Skip Navigation
Skip to contents

Epidemiol Health : Epidemiology and Health

OPEN ACCESS
SEARCH
Search
Advanced Search
mobile menu button

Search

Page Path
HOME > Search
9 "Colorectal cancer"
Filter
Filter
Article category
Keywords
More +
Publication year
More +
Authors
More +
Funded articles
More +
Original Articles
Interactions between vitamin B2, the MTRR rs1801394 and MTR rs1805087 genetic polymorphisms, and colorectal cancer risk in a Korean population
Madhawa Gunathilake, Minji Kim, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
Epidemiol Health. 2024;46:e2024037.   Published online March 11, 2024
DOI: https://doi.org/10.4178/epih.e2024037
  • 2,026 View
  • 106 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
We explored whether the association between vitamin B2 and colorectal cancer (CRC) risk could be modified by the MTRR rs1801394 and MTR rs1805087 genetic polymorphisms and examined whether the interaction effects are sex-specific.
METHODS
We performed a case-control study involving 1,420 CRC patients and 2,840 controls from the Korea National Cancer Center. Dietary vitamin B2 intake was assessed using a semiquantitative food frequency questionnaire, and the association with CRC was evaluated. Genotyping was performed using an Illumina MEGA-Expanded Array. For gene-nutrient interaction analysis, pre-matched (1,081 patients and 2,025 controls) and matched (1,081 patients and 1,081 controls) subsets were included. Unconditional and conditional logistic regression models were used to calculate odds ratios (ORs) and 95% confidence intervals (CIs).
RESULTS
A higher intake of vitamin B2 was associated with a significantly lower CRC risk (OR, 0.65; 95% CI, 0.51 to 0.82; p<0.001). Carriers of at least 1 minor allele of MTRR rs1801394 showed a significantly higher CRC risk (OR, 1.43; 95% CI, 1.12 to 1.83). Males homozygous for the major allele (A) of MTRR rs1801394 and who had a higher intake of vitamin B2 had a significantly lower CRC risk (OR, 0.31; 95% CI, 0.18 to 0.54; p-interaction=0.02). In MTR rs1805087, males homozygous for the major allele (A) and who had a higher vitamin B2 intake had a significantly lower CRC risk (OR, 0.38; 95% CI, 0.25 to 0.60; p-interaction<0.001).
CONCLUSIONS
The MTRR rs1801394 and MTR rs1805087 genetic polymorphisms may modify the association between vitamin B2 and CRC risk, particularly in males. However, further studies are warranted to confirm these interaction results.
Summary
Korean summary
본 연구는 환자-대조군 연구를 통해 비타민 B2 섭취와 대장암 발생의 관련성을 조사하고, 대장암 발생에 있어 methionine synthase (MTRR) rs1801394 및 methionine synthase reductase (MTR) rs1805087의 유전적 다형성과 식이 요인간에 상호작용을 알아보고자 한다. 비타민 B2 의 섭취는 대장암 발생의 위험도를 낮추는 것으로 나타났으며 특히, 남성의 경우 대장암 발생의 위험도가 MTRR rs1801394 및 MTR rs1805087의 유전자형과 식이 섭취에 따른 상호 관련성에 의해 영향을 받는 것으로 나타났다.
Key Message
We conducted a case-control study to observe the association between vitamin B2 intake and the risk of colorectal cancer (CRC), and to determine whether this association could be modified by the methionine synthase (MTRR) rs1801394 and methionine synthase reductase (MTR) rs1805087 genetic polymorphisms. Higher intake of vitamin B2 is a protective factor in lowering CRC risk, and rs1801394 of MTRR and rs1805087 of MTR may particularly modify this association in males.
Interaction between vitamin E intake and a COMT gene variant on colorectal cancer risk among Korean adults: a case-control study
Shinyoung Jun, Madhawa Gunathilake, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
Epidemiol Health. 2023;45:e2023100.   Published online November 14, 2023
DOI: https://doi.org/10.4178/epih.e2023100
  • 3,404 View
  • 124 Download
  • 1 Web of Science
  • 1 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Previous human trials have not supported the anticarcinogenic effect of vitamin E despite biological plausibility and considerable epidemiological evidence. A possible explanation for this inconsistency is the interactive effect of the catechol-O-methyltransferase (COMT) gene and supplemental vitamin E on cancer. We examined whether a COMT gene variant modulates the effect of dietary vitamin E intake on colorectal cancer (CRC) risk.
METHODS
In this case-control study of Korean adults (975 cases and 975 age- and sex-matched controls), dietary vitamin E density (mg/1,000 kcal) was measured using a semiquantitative food frequency questionnaire, COMT single nucleotide polymorphism (SNP) rs740603 (A>G) was genotyped, and CRC was verified histologically. We estimated odds ratios (ORs) and 95% confidence intervals (CIs) using unconditional logistic regression models with adjustments for potential confounders.
RESULTS
Higher vitamin E density was associated with a lower risk of CRC (highest vs. lowest quartiles: OR, 0.72; 95% CI, 0.55 to 0.96; p-for-trend=0.002). When stratified by COMT SNP rs740603 genotype, the inverse association between vitamin E density and CRC risk was confined to those with at least 1 A allele (≥median vs. <median: OR, 0.63; 95% CI, 0.51 to 0.78). The interaction between rs740603 and vitamin E density was significant (p-for-interaction=0.020). No direct association was observed between COMT SNP rs740603 and CRC risk (OR, 1.08; 95% CI, 0.83 to 1.41).
CONCLUSIONS
Our findings support a role for a genetic polymorphism in COMT in modifying the association between dietary vitamin E intake and CRC.
Summary
Korean summary
본 연구는 국립암센터에서 수집한 대장암 환자-대조군 자료를 활용하여, catechol-O-methyltransferase (COMT) 유전자의 단일염기다형성(SNP)에 따라 비타민 E 섭취와 대장암 위험 간의 연관성이 달라지는지 파악하고자 하였다. 분석 결과, COMT SNP rs740603의 유전자형에 따라 식이를 통한 비타민 E 섭취 밀도와 대장암 위험 간의 연관성이 다르게 나타나 COMT 유전자와 비타민 E 섭취 간의 상호작용이 대장암 발생 위험에 영향을 미칠 가능성이 있음을 제시하였다.
Key Message
In this case-control study of Korean adults, we examined whether a polymorphism in the catechol-O-methyltransferase (COMT) gene modulates the effect of dietary vitamin E intake on colorectal cancer risk. Our results suggest that the inverse association between vitamin E density and colorectal cancer risk is confined to carriers of the COMT rs740603 A allele. The findings of our study support the interactive effect of the COMT gene and vitamin E intake on colorectal cancer risk.

