A new study from France has determined that a person’s blood type may influence their risk of developing type 2 diabetes. Previous studies have linked blood type and stroke finding that people with blood type AB are at higher risk.
The data analyzed consisted of 82,104 women who were a part of the French E3N study, a cohort of almost 100,000 female teachers that began in 1990. Health questionnaires completed by the women identified 3,553 women who received a diagnosis of type 2 diabetes between 1990 and 2008. Blood samples from the women were collected between 1995 and 1997.
The research findings, published in the journal Diabetologia, revealed that Women with blood type B+ were at 35% higher risk of type 2 diabetes, women with blood type A were 10% more likely to develop type 2 diabetes than women with blood type O, while women with blood type B were 21% more likely to develop the condition. Women with blood group AB+ were at 26% higher risk of type 2 diabetes, those with blood group A- were at 22% higher risk.
The findings for blood groups O-, B- and AB- were not statistically significant.
“Our findings support a strong relationship between blood group and diabetes risk, with participants with the O blood type having a lower risk of developing type 2 diabetes”, said Dr. Fagherazzi the lead author of the study. “Therefore, the effects of blood groups should be investigated in future clinical and epidemiological studies on diabetes. Further pathophysiological research is also needed to determine why the individuals with blood type O have a lower risk of type 2 diabetes.”
ABO and Rhesus blood groups and risk of type 2 diabetes: evidence from the large E3N cohort study, Guy Fagherazzi, et al., Diabetologia, doi: 10.1007/s00125-014-3472-9, published online 18 December 2014.