Background: With the changing lifestyle and eating patterns of the society, the incidence of
obesity is increasing day by day. Obesity has a multifactorial causation consisting of
environmental, genetic as well as physiological factors. The present study seeks to determine if
there is any association between ABO blood groups and body mass index.
Materials and methods: Our study involves 200 medical students consisting of 102 boys and 98
girls in the age group of 18-23 years in the Government Medical College, Amritsar. Weight,
height for BMI and blood groups are used in order to find any association between ABO blood
group and BMI.
Results: Overweight and obesity was found more prevalent in boys than girls, 22.5% students
were overweight and 15.5% were obese. The prevalence of overweight was (24.52% boys and
20.40% girls) and prevalence of obesity was (25.49% boys and 5.10% girls). Blood group B was
reported the most common blood groups (37.5%) followed by blood group O (32.0%), while
blood groups A and AB were found 19.5% and 11% of participants, respectively. The prevalence
of overweight (BMI 25-29.9) among participants based on blood group O, A, AB and B was
29.69%, 25.64%, 18.18%, 16.00%, while obesity (BMI >30) among participants based on blood
groups B, O, A and AB was 24.00%, 10.94%, 10.26% and 9.09%.
Conclusion: Prevalence of overweight and obesity was more in blood group O and B
respectively and was more in males than females.
Key words: ABO Blood Groups, Body Mass Index, Overweight and Obesity