scholarly journals AGING AND THERAPEUTIC DELAY IN COLORECTAL CANCER: A FRENCH POPULATION-BASED STUDY

2016 ◽  
pp. 1-8
Author(s):  
C. Montuclard ◽  
V. Jooste ◽  
V. Quipourt ◽  
S. Marilier ◽  
J. Faivre ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Elderly Patients ◽  
Age Groups ◽  
Population Based ◽  
80 And Over ◽  
Aged 80 And Over ◽  
Private Care ◽  
Colon And Rectal Cancer

Background/Objectives: Data on the time between colorectal cancer diagnosis and treatment in real-life practice for elderly patients are scarce. We measured times from diagnosis to first-course therapy in elderly patients with colon and rectal cancers. Design: The study was carried out on the population-based Burgundy Digestive Cancer Registry (France). Setting: Therapeutic delays were described by medians and interquartile ranges and compared by the Kruskal-Wallis rank test. Factors associated with changes in therapeutic delay were identified using a multivariate Cox model. Participants: The analysis was carried out on 2,884 patients aged 60 years and over with colorectal adenocarcinoma diagnosed between 2005 and 2011. Measurements and Results: The median therapeutic delay for colon cancer was 25 days in patients aged 60 to 69 years and 24 days for those aged 70-79 years. The delay fell significantly to 19 days in patients aged 80 and over (p<0.001). The median therapeutic delay for rectal cancer did not vary according to age group (respectively 39, 38 and 33 days). For colon cancer, a Charlson comorbidity score=0, in all age groups, and private care for patients under 80 years, significantly shortened the therapeutic delay. It was significantly longer during the period [2008-2011] only in patients under 80 (HR: 0.89 [0.81 - 0.99] p=0.037). For rectal cancer, only advanced stage (HR advanced vs II: 1.39 [1.04-1.86], p=0.025) shortened the therapeutic delay in patients under 80, while private care shortened therapeutic delay only in patients over 80 (HR private vs public: 1.66 [1.00-2.74], p=0.049). Conclusion: This study highlights that differences in therapeutic delay for the elderly increased over time for colon and rectal cancer. The therapeutic delay did not differ much between the 60-69 and the 70-79 years age groups, whereas it was shorter for patients aged 80 and over.

scholarly journals Changes in the quality of care of colorectal cancer in Estonia: a population-based high-resolution study

BMJ Open ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. e035556
Author(s):  
Heigo Reima ◽  
Jaan Soplepmann ◽  
Anneli Elme ◽  
Mari Lõhmus ◽  
Rena Tiigi ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Clinical Data ◽  
Population Based ◽  
Treatment Patterns ◽  
Stage Iii ◽  
Liver Imaging ◽  
Colon And Rectal Cancer ◽  
Incident Cases

ObjectivesLarge disparities in colorectal cancer (CRC) management and survival have been observed across Europe. Despite recent increases, the survival deficit of Estonian patients with CRC persists, particularly for rectal cancer. The aim of this study was to examine diagnostic, staging and treatment patterns of CRC in Estonia, comparing clinical data from 1997 and 2011.DesignNationwide population-based retrospective study.SettingEstonia.ParticipantsAll incident cases of colon and rectal cancer diagnosed in 1997 and 2011 identified from the Estonian Cancer Registry. Clinical data gathered from medical records.Outcome measuresDifferences in diagnostic, staging and treatment patterns; 5-year relative survival ratios.ResultsThe number of colon cancer cases was 337 in 1997 and 498 in 2011; for rectal cancer, the respective numbers were 209 and 349. From 1997 to 2011, large increases were seen in the use of colonoscopy and lung and liver imaging. Radical resection rate increased from 48% to 59%, but emergency surgeries showed a rise from 18% to 26% in colon and from 7% to 14% in rectal cancer. The proportion of radically operated patients with ≥12 lymph nodes examined pathologically increased from 2% to 58% in colon cancer and from 2% to 50% in rectal cancer. The use of neoadjuvant radiotherapy increased from 6% to 39% among stage II and from 20% to 50% among patients with stage III rectal cancer. The use of adjuvant chemotherapy in stage III colon cancer increased from 42% to 63%. The 5-year RSR increased from 50% to 58% in colon cancer and from 37% to 64% in patients with rectal cancer.ConclusionsMajor improvements were seen in the diagnostics, staging and treatment of CRC in Estonia contributing to better outcomes. Increase in emergency surgeries highlights possible shortcomings in timely diagnosis and treatment.

