Body Mass Index Trends
Body mass index (BMI) is a widely used screening measure to categorize weight status in adults and children. Population-level BMI distributions have shifted substantially over recent decades. The goal of this tracker is to provide insight into how the distribution of BMI categories across the population continues to change.
Data
Adult BMI Distributions
Q1 2026
Distribution of patients across body mass index (BMI) categories of all adults measured each quarter.
Female BMI Distributions
Q1 2026
Distribution of patients across body mass index (BMI) categories of all female adults measured each quarter.
Male BMI Distributions
Q1 2026
Distribution of patients across body mass index (BMI) categories of all male adults measured each quarter.
Received GLP-1s BMI Distributions
Q1 2026
Distribution of patients across body mass index (BMI) categories of all adults who had previously received a GLP-1 prescription measured each quarter.
Metric Definitions
- BMI Classification
- Patients are classified by their lowest BMI documented each quarter. BMI readings under 10 or over 200 are not considered. Patients must be 18 or older and not pregnant at the encounter. Patients with a documented amputation during the quarter or prior are excluded.
- Underweight BMI under 18.5
- Healthy BMI is at least 18.5 and under 25
- Overweight BMI is at least 25 and under 30
- Obese Class 1 BMI at least 30 and under 35
- Obese Class 2 BMI at least 35 and under 40
- Obese Class 3 BMI at least 40 and under 35
- Amputation
- A diagnosis with ICD-10-CM codes Z89.41* - Z89.44*, Z89.51*, or Z89.61*. A procedure with ICD-10-PCS codes 0Y6* or ICD-9-CM Volume 3 codes 84.10 or 84.12 - 84.19.
- Type 2 Diabetes
- A diagnosis with ICD-10-CM codes E11*.
- GLP-1
- Medications with a simple generic name of "semaglutide", "liraglutide", "tirzepatide", "dulaglutide", "exenatide", "exenatide microspheres", or "insulin degludec/liraglutide" and at least one of:
- A pharmaceutical class of "ANTI-OBESITY GLUCAGON-LIKE PEPTIDE-1 RECEP AGONIST" or "ANTIHYPERGLYCEMIC - INCRETIN MIMETICS COMBINATION"
- A pharmaceutical class that contains "GLP-1"
- A pharmaceutical subclass that contains the text "GLP-1"
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ExpandPandemic Pound Theories Don’t Hold Weight
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