Which abbreviation corresponds to 'Body mass index'?

The abbreviation that corresponds to 'Body mass index' is BMI. This term is widely used in both medical settings and everyday conversations to assess an individual's body weight relative to their height. BMI is calculated by taking a person's weight in kilograms and dividing it by the square of their height in meters. This simple formula allows healthcare professionals to classify individuals into categories such as underweight, healthy weight, overweight, and obesity, helping to identify potential health risks associated with body weight.

The other options do not accurately represent the term 'Body mass index'. BM is often a general abbreviation for body mass, while ABMI and OBM do not correspond to any recognized medical terms related to body mass index. Therefore, BMI is the universally accepted and correct abbreviation for 'Body mass index'.