Colorectal cancer under the age of 50 years in U.S. Department of Veterans Affairs: Is there a role of early screening?

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 4072-4072
Author(s):  
Abdul Moiz Khan ◽  
Zainub Ajmal ◽  
Usman Naseer ◽  
Darren Gemoets ◽  
Syed Arzoo Mehdi
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
African Americans ◽  
Age Groups ◽  
Stage Iii ◽  
Age Group ◽  
Early Screening ◽  
Screening Guidelines ◽  
Colon And Rectal Cancer

4072 Background: While the overall incidence of colorectal cancer (CRC) is decreasing, the rate has increased in population under 50, with higher stages at diagnosis and a greater proportion of African Americans (AA). Hence, there is an ongoing debate about the age of CRC screening. These trends have not been studied in the VA population. Methods: ICD-10 codes C18-C20 were used to identify the cases of colon and rectal cancer in National VA Cancer Cube Registry. 43,544 cases of colon cancer, 1,278 below and 42,254 above age 50, and 19,815 cases of rectal cancer, 862 below and 18,948 above age 50 were identified between 2003-17. Younger age group was defined as patients less than 50 years old. IRB approval was obtained. Results: Our data comprised > 97% of male patients. In younger group, in the 5 year periods, 2003-07, 2008-12 and 2013-17, colon cancer rate increased from 2.59% to 2.79% to 3.59%, while for rectal cancer it increased from 3.5% to 4.3% to 5.3% (p < .0001). Blacks comprise 31.6% cases of colon cancer and 27.15% cases of rectal cancer in under 50 group, compared to 18.5% and 15.9% of cases in above 50 group respectively (p < .0001). For under 50 group, 48.6% cases of colon and 42.2% cases of rectal cancer were diagnosed in stage III or IV compared to 35.7% and 34.05% cases in above 50 group respectively (p < .0001). For colon cancer, 51.87% of patients in the younger group have a < 5 year survival, worse compared to 45.05% in 50-60 group (p < .0001) and similar to 49.3% in 60-70 group (p = .08). For rectal cancer, 5 year survival showed no difference between these groups. Stage specific survival shows no difference for either colon or rectal cancer across < 50, 50-60 and 60-70 age groups. Conclusions: Rate of CRC is rising in < 50 age group with more advanced stage at diagnosis and higher proportion of African Americans. For colon cancer, < 50 group has a worse 5 year survival as compared to 50-60 age group likely due to increased proportion of patients in stage III or IV, as there is no difference in stage specific survival. For rectal cancer, the 5 year survival or stage specific survival shows no difference in < 50, 50-60 and 60-70 groups. These results add to our understanding of the trends of CRC and should be accounted for in the screening guidelines.

Adjuvant treatment in extreme elderly patients with colorectal cancer.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 784-784
Author(s):  
Marta Llopis Cuquerella ◽  
Maria del Carmen Ors Castaño ◽  
María Ballester Espinosa ◽  
Alejandra Magdaleno Cremades ◽  
Vicente Boix Aracil ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Elderly Patients ◽  
Cancer Patients ◽  
Adjuvant Treatment ◽  
Stage Ii ◽  
Stage Iii ◽  
Complementary Treatment ◽  
Colorectal Cancer Patients

