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.

Bevacizumab effectiveness and primary tumor location in metastatic colorectal cancer patients.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 683-683 ◽  
Author(s):  
Wen-zhuo He ◽  
Qiong Yang ◽  
Chang Jiang ◽  
Fang-xin Liao ◽  
Shou-sheng Liu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Metastatic Colorectal Cancer ◽  
Cancer Patients ◽  
Primary Tumor ◽  
Tumor Location ◽  
First Line ◽  
Primary Tumor Location ◽  
Colon Cancers

683 Background: There is currently no consensus about whether bevacizumab effectiveness is associated with the primary tumor location of metastatic colorectal cancer (mCRC). The aim of this study was to assess whether the primary tumor location was a predictor for bevacizumab treatment. Methods: From 2004 to 2013, 740 patients with mCRC treated with oxaliplatin / 5-FU / leucovorin (mFOLFOX6) or irinotecan / 5-FU / leucovorin (FOLFIRI) (CT group) and 244 patients treated with bevacizumab plus mFOLFOX6 or FOLFIRI (CT + B group) as first-line setting were included from Sun yat-sen university cancer center. Right-side colon cancers included those occurring in the cecum, ascending colon or transverse colon. Left-side colon cancers included those from descending or sigmoid colon. The primary outcome was overall survival (OS). Kaplan-Meier curves with log-rank tests were used to detect difference. All statistical tests were two sided. Results: 222 right-side colon, 259 left-side colon and 259 rectal cancer patients were included in CT group while 78 right-side colon, 86 left-side colon and 80 rectal cancer patients were included in CT + B group. Patients in CT + B group had similar OS compare with CT group only when the primary tumor located at right-side colon (median OS was 19.6 months for CT + B group versus 19.5 months for CT group, P = 0.269). For left-side colon cancer, significantly longer OS were observed in CT + B than CT group (22.3 months versus 21.9 months, P = 0.014). For rectal cancer patients, those in CT + B group also had longer OS than CT group (25.9 months versus 21.1 months, P = 0.005). Conclusions: Our data suggested that patients with right-side colon cancer could not get survival benefit from the addition of bevacizumab to first-line chemotherapy. Further data from randomized trials are needed to test our hypothesis. [Table: see text]

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.

scholarly journals Clinicopathological Factors Influencing Lymph Node Yield in Colorectal Cancer: A Retrospective Study

2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Elena Orsenigo ◽  
Giulia Gasparini ◽  
Michele Carlucci
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Lymph Node ◽  
Lymph Nodes ◽  
Cancer Patients ◽  
Rank Test ◽  
Lymph Node Yield ◽  
Log Rank Test ◽  
Lymph Node Retrieval

Many colorectal resections do not meet the minimum of 12 lymph nodes (LNs) recommended by the American Joint Committee on Cancer for accurate staging of colorectal cancer. The aim of this study was to investigate factors affecting the number of the adequate nodal yield in colorectal specimens subject to routine pathological assessment. We have retrospectively analysed the data of 2319 curatively resected colorectal cancer patients in San Raffaele Scientific Institute, Milan, between 1993 and 2017 (1259 colon cancer patients and 675 rectal cancer patients plus 385 rectal cancer patients who underwent neoadjuvant therapy). The factors influencing lymph node retrieval were subjected to uni- and multivariate analyses. Moreover, a survival analysis was carried out to verify the prognostic implications of nodal counts. The mean number of evaluated nodes was 24.08±11.4, 20.34±11.8, and 15.33±9.64 in surgically treated right-sided colon cancer, left-sided colon cancer, and rectal tumors, respectively. More than 12 lymph nodes were reported in surgical specimens in 1094 (86.9%) cases in the colon cohort and in 425 (63%) cases in the rectal cohort, and patients who underwent neoadjuvant chemoradiation were analysed separately. On univariate analysis of the colon cancer group, higher LNs counts were associated with female sex, right colon cancer, emergency surgery, pT3-T4 diseases, higher tumor size, and resected specimen length. On multivariate analysis right colon tumors, larger mean size of tumor, length of specimen, pT3-T4 disease, and female sex were found to significantly affect lymph node retrieval. Colon cancer patients with 12 or more lymph nodes removed had a significantly better long-term survival than those with 11 or fewer nodes (P=0.002, log-rank test). Rectal cancer patients with 12 or more lymph nodes removed approached but did not reach a statistically different survival (P=0.055, log-rank test). Multiple tumor and patients’ factors are associated with lymph node yield, but only the removal of at least 12 lymph nodes will reliably determine lymph node status.

