Multivariate analysis of factors affecting overall survival in minority-based population of young colorectal cancer patients: A single-institution experience.

e14186 Background: Overall survival in colorectal cancer is influenced by obesity, age, gender and stage at diagnosis. However, in minority based populations, effect of the above factors on overall survival has not been studied in any detail. Hence, we undertook this retrospective study to evaluate effect of above factors on overall survival in young colorectal cancer patients. Methods: 1,195 subjects with colorectal cancer treated at John H. Stroger Hospital of Cook County between 2000 and 2008 were retrospectively analyzed. 179 subjects with age 50 years and younger were identified. 146 of 179 subjects with available Body Mass Index (BMI) in kg/m2 were included in the study. Effect of BMI, age, sex, race, LDH and CEA levels, stage, site of tumor, smoking and family history on overall survival was evaluated using standard statistical multivariate analysis. Results: In our population, 22 of 146(15%) were underweight (BMI<20), 56 of 146(38.4%) were normal weight (BMI 20-24.9), 46 of 146(31.5%) were overweight (BMI 25-29.9) and 22 of 146(15%) were obese (BMI >30). Male: female ratio was 1.4:1. 75 of 146(51.7%) were African American, 23 of 146(15.9%) were Caucasians. 50 of 146(34.2%) were stage IV colorectal cancer at diagnosis. On univariate analysis, BMI<20(p=0.031, HR 2.1, 95% CI 1.15-3.82), CEA >4ng/ml (p=0.005, HR 1.93, 95% CI 1.21-3.08) and stage IV colorectal cancer (p<0.001, HR 6.1, 95% CI 2.42-15.53) were significantly associated with decreased overall survival. LDH<200 U/L was significantly associated with improved overall survival (p 0.029, HR 0.6, 95% CI 0.391-0.950). On multivariate analysis, stage IV colorectal cancer was a single significant independent predictor of overall survival (p=0.001, 95% CI 2.47-27.78). CEA>4ng/ml was marginally significant for decreased overall survival (p=0.06, 95% CI 0.978-3.015). On the contrary, no statistically significant difference was found on overall survival with age, BMI>20, gender, race, tumor location, smoking and family history. Conclusions: Advanced stage and CEA >4ng/ml are independent prognostic variables for decreased overall survival in minority based population of young colorectal cancer.

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Improved Overall Survival of Colorectal Cancer under Multidisciplinary Team: A Meta-Analysis

BioMed Research International ◽

10.1155/2021/5541613 ◽

2021 ◽

Vol 2021 ◽

pp. 1-7

Author(s):

Dong Peng ◽

Yu-Xi Cheng ◽

Yong Cheng

Keyword(s):

Colorectal Cancer ◽

Overall Survival ◽

Multidisciplinary Team ◽

Meta Analysis ◽

Postoperative Mortality ◽

Stage Iv ◽

Cochrane Library ◽

Stage Iv Colorectal Cancer ◽

Significant Difference ◽

Colorectal Cancer Patients

Purpose. The purpose of the current meta-analysis was to evaluate whether multidisciplinary team improved overall survival of colorectal cancer. Methods. PubMed, EMBASE, and Cochrane Library database were searched from inception to October 25, 2020. The hazard ratio (HR) and 95% confidence (CI) of overall survival (OS) were calculated. Results. A total of 11 studies with 30814 patients were included in this meta-analysis. After pooling the HRs, the MDT group was associated with better OS compared with the non-MDT group ( HR = 0.81 , 95% CI 0.69-0.94, p = 0.005 ). In subgroup analysis of stage IV colorectal cancer, the MDT group was associated with better OS as well ( HR = 0.73 , 95% CI 0.59-0.90, p = 0.004 ). However, in terms of postoperative mortality, no significant difference was found between MDT and non-MDT groups ( OR = 0.84 , 95% CI 0.44-1.61, p = 0.60 ). Conclusion. MDT could improve OS of colorectal cancer patients.

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Nomogram for predicting overall survival in colorectal cancer with distant metastasis

BMC Gastroenterology ◽

10.1186/s12876-021-01692-x ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Zheng Liu ◽

Yao Xu ◽

Guijun Xu ◽

Vladimir P. Baklaushev ◽

Vladimir P. Chekhonin ◽

...