784 Background: Surgical and adjuvant treatment in extreme elderly ( > 80 years) patients with localized colorectal cancer is an unresolved issue. Owing to the lack of available neither clinical practice nor investigational data in this field we present our experience in this scenario. Methods: We retrospectively reviewed data regarding surgical and complementary treatment for colorectal cancer patients aged more than 80 consecutively attended by General Surgery Department in Vega Baja Hospital between 2008 and 2013. Results: A total number of 115 colorectal cancer patients were registered. 95 patients diagnosed of localized disease were selected for analysis. Colon vs rectal cancer ratio was 4:1. Median age was 83.6 years (80-94). Male sex was predominant (60 patients, 63.2%). Emergency surgery was performed in 15 patients (15.8%). Complementary treatment to surgery was advised, according to international guidelines, in 53 patients (55.8%). 10 patients (18.9%) with an advise of adjuvant treatment finally received it. More patients with rectal cancer received recommended treatment (41.7% rectal vs 12.2% colon cancer). Patients with stage III disease were more frequently finally treated according to guidelines (22.2 % stage III vs 11.8% stage II). More patients with stage II rectal cancer were advised and received treatment (recommendation: 66.7% rectal vs 36.1% colon cancer; administration: 25% rectal vs 7.7% colon cancer). Treatment was also more frequently administered to stage III rectal cancer (50% rectal vs 14.3% rectal cancer) (Table). Conclusions: Our experience in localized colorectal cancer in extreme elderly patients ( > 80 years) showed that, although advised according to guidelines, most of them did not receive adjuvant treatment to surgery. Complementary treatment administration was more common in rectal cancer patients and with more advanced disease. [Table: see text]

Use of Adjuvant Chemotherapy and Radiation Therapy for Colorectal Cancer in a Population-Based Cohort

2003 ◽  
Vol 21 (7) ◽  
pp. 1293-1300 ◽  
Author(s):  
John Z. Ayanian ◽  
Alan M. Zaslavsky ◽  
Charles S. Fuchs ◽  
Edward Guadagnoli ◽  
Cynthia M. Creech ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Radiation Therapy ◽  
Adjuvant Chemotherapy ◽  
Adjuvant Therapy ◽  
Population Based ◽  
Stage Ii ◽  
Stage Iii Colon Cancer ◽  
Adjuvant Therapies

Purpose: Randomized trials have demonstrated that adjuvant chemotherapy improves survival for patients with stage III colon cancer and that chemotherapy combined with radiation therapy improves survival for patients with stage II or III rectal cancer. This population-based study was designed to assess use of these treatments in clinical practice. Patients and Methods: From the California Cancer Registry, we identified all patients diagnosed during 1996 to 1997 with stage III colon cancer (n = 1,422) and stage II or III rectal cancer (n = 534) in 22 northern California counties. To supplement registry data on adjuvant therapies and ascertain reasons they were not used, we surveyed physicians or reviewed office records for 1,449 patients (74%). Results: Chemotherapy rates varied widely by age from 88% (age < 55 years) to 11% (age ≥ 85 years), and radiation therapy varied similarly. Adjusting for demographic, clinical, and hospital characteristics, chemotherapy was used less often among older and unmarried patients, and radiation therapy was used less often among older patients, black patients, and those initially treated in low-volume hospitals. Adjusted rates of chemotherapy varied significantly (P < .01) among individual hospitals: 79% and 51%, respectively, at one SD above and below average (67%). Physicians’ reasons for not providing adjuvant therapy included patient refusal (30% for chemotherapy, 22% for radiation therapy), comorbid illness (22% and 14%, respectively), or lack of clinical indication (22% and 45%, respectively). Conclusion: Use of adjuvant therapy for colorectal cancer varies substantially by age, race, marital status, hospital volume, and individual hospital, indicating opportunities to improve care. With enhanced data on adjuvant therapies, population-based registries could become a valuable resource for monitoring the quality of cancer care.

scholarly journals Revised TN Categorization for Colon Cancer Based on National Survival Outcomes Data

2010 ◽  
Vol 28 (2) ◽  
pp. 264-271 ◽  
Author(s):  
Leonard L. Gunderson ◽  
John Milburn Jessup ◽  
Daniel J. Sargent ◽  
Frederick L. Greene ◽  
Andrew K. Stewart
Keyword(s):  
Rectal Cancer ◽  
Colon Cancer ◽  
Survival Data ◽  
Population Based ◽  
Stage Iii ◽  
Survival Outcomes ◽  
Depth Of Invasion ◽  
Cancer Data ◽  
Colon And Rectal Cancer ◽  
Better Than

