edmonton_obesity_staging_system: Edmonton Obesity Staging System (EOSS)

In cliot: Clinical Indices and Outcomes Tools

Edmonton Obesity Staging System (EOSS)

Description

Calculates the EOSS Stage to classify obesity based on the presence and severity of risk factors, comorbidities, and functional limitations. Unlike BMI, which measures size, EOSS measures the impact of obesity on health, guiding clinical management from prevention to palliative care.

Usage

edmonton_obesity_staging_system(severe_functional_limitations, end_organ_damage,
                                established_comorbidity, subclinical_risk_factors)

Arguments

severe_functional_limitations	Numeric (0 or 1). Presence of severe (end-stage) disabilities or severe psychopathology. (1 = Yes).
end_organ_damage	Numeric (0 or 1). Presence of established end-organ damage (e.g., myocardial infarction, heart failure, diabetic complications, stroke). (1 = Yes).
established_comorbidity	Numeric (0 or 1). Presence of established obesity-related chronic disease (e.g., hypertension, type 2 diabetes, sleep apnea, osteoarthritis) or moderate functional limitations. (1 = Yes).
subclinical_risk_factors	Numeric (0 or 1). Presence of subclinical risk factors (e.g., borderline hypertension, impaired fasting glucose, elevated liver enzymes) or mild physical symptoms. (1 = Yes).

Value

A list containing:

EOSS_Stage	The calculated stage (0, 1, 2, 3, or 4).
Description	Clinical definition of the stage.
Management_Recommendation	Guideline-based management strategy.

References

Sharma AM, Kushner RF. A proposed clinical staging system for obesity. Int J Obes (Lond). 2009;33(3):289-295. doi:10.1038/ijo.2009.2

Examples

# Example 1: Stage 2 (Established Disease)
# Patient has Type 2 Diabetes and Hypertension, no end-organ damage
edmonton_obesity_staging_system(0, 0, 1, 1)

# Example 2: Stage 0 (Metabolically Healthy)
# No risk factors or symptoms identified
edmonton_obesity_staging_system(0, 0, 0, 0)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.