A positive - 31% A negative - 7% B positive - 8% B negative - 2%
The second most common blood type is A positive which occurs in "33% of Caucasian, 24% of African American, 27% of Asian and 29% of Latino American" populations," says the Red Cross.
Most common blood type by ethnicity
African American: 47% O-positive, 24% A-positive, and 18% B-positive. Latin American: 53% O-positive, 29% A-positive, and 9% B-positive. Asian: 39% O-positive, 27% A-positive, and 25% B-positive. Caucasian: 37% O-positive, 33% A-positive, and 9% B-positive.
Around 30% of donors have A positive blood, making it the second most common blood type after O positive (36%).
Type A+ donors can help change the world by donating whole blood and by donating platelets (an apheresis procedure that takes longer but often goes to cancer patients). And Type A and AB plasma are often used for trauma patients and accident victims.
Of the eight main blood types, people with Type O have the lowest risk for heart attacks and blood clots in the legs and lungs. This may be because people with other blood types have higher levels of certain clotting factors, which are proteins that cause blood to coagulate (solidify).
Brothers and sisters don't always share the same blood type. The genotype of both parents plays a role in defining the blood type. For instance, children of parents with the genotypes AO and BO may have the blood types A, B, AB, or O. Thus, siblings do not necessarily have the same blood type.
Type O positive blood is given to patients more than any other blood type, which is why it's considered the most needed blood type.
In Aboriginal individuals we found that group O was more common than A in the 'Northern' NT, whereas there was similar distribution of the groups in 'Central Australia'. Conclusions: We found a significant difference in ABO and RhD blood groups between Aboriginal and non-Aboriginal individuals in the NT (P < 0.001).
Although type O comes from a recessive gene—if one parent has A or B blood, the child will be A or B—O is the oldest type, reports the BBC. A and B types only emerged in the last 20,000 years or so, and are still spreading. This underscores the need for a variety of donors, says Dr.
Irish Blood Group Type Frequency Distribution
Blood group O Positive is the most common group in Ireland while AB negative is the least common.
Thirty-four of every 100 people have A+. These are rare blood types and less than 10 percent of the population have this blood type.
Is A negative blood rare? Around 8% of donors have A negative blood. In comparison, 30% of donors have A positive blood.
A+: 35.7% A-: 6.3%
Certain blood types are unique to specific racial and ethnic groups. Therefore, it is essential that donor diversity match patient diversity. For example, U-negative and Duffy-negative blood types are unique to the African American community.
The most common blood group for people living in the UK (44%) is the O group blood, followed by the A blood group (42%). This means these blood groups are the most commonly requested by hospitals for patients in need. The least common blood groups are B (10%) and AB (4%) blood groups.
China blood phenotype is dominated by O type, but the r gene frequency is obviously lower than other countries.
Rh incompatibility occurs when the mother's blood type is Rh negative and her fetus' blood type is Rh positive. Antibodies from an Rh negative mother may enter the blood stream of her unborn Rh positive infant, damaging the red blood cells (RBCs).
A baby may have the blood type and Rh factor of either parent, or a combination of both parents. Rh factors follow a common pattern of genetic inheritance. The Rh-positive gene is dominant (stronger) and even when paired with an Rh-negative gene, the positive gene takes over.