Purpose The sixth edition of American Joint Committee on Cancer (AJCC) Cancer Staging Manual for colon cancer subdivided stage II into IIA (T3N0) and IIB (T4N0) and stage III into IIIA (T1-2N1M0), IIIB (T3-4N1M0), and IIIC (anyTN2M0). Subsequent analyses supported revised substaging of stage III because of improved survival for T1-2N2 versus T3-4N2 and T4N1 survival was more similar to T3-4N2 than to T3N1. The AJCC Hindgut Taskforce sought population-based validation that depth of invasion and nodal status interact to affect survival. Patients and Methods Surveillance, Epidemiology, and End Results (SEER) population-based data from January 1992 to December 2004 for 109,953 colon cancer patients were compared with National Cancer Data Base (NCDB) data on 134,206 patients. T4N0 cancers were stratified by tumors that perforate visceral peritoneum (T4a) versus tumors that invade or are adherent to adjacent organs or structures (T4b). N1 and N2 were stratified by number of involved positive lymph nodes (N+): N1a/N1b (1 v 2-3), N2a/N2b (4 to 6 v ≥ 7). Five-year observed and relative survival data were obtained for each TN category. Results SEER colon cancer analyses confirm that patients with T1-2N0 cancers have better survival than T3N0, T3N0 better than T4N0, T1-2N2 better than T3-4N2, and T4bN1 similar to T4N2. Patients with T4a lesions have better survival than T4b by N category. The number of positive nodes affects survival for each T category. Conclusion This SEER population-based colon cancer analysis is highly consistent with rectal cancer pooled analysis and SEER rectal cancer analyses, supporting the shift of T1-2N2 lesions from IIIC to IIIA/IIIB, shifting T4bN1 from IIIB to IIIC, subdividing T4/N1/N2, and revising substaging of stages II/III. Survival outcomes by TN category for colon and rectal cancer are strikingly similar.

scholarly journals Effect of Chemotherapy and Radiotherapy on Cognitive Function in Colorectal Cancer: Evidence from National Representative Longitudinal Database

2021 ◽  
Author(s):  
Kwanghyun Kim ◽  
Chang Woo Kim ◽  
Aesun Shin ◽  
Hyunseok Kang ◽  
Sun Jae Jung
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Cognitive Impairment ◽  
Elderly Patients ◽  
Cancer Patients ◽  
Cox Regression ◽  
Chemotherapy Agent ◽  
Colon And Rectal Cancer ◽  
Colorectal Cancer Patients ◽  
Chemotherapy Agents

Background: We aimed to assess the risk of chemotherapy- and radiotherapy-related cognitive impairment in colorectal cancer patients. Methods: We randomly selected 40% of colorectal cancer patients from Korean National Health Insurance Database (NHID), 2004-2018 (N=148,848). Patients with one or more ICD-10 diagnostic codes for dementia or mild cognitive impairment was defined as cognitive impairment cases. Patients who were aged 18 or younger, diagnosed with cognitive impairment before colorectal cancer (N=8,225) and did not receive primary resection (N=45,320) were excluded. The effects of each chemotherapy agent on cognitive impairment were estimated. We additionally estimated the effect of radiotherapy in rectal cancer patients. Time-dependent competing risk Cox regression was conducted to estimate overall and age-specific hazard ratios (HR) separately for colon and rectal cancer. Results: In colon cancer, capecitabine and irinotecan was associated with higher cognitive im-pairment, while 5-fluorouracil was not. In rectal cancer, no chemotherapy agents increased the risk of cognitive impairment, nor did radiotherapy. Hazardous association of irinotecan was estimated larger in elderly patients compared with younger counterparts. Conclusion: Heterogeneous associations between various chemotherapy agents and cognitive impairment were observed. Elderly patients were more vulnerable to possible adverse cognitive effects. Radiotherapy did not increase the risk of cognitive impairment.