Keyword(s):

Colorectal Cancer ◽

Overall Survival ◽

Prognostic Factors ◽

Cancer Patients ◽

Distant Metastasis ◽

Primary Tumour ◽

Stage Iv ◽

Cox Proportional Hazards ◽

Stage Iv Colorectal Cancer ◽

Colorectal Cancer Patients

Abstract Background Colorectal cancer (CRC) is a major cancer burden, and prognosis is determined by many demographic and clinicopathologic factors. The present study aimed to construct a prognostic nomogram for colorectal cancer patients with distant metastasis. Methods Colorectal cancer patients with distant metastasis diagnosed between 2010 and 2016 were selected from the Surveillance, Epidemiology, and End Results database. Cox proportional hazards regression was used to identify independent prognostic factors. A nomogram was constructed to predict survival, and validation was performed. Results A total of 7099 stage IV colorectal cancer patients were enrolled in the construction cohort. The median overall survival was 20.0 (95% CI 19.3–20.7) months. Age at diagnosis, marital status, race, primary tumour site, tumour grade, CEA level, T stage, N stage, presence of bone, brain, liver and lung metastasis, surgery for primary site and performance of chemotherapy were independent prognostic factors. The nomogram was constructed and the calibration curve showed satisfactory agreement. The C-index was 0.742 (95% CI 0.726–0.758). In the validation cohort (7098 patients), the nomogram showed satisfactory discrimination and calibration with a C-index of 0.746 (95% CI 0.730–0.762). Conclusion A series of factors associated with the survival of CRC patients with distant metastasis were found. Based on the identified factors, a nomogram was generated to predict the survival of stage IV colorectal cancer patients. The predictive model showed satisfactory discrimination and calibration, which can provide a reference for survival estimation and individualized treatment decisions.

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Overall survival of elderly metastatic colorectal cancer patients treated in second and third line by tumor site.

Journal of Clinical Oncology ◽

10.1200/jco.2017.35.4_suppl.742 ◽

2017 ◽

Vol 35 (4_suppl) ◽

pp. 742-742

Author(s):

Patricia Luhn ◽

Edward Cha ◽

Angela Fu-Chi Hsieh ◽

Michael Taylor ◽

William Grossman

Keyword(s):

Colorectal Cancer ◽

Overall Survival ◽

Metastatic Colorectal Cancer ◽

Cancer Patients ◽

Stage Iv ◽

Stage Iv Colorectal Cancer ◽

First Line Therapy ◽

Third Line ◽

Colorectal Cancer Patients ◽

The Impact

742 Background: The anatomical side of the colon where a tumor arises has been shown to be prognostic in patients treated with first-line therapy; patients with tumors that arise from the left side of the colon have significantly longer survival compared with patients whose tumors arise from the right side of the colon. However, there is little evidence of whether this factor is prognostic in later lines of treatment. The objective of this study was to determine the impact of tumor side on the survival of metastatic colorectal cancer patients who received second line (2L) or third line (3L) therapy. Methods: Metastatic (stage IV) colorectal cancer patients in the Surveillance, Epidemiology, and End Results (SEER) database linked to Medicare claims diagnosed 2001-2005 who received 2L (n = 921) or 3L (n = 502) therapy were included in the study. Overall survival (OS) was determined from the start of the indicated line of therapy and was estimated using the Kaplan-Meier method; statistical differences were tested using the log-rank tests. Results: The distribution of tumor sites was similar for 2L and 3L treated patients (right: 36%; left: 58%; transverse: 6%; for 2L). The median follow up time from start of therapy was 11 months (mo) for 2L and 10 mo for 3L patients. Median OS for left-sided tumors receiving 2L+ therapy was 13.6 mo (95%CI: 11.9, 14.8) compared with 8.7 mo (95%CI: 7.5, 9.9) for right-sided tumors (log-rank p < 0.001). Similar results were seen in patients receiving 3L+ therapy, although the difference was of lesser magnitude. The median OS for patients with left-sided tumors was 10.8 mo (95%CI: 9.6, 12.9) compared with 7.6 mo (95%CI: 5.7, 9.4) for right-sided tumors (log-rank p = 0.002). Conclusions: These results suggest that side of tumor origin remains a prognostic factor for colorectal cancer patients treated in later lines of therapy (2L+).

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