12/27/2022 0 Comments Blood type percentages![]() You are also classified as either Rh positive or Rh negative. The map should be understood as a tool allowing us to notice general trends, as small differences are unlikely to be statistically significant. All donors belong to one of four blood groups: A, B, AB or O. They come from different years (which are often impossible to establish), and some of them may be outdated. The data must be, therefore, taken with a big pinch of salt. The map is based on an article on Wikipedia, which compiles data from many different sources. The following map shows the distribution of the O, A, B, and AB blood types in the population by country in Europe (with colouring indicating the most common type, which in itself is not a reliable indicator of anything else the actual figures are more important). Globally, the most common blood type is O, but the most common blood type of Europeans is A. As a result, its distribution varies among ethnic groups. The ABO blood group is determined genetically. The immune system of the recipient may react (often fatally) to the presence of antigens that are not supposed to be present in the blood in particular, O-type blood is compatible with all other blood types (since no antigens are present), whereas AB-type blood is only compatible with AB (since both antigens are present). This is important when blood is transferred from one person to another. Simply put, the labels O, A, B, and AB indicate whether the antigens A and B are present on the red blood cells of a person (O stands for “no antigens”, while AB means that both are present). The ABO blood group system is the most important blood type classification system for humans. It will teach you how to avoid mistakes with commas, prepositions, irregular verbs, and much more. Minority and diverse populations, therefore, play a critical role in meeting the constant need for blood.Tip: See my list of the Most Common Mistakes in English. Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood, in particular, is the universal type needed for emergency transfusions. The 10 countries with the highest prevalence of type AB+ blood: Bangladesh (16.85) North Korea (11.32) South Korea (10.98) Japan (9.9) Pakistan (9.52). For example, 51 percent of African-Americans and 57 percent of Hispanics are type O, but only 45 percent of Caucasians are type O. So Sickle cell patients with these blood types must rely on donors with matching blood types within their own community.ĭifferent ethnic and racial groups also have different frequencies of the main blood types in their populations. For example, U-negative and Duffy-negative blood types are unique to African-Americans. Therefore, it is essential that the donor diversity match the patient diversity. Certain blood types are unique to specific racial and ethnic groups. There are more than 600 known antigens besides A and B. ![]() If all eligible donors gave at least twice a year, it would help prevent blood shortages. The table below lists each of the blood types, including how common. However, shortages of all types of blood occur during the summer and winter holidays. The most common blood type in Australia is O positive and the least common is AB negative. Miller-Keystone Blood Center often runs short of types O and B blood, and AB plasma. TypeĪs you can see, some types mix, while others don’t, but each type is important when it comes to saving lives. Click your type below to learn more about it. Safe blood transfusions depend on careful blood typing and cross-matching. Each letter refers to a kind of antigen, or protein, on the surface of red blood cells. Each is paired with a + or – Rh factor, which is determined by the presence or absence of substances that can trigger immune responses if they are foreign to the body. Human blood is grouped into four types: A, B, AB, and O. The four main ABO blood types are O, A, B, and AB. Even though all blood consists of the same basic elements, not all blood is alike. ![]() Over 100 years ago, it was discovered that people have different types of blood. ![]()
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