Individuals with obesity, particularly those at risk for gastrointestinal cancers
Care Setting
Cancer prevention and public health frameworks
Key Highlights
Prediagnostic weight loss can lead to underestimation of BMI near cancer diagnosis.
Single-time-point BMI measurements may not reflect cumulative exposure to excess weight.
Waist circumference may better capture risk associated with visceral adiposity than BMI in some populations.
Guideline-Based Recommendations
Diagnosis
Consider lifetime weight exposure rather than single-point BMI measurements.
Incorporate central obesity measures such as waist circumference alongside BMI.
Management
Integrate obesity control more fully into cancer prevention strategies.
Evaluate bariatric surgery benefits and risks for obesity-related cancer prevention.
Consider potential benefits and risks of glucagon-like peptide-1 receptor agonists in cancer risk.
Monitoring & Follow-up
Exclude early postrecruitment cancer cases to avoid bias from prediagnostic weight loss in epidemiologic studies.
Monitor changes in weight over time rather than relying on single measurements.
Risks
Bariatric surgery may reduce risk for several obesity-related cancers but could increase colorectal cancer risk after certain procedures.
Glucagon-like peptide-1 receptor agonists may have potential cancer risks including kidney and thyroid malignancies.
Patient & Prescribing Data
Patients with obesity at risk for obesity-related cancers
Bariatric surgery shows association with reduced risk for some cancers; glucagon-like peptide-1 receptor agonists have mixed evidence requiring further research.
Clinical Best Practices
Use comprehensive weight history and central obesity measures for accurate cancer risk assessment.
Incorporate obesity prevention and control into cancer prevention programs.
Exercise caution and monitor for potential cancer risks when prescribing obesity-related interventions.