scholarly journals Serum Lipids and the Risk of Gastrointestinal Malignancies in the Swedish AMORIS Study

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Wahyu Wulaningsih ◽  
Hans Garmo ◽  
Lars Holmberg ◽  
Niklas Hammar ◽  
Ingmar Jungner ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Colon Cancer ◽  
Cancer Risk ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Gastrointestinal Malignancies ◽  
Colon Cancer Risk ◽  
Colon And Rectal Cancer ◽  
Increased Risk ◽  
Lipid Components

Background. Metabolic syndrome has been linked to an increased cancer risk, but the role of dyslipidaemia in gastrointestinal malignancies is unclear. We aimed to assess the risk of oesophageal, stomach, colon, and rectal cancers using serum levels of lipid components.Methods. From the Swedish Apolipoprotein Mortality Risk (AMORIS) study, we selected 540,309 participants (> 20 years old) with baseline measurements of total cholesterol (TC), triglycerides (TG), and glucose of whom 84,774 had baseline LDL cholesterol (LDL), HDL cholesterol (HDL), apolipoprotein B (apoB), and apolipoprotein A-I (apoA-I). Multivariate Cox proportional hazards regression was used to assess glucose and lipid components in relation to oesophageal, stomach, colon, and rectal cancer risk.Results. An increased risk of oesophageal cancer was observed in persons with high TG (e.g. HR: 2.29 (95% CI: 1.42–3.68) for the 4th quartile compared to the 1st) and low LDL, LDL/HDL ratio, TC/HDL ratio, log (TG/HDL), and apoB/apoA-I ratio. High glucose and TG were linked with an increased colon cancer risk, while high TC levels were associated with an increased rectal cancer risk.Conclusion. The persistent link between TC and rectal cancer risk as well as between TG and oesophageal and colon cancer risk in normoglycaemic individuals may imply their substantiality in gastrointestinal carcinogenesis.

Impact of diabetes on site-specific oncologic outcome in stage I-III colorectal cancer.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14114-e14114
Author(s):  
Justin Y Jeon ◽  
Deok Hyun Jeong ◽  
Min Keun Park ◽  
Jennifer A. Ligibel ◽  
Jeffrey A. Meyerhardt ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Cancer Patients ◽  
Proximal Colon ◽  
Survival Outcome ◽  
Recurrence Free Survival ◽  
Site Specific ◽  
Free Survival ◽  
All Cause Mortality

e14114 Background: Background: Conflicting results have been reported whether pre diagnosis diabetes mellitus (DM) influence survival of colorectal cancer patients or not. Therefore, we determine the influence of DM on long-term outcomes of stage 1-3 patients with resected colon and rectal cancer. Methods: This prospective study include a total of 4,131 participants who were treated for cancer between 1995 and 2005 in South Korea in a single hospital (Non DM: 3,614 patients, DM: 517 patients) with average follow up period of 12 years. We analyzed differences in all cause mortality, disease free survival (DFS), recurrence free survival (RFS) and colorectal cancer-specific mortality between colorectal patients with DM and those without DM. Results: After adjustment for potential confounders, pre-diagnosis DM significantly associated with increased all cause mortality (HR: 1.46, 95% CI: 1.11-1.92), and recurrence free survival reduced DFS (HR: 1.45, 95%CI: 1.15-1.84) and RFS (HR: 1.32, 95% CI: 0.98-1.76) in colon cancer patients but not in rectal cancer patients. In colon cancer patients, DM negatively affects the survival outcome of proximal colon cancer (HR: 2.08, 95%CI: 1.38-3.13), but not of distal cancer (HR:1.34, 95% CI: 0.92-1.96). Conclusions: To our knowledge, the current study first reported the effects of pre-diagnosis DM on survival outcome of colorectal cancer are site specific (proximal colon, distal colon and rectum). The current study was supported by the National Research Foundation of Korea (KRF) (No. 2011-0004892) and the National R&D Program for Cancer Control, Ministry of Health & Welfare, Republic of Korea (1120230). [Table: see text]

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.