AGE PECULIARITIES OF COLORECTAL CANCER INCIDENCE IN THE REPUBLIC OF BASHKORTOSTAN

2019 ◽  
Vol 25 (2) ◽  
pp. 100-103
Author(s):  
M. Yu. Pavlova ◽  
L. P Dautova ◽  
Nazira Kh. Sharafutdinova ◽  
R. Z Sultanov
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Urban Areas ◽  
Age Groups ◽  
Malignant Neoplasms ◽  
Age Group ◽  
Newly Diagnosed ◽  
Republic Of Bashkortostan ◽  
The Republic

In the Russian Federation in recent years, there has been an increase in the incidence of colorectal cancer. The probability of the disease with colorectal cancer increases after 40 years and sharply increases after 50 years. Aim. To study the age-specific features of the prevalence of colorectal cancer in the Republic of Bashkortostan. Materials and methods. As the research materials, the form of Federal statistical observation No. 7 “Information on the incidence of malignant neoplasms” was used in the Republic of Bashkortostan for 2008-2016. The indicators of the incidence of colorectal and rectum cancer per 100 thousand of the population, depending on age and sex, are calculated. Results and discussion. The lowest incidence of colorectal cancer was observed in the age group up to 30 years, the largest - at the age of 70 years and older. For the years 2008-2016 the proportion of patients younger than 50 years with newly diagnosed colon cancer increased from 8.1% to 9.0% and rectum from 7.2% to 8.1%. In this age group there was an increase in primary incidence of colorectal cancer among men by 84.0%, among women by 50.0%, rectal cancer by 54.2% and 68.0%, respectively. The decrease in the incidence of colorectal cancer in the age group of 70 years and older. The average annual incidence rate of colorectal cancer was higher among men than among women in the age groups 50-59, 60-69 years and 70 years and older, rectal cancer in all age groups, with differences increasing with age. During the observation period, the mean age of patients with newly diagnosed colon cancer was reduced by 1.5 years, rectal by 1.3 years. Among patients with colorectal cancer living in urban areas, the average age was higher than in rural areas. The conclusion. The revealed sex-age features of the prevalence of colorectal cancer were used in the development of measures to improve medical care for patients.

Risk and predictors of suicide in colorectal cancer patients: A SEER analysis.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 9596-9596
Author(s):  
Haider Samawi ◽  
Abdel Aziz Shaheen ◽  
Patricia Tang ◽  
Daniel Yick Chin Heng ◽  
Winson Y. Cheung ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Cancer Patients ◽  
Primary Tumor ◽  
Univariate Analysis ◽  
Male Gender ◽  
White Race ◽  
Colon And Rectal Cancer ◽  
Increased Risk

9596 Background: Colorectal cancer (CRC) patients have a higher risk of suicide as compared with the general population. Due to differences in the sites/morbidity of recurrences as well as ostomy rates, we sought to evaluate the distribution and predictors of suicide among patients with colon and rectal cancer. Methods: A retrospective analysis was undertaken using the Surveillance, Epidemiology, and End Results (SEER) database from 1973-2009. Patients included were >18yrs and had confirmed adenocarcinoma of the colon or rectum. Results: Included in this analysis were 187,996 rectal cancer and 443,368 colon cancer patients. Colon cancer patients were older (median age 71 vs. 67 yrs, p <0.001) and included more females (51 vs. 43%, p <0.001) as compared to rectal cancer patients. Suicide rates were similar (611 [0.14%] vs. 337 [0.18%], p <0.001), as was the median time to suicide for colon vs. rectal cancer patients respectively (37 vs.32 months, p = 0.13). On univariate analysis, having rectal cancer was a predictor of suicide (HR 1.26; 95% CI: 1.10-1.43). However after adjustment for age, sex, race, marital, primary site surgery, stage and one primary, rectal cancer was not a predictor of suicide (HR 1.05; CI: 0.83- 1.33). In the combined CRC cohort, independent predictors of suicide included age >70 (HR 1.55; CI: 1.23-1.94), male gender (HR 7.56; CI: 5.34-10.70), being single (HR 1.56; CI: 1.14- 2.13), distant metastases at diagnosis (HR 1.58; CI: 1.13- 2.21), and white race (HR 3.21; CI: 1.75- 5.88). Also, lack of resection of primary tumor was associated with increased risk of suicide (HR 2.83; CI: 1.97- 4.05). Among colon cancer cohort, older age, male gender, and white race as well as lack of primary resection were independent predictors of suicide. Similarly, the aforementioned predictors as well as metastatic disease on presentation were the independent predictors of suicide in the rectal cohort. Conclusions: The suicide risk in CRC patients is low (< 0.2%) and no difference was found based on location of primary tumor. Gender, age, distant spread of disease, intact primary tumour and race are the main predictors of suicide among colorectal patients. Future studies and interventions are needed to target these high risk groups.