Citations

Citations to this article as recorded by  
  • The Role of Dietary Vitamins and Antioxidants in Preventing Colorectal Cancer: A Systematic Review
    Mohammed Ajebli, Christopher R Meretsky, Mourad Akdad, Ayoub Amssayef, Morad Hebi
    Cureus.2024;[Epub]     CrossRef
Socioeconomic inequality in organized and opportunistic screening for colorectal cancer: results from the Korean National Cancer Screening Survey, 2009-2021
Xuan Quy Luu, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kui Son Choi
Epidemiol Health. 2023;45:e2023086.   Published online September 17, 2023
DOI: https://doi.org/10.4178/epih.e2023086
  • 6,421 View
  • 144 Download
  • 1 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
This study aimed to investigate socioeconomic status (SES)-based inequality in colorectal cancer (CRC) screening in Korea. We assessed whether the rates of opportunistic and organized CRC screening differed according to income and education levels.
METHODS
We analyzed data from the Korean National Cancer Screening Survey of 27,654 cancer-free individuals, aged 50-74 years, from 2009 to 2021. The weighted cancer screening rates with trends were estimated with the average annual percentage change using joinpoint regression. Inequality was calculated in both relative and absolute terms, based on a Poisson regression model.
RESULTS
The organized screening rate increased significantly from 22.1% in 2009 to 53.1% in 2020 and 50.6% in 2021, with an average annual change of 8.6% (95% confidence interval [CI], 4.9 to 12.5). In contrast, no significant trend was observed for opportunistic screening. The SES inequality in opportunistic screening uptake was indicated by a slope index of inequality (SII) of 9.74% (95% CI, 6.36 to 13.12), relative index of inequality (RII) of 2.18 (95% CI, 1.75 to 2.70) in terms of education level; and an SII of 7.03% (95% CI, 4.09 to 9.98), RII of 1.81 (95% CI, 1.41 to 2.31) in terms of measured income. Although there was an increasing trend in income inequality, no significant SES inequalities were observed in the overall estimates for organized screening.
CONCLUSIONS
Organized CRC screening is effective in improving the participation rate, regardless of SES. However, significant inequalities were found in opportunistic screening, suggesting room for improvement in the overall equity of CRC screening.
Summary
Korean summary
이번 연구는 한국의 대장암 검진에서 사회경제적 수준에 따른 불평등이 있는지를 분석했다. 국가암검진사업 도입 이래로 2009-2021년 연구기간 동안 공공검진을 통한 대장암 수검률은 지속적으로 증가한 반면, 개인검진의 증가는 관찰되지 않았다. 특히 공공 검진의 경우 소득이나 교육수준에 따른 수검률에 차이는 없는 반면, 개인검진에서는 상당한불평등이 관찰되었다.
Key Message
"The study investigated socioeconomic status (SES)-based inequality in colorectal cancer (CRC) screening in Korea. We found that the introduction of the National Cancer Screening Program for CRC effectively increased the participation rate, regardless of the SES of the individuals throughout the study period. However, significant inequalities were observed in opportunistic screening related to education and income."

