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Welcome to IthaMaps

IthaMaps is a global epidemiology database of heamoglobinopathies, illustrating published data on a dynamic global to regional map. Country-specific information on haemoglobinopathy-related policies, prevalence, incidence and overall disease burden is given, including relative allele frequencies of specific globin mutations in each country and/or region, dynamically linked to corresponding IthaGenes entries.

IthaMaps content was supported by partnership with the HVP Global Globin 2020 Challenge

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Major haemoglobinopathies:

  Prevalence of Hb C carriers by country

CountryContinentValue (% of the population)CommentsPMID
CountryContinentValue (% of the population)CommentsPMID
United Arab EmiratesAsia0.05[16602448]
Antigua and BarbudaNorth America2From: Modell's Haemoglobinopathologist's Almanac.
AnguillaNorth America0From: Modell's Haemoglobinopathologist's Almanac.
AngolaAfrica0.1[26633548]
ArgentinaSouth America0From: Modell's Haemoglobinopathologist's Almanac.
AustriaEurope0[17365984]
ArubaNorth America1.86[20099768]
BarbadosNorth America4.6From: Modell's Haemoglobinopathologist's Almanac.
BelgiumEurope0.02[17365984]
Burkina FasoAfrica19.3[12144053]
BahrainAsia0[15751927]
BurundiAfrica0[26633548]
BeninAfrica10.86[31523029]
BermudaNorth America2From: Modell's Haemoglobinopathologist's Almanac.
BoliviaSouth America0From: Modell's Haemoglobinopathologist's Almanac.
BrazilSouth America0.04National Health Survey 2014-2015[31596378]
BahamasNorth America3From: Modell's Haemoglobinopathologist's Almanac.
BelizeNorth America1From: Modell's Haemoglobinopathologist's Almanac.
CanadaNorth America0.097From: Modell's Haemoglobinopathologist's Almanac.
Democratic Republic of the CongoAfrica2.38East of the Democratic Republic of Congo.[17925082]
SwitzerlandEurope0.02[17365984]
Ivory CoastAfrica5.3
ChileSouth America0From: Modell's Haemoglobinopathologist's Almanac.
ColombiaSouth America2.55From: Modell's Haemoglobinopathologist's Almanac.
Costa RicaNorth America0.2From: Modell's Haemoglobinopathologist's Almanac.
CubaNorth America0.6Screening of pregnant women during 1982-2018.[32335567]
CuracaoNorth America6.7[20099768]
GermanyEurope0.01HbC is not found in native Germans [PMID: 28383793].[17365984]
DenmarkEurope0.01[17365984]
DominicaNorth America1.5From: Modell's Haemoglobinopathologist's Almanac.
Dominican RepublicNorth America3From: Modell's Haemoglobinopathologist's Almanac.
AlgeriaAfrica0.4[21415987]
EcuadorSouth America1Among afro-descendant populations.[23557107]
SpainEurope0.03[17365984]
FinlandEurope0[17365984]
Falkland IslandsSouth America0From: Modell's Haemoglobinopathologist's Almanac.
FranceEurope0.2
United KingdomEurope0.13From: Modell's Haemoglobinopathologist's Almanac.
GrenadaNorth America3.29[29183229]
French GuianaSouth America1From: Modell's Haemoglobinopathologist's Almanac.
GhanaAfrica10.5[20231425]
GreenlandNorth America0From: Modell's Haemoglobinopathologist's Almanac.
GuadeloupeNorth America2.7From: Modell's Haemoglobinopathologist's Almanac.
GreeceEurope0.002[17365984]
GuatemalaNorth America0From: Modell's Haemoglobinopathologist's Almanac.
Guinea-BissauAfrica0.3[16840226]
GuyanaSouth America1From: Modell's Haemoglobinopathologist's Almanac.
HondurasNorth America0.04From: Modell's Haemoglobinopathologist's Almanac.
HaitiNorth America2.5[23757318]
IrelandEurope0.02[17365984]
IranAsia0.047Pilot NBS study in Ahvaz, Khoramshahr, Sosangerd, Dezful (2013-2015) [From: IJPHO, 2018, 8(2):105]
ItalyEurope1<1%
JamaicaNorth America4From: Modell's Haemoglobinopathologist's Almanac.
Saint Kitts and NevisNorth America4From: Modell's Haemoglobinopathologist's Almanac.
Cayman IslandsNorth America0From: Modell's Haemoglobinopathologist's Almanac.
LebanonAsia0[26633548]
Saint LuciaNorth America3From: Modell's Haemoglobinopathologist's Almanac.
LiberiaAfrica0.11[26739520]
LuxembourgEurope0.01[17365984]
MoroccoAfrica1.07[21415987]
MaliAfrica10.2[26633548]
MartiniqueNorth America4.5From: Modell's Haemoglobinopathologist's Almanac.
MauritaniaAfrica3[12107561]
MontserratNorth America4From: Modell's Haemoglobinopathologist's Almanac.
MexicoNorth America0.05From: Modell's Haemoglobinopathologist's Almanac.
MalaysiaAsia0.9
NigeriaAfrica1.1[26633548]
NicaraguaNorth America0.24From: Modell's Haemoglobinopathologist's Almanac.
NetherlandsEurope0.1[17365984]
NorwayEurope0.01[17365984]
PanamaNorth America0.3From: Modell's Haemoglobinopathologist's Almanac.
PeruSouth America0From: Modell's Haemoglobinopathologist's Almanac.
Saint Pierre and MiquelonNorth America0From: Modell's Haemoglobinopathologist's Almanac.
Puerto RicoNorth America1From: Modell's Haemoglobinopathologist's Almanac.
PortugalEurope0.01[17365984]
ParaguaySouth America0From: Modell's Haemoglobinopathologist's Almanac.
RwandaAfrica0.2[26633548]
SudanAfrica0.6Among Sudanese tribes, Khartoum.
SwedenEurope0.01[17365984]
SenegalAfrica1[26633548]
SurinameSouth America1.5From: Modell's Haemoglobinopathologist's Almanac.
El SalvadorNorth America0From: Modell's Haemoglobinopathologist's Almanac.
Sint MaartenNorth America4.86[20099768]
Turks and Caicos IslandsNorth America4From: Modell's Haemoglobinopathologist's Almanac.
TogoAfrica8.8[26633548]
TunisiaAfrica0.7[26633548]
TurkeyAsia0.001[17365984]
Trinidad and TobagoNorth America2From: Modell's Haemoglobinopathologist's Almanac.
United StatesNorth America0.353[22307997]
UruguaySouth America0From: Modell's Haemoglobinopathologist's Almanac.
Saint Vincent and the GrenadinesNorth America3From: Modell's Haemoglobinopathologist's Almanac.
VenezuelaSouth America0.401From: Modell's Haemoglobinopathologist's Almanac.
British Virgin IslandsNorth America2From: Modell's Haemoglobinopathologist's Almanac.
U.S. Virgin IslandsNorth America2From: Modell's Haemoglobinopathologist's Almanac.
YemenAsia0[26633548]

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Important Note: The relative allele frequencies presented in IthaMaps are not calculated by ITHANET, but they are extracted from the corresponding publications. ITHANET is not responsible for any mistakes in the data. Please use this information with caution! We encourage scientists that have more detailed or updated epidemiological information to contact us.

Disclaimer: The information on this website is provided as an information resource only and must not to be used as a substitute for professional diagnosis and treatment. The ITHANET Portal and IthaMaps are not responsible or liable for any advice, course of treatment, diagnosis or any other information, services or products that an individual obtains through this website.