Clinical lymph node staging by imaging in colorectal cancer: A flip of the coin?

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e15160-e15160 ◽  
Author(s):  
Nelleke Pietronella Maria Brouwer ◽  
Rutger Carel Hubert Stijns ◽  
Lemmens Valery ◽  
Iris D. Nagtegaal ◽  
Regina GH Beets-Tan ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Lymph Node ◽  
Lymph Nodes ◽  
Neoadjuvant Therapy ◽  
Cancer Patients ◽  
Lymph Node Staging ◽  
Preoperative Treatment ◽  
Positive Lymph Nodes

e15160 Background: Clinical lymph node staging by MRI and CT is important in stratification for neoadjuvant therapy in colorectal cancer. Overstaging may result in unnecessary neoadjuvant therapy, but understaging may refrain patients from adequate preoperative treatment. This study aims to provide insight in current daily practice in clinical lymph node staging in CRC in the Netherlands. Methods: All patients with primary CRC, diagnosed between 2003-2014, who underwent lymph node dissection were selected from the nationwide population-based Netherlands Cancer Registry (n=100,211). Trends in patient- and tumor-characteristics, and lymph node staging were analyzed. For the years 2011-2014, sensitivity, specificity, positive (PPV) and negative predictive value (NPV) were calculated for clinical lymph node staging, with histology as the gold standard. Only patients without preoperative treatment were analyzed. Since prospective studies have shown that 5x5 Gy radiotherapy (RT) followed by total mesorectal excision within 10 days does not lead to nodal downstaging, an additional analysis was performed in this group. Results: The proportion clinically positive lymph nodes increased significantly between 2003-2014; from 7% to 22% for colon cancer and from 7% to 53% for rectal cancer. The proportion histological positive lymph nodes remained fairly stable over time (±35% colon, ±33% rectum). During 2011-2014, clinical lymph node staging was available in the registry in 86% of colon cancer patients, 92% of rectal cancer patients without neoadjuvant treatment and 95% of rectal cancer patients with 5x5 Gy RT. The parameters based on data from this period are presented in table 1. Conclusions: With a sensitivity and PPV of approximately 50%, clinical lymph node staging is about as accurate as flipping a coin. This leads to overtreatment in patients with rectal cancer with neoadjuvant RT. Acceptable specificity and NPV limit the risk of undertreatment. [Table: see text]

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]

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.

scholarly journals Colorectal Cancer Anatomical Site and Sleep Quality

Cancers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2578
Author(s):  
Mimi Ton ◽  
Nathaniel F. Watson ◽  
Arthur Sillah ◽  
Rachel C. Malen ◽  
Julia D. Labadie ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Rectal Cancer ◽  
Colon Cancer ◽  
Sleep Quality ◽  
Cancer Patients ◽  
Personal Characteristics ◽  
Anatomical Site ◽  
Survivorship Care ◽  
Anatomic Site ◽  
Sleeping Problems

Purpose: Sleep quality in relation to anatomic site among colorectal cancer (CRC) patients is not well understood, though discerning the relationship could contribute to improved survivorship care. Methods: We ascertained sleep quality (Pittsburgh Sleep Quality Index) and other personal characteristics within an ongoing population-based study of CRC patients identified through a cancer registry (N = 1453). Differences in sleep quality by CRC site were analyzed using chi-square and ANOVA tests. We used logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the association of tumor site with sleep quality concerns, adjusting for patient attributes and time since diagnosis. Results: Sleeping problems were reported by 70% of CRC patients. Overall, participants with rectal (vs. colon) cancer were more likely (OR (95% CI)) to report general trouble sleeping (1.58 (1.19, 2.10)). Rectal cancer patients were also more likely than colon cancer patients to report changes in sleep patterns after cancer diagnosis (1.38 (1.05, 1.80)), and trouble sleeping specifically due to getting up to use the bathroom (1.53 (1.20, 1.96)) or pain (1.58 (1.15, 2.17)), but were less likely to report trouble sleeping specifically due to issues with breathing/coughing/snoring (0.51 (0.27, 0.99)). Conclusion: Overall, rectal cancer patients were more likely to have sleep complications compared to colon cancer patients. This suggests sleep-focused survivorship care may be adapted according to CRC site to ensure patients receive appropriate support.

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