (Details) | 11,360,5382 |
| Nigeria | 59,167 WARNING! (Details) | 12,5750,3562 |
| Senegal | 36,173 WARNING! (Details) | 10,852,1472 |
| Sierra leone | 19,612 WARNING! (Details) | 5,883,8892 |
| Selective IgA Deficiency in Central Africa (Extrapolated Statistics) |
| Central African Republic | 12,474 WARNING! (Details) | 3,742,4822 |
| Chad | 31,795 WARNING! (Details) | 9,538,5442 |
| Congo kinshasa | 194,390 WARNING! (Details) | 58,317,0302 |
| Rwanda | 27,462 WARNING! (Details) | 8,238,6732 |
| Selective IgA Deficiency in Eastern Africa (Extrapolated Statistics) |
| Ethiopia | 237,788 WARNING! (Details) | 71,336,5712 |
| Kenya | 109,940 WARNING! (Details) | 32,982,1092 |
| Somalia | 27,682 WARNING! (Details) | 8,304,6012 |
| Tanzania | 120,236 WARNING! (Details) | 36,070,7992 |
| Uganda | 87,967 WARNING! (Details) | 26,390,2582 |
| Selective IgA Deficiency in Southern Africa (Extrapolated Statistics) |
| Angola | 36,595 WARNING! (Details) | 10,978,5522 |
| Botswana | 5,464 WARNING! (Details) | 1,639,2312 |
| South Africa | 148,161 WARNING! (Details) | 44,448,4702 |
| Swaziland | 3,897 WARNING! (Details) | 1,169,2412 |
| Zambia | 36,752 WARNING! (Details) | 11,025,6902 |
| Zimbabwe | 12,239 WARNING! (Details) | 1,2671,8602 |
| Selective IgA Deficiency in Oceania (Extrapolated Statistics) |
| Australia | 66,377 WARNING! (Details) | 19,913,1442 |
| New Zealand | 13,312 WARNING! (Details) | 3,993,8172 |
| Papua New Guinea | 18,067 WARNING! (Details) | 5,420,2802 |
The word 'prevalence' of Selective IgA Deficiency usually means the estimated population
of people who are managing Selective IgA Deficiency at any given time (i.e. people with Selective IgA Deficiency).
The term 'incidence' of Selective IgA Deficiency means the annual diagnosis rate,
or the number of new cases of Selective IgA Deficiency diagnosed each year (i.e. getting Selective IgA Deficiency).
Hence, these two statistics types can differ:
a short disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.