British journal of cancer · 2015
Severe obesity prior to diagnosis limits survival in colorectal cancer patients evaluated at a large cancer centre.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Daniel C R, Shu X, Ye Y, Gu J, Raju G S, Kopetz S, Wu X
Аннотация
BACKGROUND: In contrast to the consistent evidence for obesity and colorectal cancer (CRC) risk, the impact of obesity in CRC patients is less clear. In a well-characterised cohort of CRC patients, we prospectively evaluated class I and class II obesity with survival outcomes.
METHODS: The CRC patients (N=634) were followed from the date of diagnosis until disease progression/first recurrence (progression-free survival (PFS)) or death (overall survival (OS)). Body mass index (BMI) was calculated from reported usual weight prior to diagnosis. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated in models adjusted for clinicopathologic, treatment, and lifestyle factors.
RESULTS: Over a median follow-up of 4 years, 208 (33%) patients died and 235 (37%) recurred or progressed. Class II obesity, as compared with either overweight or normal weight, was associated with an increased risk of death (HR and 95% CI: 1.55 (0.97-2.48) and 1.65 (1.02-2.68), respectively), but no clear association was observed with PFS. In analyses restricted to patients who presented as stages I-III, who reported stable weight, or who were aged <50 years, obesity was associated with a significant two- to five-fold increased risk of death.
CONCLUSIONS: In CRC patients evaluated at a large cancer centre, severely obese patients experienced worse survival outcomes independent of many other factors.
METHODS: The CRC patients (N=634) were followed from the date of diagnosis until disease progression/first recurrence (progression-free survival (PFS)) or death (overall survival (OS)). Body mass index (BMI) was calculated from reported usual weight prior to diagnosis. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated in models adjusted for clinicopathologic, treatment, and lifestyle factors.
RESULTS: Over a median follow-up of 4 years, 208 (33%) patients died and 235 (37%) recurred or progressed. Class II obesity, as compared with either overweight or normal weight, was associated with an increased risk of death (HR and 95% CI: 1.55 (0.97-2.48) and 1.65 (1.02-2.68), respectively), but no clear association was observed with PFS. In analyses restricted to patients who presented as stages I-III, who reported stable weight, or who were aged <50 years, obesity was associated with a significant two- to five-fold increased risk of death.
CONCLUSIONS: In CRC patients evaluated at a large cancer centre, severely obese patients experienced worse survival outcomes independent of many other factors.