We investigated the relationship between body mass index and risk of atrial fibrillation

Men and women who are overweight or obese are at increased risk of development of atrial fibrillation (AF), according to a study published in the journal JAHA.

Using data from 24 799 adult Norwegians, the researchers analyzed the relationship between changes of body mass index and the risk of developing AF. The observation lasted for 16 years. During this time the OP occurred in 811 (6,2%) males and 918 (7.9 percent) women.

The results showed that even in the presence of minor excess weight increase in body mass index (BMI) was associated with an increased risk of AF. For example, compared with BMI=23, within the range of a healthy weight men with a BMI of 25 is the probability of developing AF was increased by 14%. However, BMI=18, indicating insufficient weight was associated with reduced risk of AF by 25% compared to BMI=23.

Among the women were identified a similar pattern, noted by scholars. Men and women a decrease in BMI over time was associated with a reduced risk of AF, and the increase in BMI was associated with increased risk of AF, they concluded.