期刊
CANCER
卷 98, 期 3, 页码 484-495出版社
JOHN WILEY & SONS INC
DOI: 10.1002/cncr.11544
关键词
colon carcinoma; obesity; body mass index; adjuvant chemotherapy; treatment-related toxicity
类别
资金
- NCI NIH HHS [T32 CA 090001-27] Funding Source: Medline
BACKGROUND. Obesity is a risk factor for the development of colon carcinoma. The influence of body mass index (BMI) on long-term outcomes and treatment-related toxicity in patients with colon carcinoma has not been well characterized. METHODS. This cohort study was conducted within a large, randomized adjuvant chemotherapy trial of 3759 men and women with high-risk, Stage 11 and Stage III colon carcinoma who were treated between 1988 and 1992 throughout the United States. With a median follow-up of 9.4 years, the authors examined the influence of BMI on disease recurrence, overall survival, and treatment-related toxicity. RESULTS. Compared with women of normal weight (BMI, 21.0-24.9 kg/m(2)), obese women with colon carcinoma (BMI greater than or equal to 30.0 kg/m(2)) experienced significantly worse overall mortality (hazard ratio [HR], 1.34; 95% confidence interval [95% CI], 1.07-1.67) and a nonsignificant increase in the risk of disease recurrence (HR, 1.24; 95% Cl, 0.98-1.59). The influence of BMI among women was not related to any differences in chemotherapy dose-intensity across categories of BMI. In contrast, BMI was not related significantly to long-term outcomes among male patients in this cohort. Among all study participants, obese patients had significantly lower rates of Grade 3-4 leukopenia and lower rates of any Grade greater than or equal to 3 toxicity compared with patients of normal weight. CONCLUSIONS. Among women with Stage II-III colon carcinoma, obesity was associated with a significant increase in overall mortality as well as a borderline significant increase in disease recurrence. Nonetheless, obesity was not associated with any increase in chemotherapy-related toxicity. (C) 2003 American Cancer Society.
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