New research reveals a surprising connection between obesity and cancer treatment in England. A study involving over 79,000 patients across 13 types of cancer showed that more than half had a history of obesity. However, only about one in four were classified as obese when starting treatment.
The study found that looking at a patient’s past weight raised the obesity prevalence from 26.4% to a striking 53.5%. Notably, even for pancreatic cancer, where the obesity rate at treatment onset was just 13.7%, the lifetime obesity prevalence climbed to 55.8%. This indicates that current weight doesn’t always reflect a person’s overall health.
Led by Professor Simon Lord from the University of Oxford, the research was funded by the World Cancer Research Fund. Published in the journal ESMO Real World Data and Digital Oncology, it underscores the importance of considering a patient’s historical body mass index (BMI) alongside their current weight when deciding on treatments.
Cancers that typically limit food intake, like pancreatic and lung cancer, showed lower obesity rates at the start of treatment. In contrast, higher obesity rates were seen in patients with uterine and breast cancers. Additionally, the study found that older patients had lower obesity levels at treatment beginning, while those living in deprived areas had higher rates.
Experts predict that by 2070, over 2 million cancer cases could be linked to obesity. Understanding how obesity influences cancer outcomes remains a complex issue. Professor Lord emphasized that both current and past obesity matter when assessing cancer prognosis. He stated, “Neglecting one can lead to an incomplete clinical picture.”
Dr. Victoria Perletta, also from the University of Oxford, added that using historical BMI data could improve patient care. It might affect decisions like chemotherapy dosing, leading to more personalized treatment plans.
New weight-loss medications, like GLP-1 receptor agonists, are changing obesity patterns in cancer patients, making it crucial to track these changes. Dr. Helen Croker from the World Cancer Research Fund noted that while the link between obesity and cancer risk is clear, its influence on treatment outcomes is still not fully understood. She emphasized the need for broader datasets to gain insights into these important relationships.
Overall, this study sheds light on how past and present BMI can impact cancer treatment and results. As research continues to evolve, it may lead to better care strategies for cancer patients based on their obesity history.
Source link
Health, Healthy eating, Cancer