Colorectal Cancer in Korea: Characteristics and Trends

2002 ◽  
Vol 88 (4) ◽  
pp. 262-265 ◽  
Author(s):  
Dong-Wan Kim ◽  
Yung-Jue Bang ◽  
Dae Seog Heo ◽  
Noe Kyeong Kim
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Cancer Patients ◽  
Population Based ◽  
University Hospital ◽  
Primary Tumor Site ◽  
Western Countries ◽  
Site Distribution ◽  
National University

Aims and Background Colorectal cancer is the fourth leading cause of malignancy in Korea. However, there have been few reports concerning the clinical or pathological characteristics of patients in this area. The aim of this study was to examine the characteristics and trends of colorectal cancer in Korea. Methods The 1,468 patients with a histologic diagnoses of colorectal cancer between 1990 and 1997 at the Seoul National University Hospital, Seoul, Korea, were retrospectively examined. The data source was the medical record database of the Hospital. Results The mean age at diagnosis was younger than in Western countries (57.4 years for colon cancer and 55.6 years for rectal cancer). Rectal cancer was found to be more frequent than colon cancer. However, the proportion of colon cancer has been steadily increasing with time. The changes in the colon-to-rectal ratio mainly arose from an increase in left-sided colon cancer. Moderately differentiated adenocarcinoma was also increasing. Colon cancer patients demonstrated a more advanced stage than the rectal cancer patients. Surgery was performed in 93.7% of the patients as a first course of treatment. Conclusions The characteristics of Korean colorectal cancer patients were remarkably different from those seen in Western countries in age and primary tumor site distribution. However, the differences were less evident with time. A nationwide population-based registry is required to confirm the results of the study.

scholarly journals Risk and predictors of suicide in colorectal cancer patients: a Surveillance, Epidemiology, and End Results analysis

2017 ◽  
Vol 24 (6) ◽  
pp. 513 ◽  
Author(s):  
H.H. Samawi ◽  
A.A. Shaheen ◽  
P.A. Tang ◽  
D.Y.C. Heng ◽  
W.Y. Cheung ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Primary Tumour ◽  
Univariate Analysis ◽  
Nonparametric Tests ◽  
Cox Proportional Hazards ◽  
Cancer Group ◽  
Colon And Rectal Cancer ◽  
End Results

Background The risk of suicide is higher for patients with colorectal cancer (crc) than for the general population. Given known differences in morbidity and sites of recurrence, we sought to compare the predictors of suicide for patients with colon cancer and with rectal cancer.Methods Using the U.S. Surveillance, Epidemiology, and End Results database, adult patients with confirmed adenocarcinoma of the colon or rectum during 1973–2009 were identified. Parametric and nonparametric tests were used to assess selected variables, and Cox proportional hazards regression models were used to determine predictors of suicide.Results The database identified 187,996 patients with rectal cancer and 443,368 with colon cancer. Compared with the rectal cancer group, the colon cancer group was older (median age: 70 years vs. 67 years; p < 0.001) and included more women (51% vs. 43%, p < 0.001). Suicide rates were similar in the colon and rectal cancer groups [611 (0.14%) vs. 337 (0.18%), p < 0.001]. On univariate analysis, rectal cancer was a predictor of suicide [hazard ratio (hr): 1.26; 95% confidence interval (ci): 1.10 to 1.43]. However, after adjusting for clinical and pathology factors, rectal cancer was not a predictor of suicide (hr: 1.05; 95% ci: 0.83 to 1.33). In the colon cancer cohort, independent predictors of suicide included older age, male sex, white race, and lack of primary resection. The aforementioned predictors, plus metastatic disease, similarly predicted suicide in the rectal cancer cohort.Conclusions The suicide risk in crc patients is low (<0.2%), and no difference was found based on location of the primary tumour. Sex, age, race, distant spread of disease, and intact primary tumour were the main predictors of suicide among crc patients. Further studies and interventions are needed to target these high-risk groups.

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