Citations

Citations to this article as recorded by  
  • Disparities in Cancer Incidence across Income Levels in South Korea
    Su-Min Jeong, Kyu-Won Jung, Juwon Park, Nayeon Kim, Dong Wook Shin, Mina Suh
    Cancers.2023; 15(24): 5898.     CrossRef
Association of the inflammatory balance of diet and lifestyle with colorectal cancer among Korean adults: a case-control study
Shinyoung Jun, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
Epidemiol Health. 2022;44:e2022084.   Published online September 30, 2022
DOI: https://doi.org/10.4178/epih.e2022084
  • 6,136 View
  • 203 Download
  • 4 Web of Science
  • 4 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
Dietary and lifestyle exposures may affect the risk of colorectal cancer (CRC) by promoting chronic inflammation. Therefore, we assessed the separate and joint associations of dietary and lifestyle inflammation scores (DIS and LIS, respectively) with CRC.
METHODS
Data from 919 pathologically confirmed CRC cases and 1,846 age- and sex-matched controls recruited at the National Cancer Center Korea were analyzed. We calculated the DIS and LIS, which characterize the collective contributions of 19 dietary and 4 lifestyle factors, respectively, to systemic inflammation by applying weights based on high-sensitivity C-reactive protein. A higher score represented a higher balance of pro- to anti-inflammatory exposures. Unconditional logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for CRC risk compared across the DIS and LIS tertile categories, with the lowest tertile as the reference group.
RESULTS
The highest DIS tertile had significantly increased odds of having CRC (OR, 2.65; 95% CI, 2.10 to 3.36), and the odds increased with increasing DIS. The highest LIS tertile group had 1.28-fold higher odds of having CRC (95% CI, 1.03 to 1.58). In the cross-classification analysis, the odds of having CRC increased as the DIS and LIS jointly increased until the DIS reached the highest tertile, where the risk was very high (3-fold or more) regardless of the LIS.
CONCLUSIONS
In conclusion, a higher balance of pro-inflammatory relative to anti-inflammatory dietary and lifestyle factors, especially dietary factors, was associated with higher CRC risk among Korean adults.
Summary
Korean summary
본 연구는 국립암센터에서 수집한 대장암 환자-대조군 데이터를 활용하여, 새롭게 개발된 식이 염증 지수(Dietary Inflammation Score, DIS) 및 생활습관 염증 지수(Lifestyle Inflammation Score, LIS)와 대장암 발생 위험 간의 연관성을 탐색하였다. 분석 결과, 식이 염증 지수 혹은 생활습관 염증 지수가 높은 집단에서 대장암 위험이 더 높아, 식이와 생활습관이 체내 염증 수준을 높여 대장암 발생 위험을 높일 가능성이 제기되었다
Key Message
Dietary inflammation score (DIS) and lifestyle inflammation score (LIS) quantify the collective effect of dietary and lifestyle factors, respectively, on systemic inflammation. In this case-control study, we assessed the associations of DIS and LIS with colorectal cancer risk among Korean adults. Our results suggest that a higher balance of pro-to anti-inflammatory dietary and lifestyle factors may be associated with higher risk for colorectal cancer. The findings from our study support that reducing inflammation through dietary or lifestyle changes could potentially reduce the risk for colorectal cancer.

Citations

Citations to this article as recorded by  
  • The association of diet-dependent acid load with colorectal cancer risk: a case–control study in Korea
    Tao Thi Tran, Madhawa Gunathilake, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
    British Journal of Nutrition.2024; 131(2): 333.     CrossRef
  • Protein nutritional support: The prevention and regulation of colorectal cancer and its mechanism research
    Duo Feng, Di Han, Mengjie Li, Hu Li, Na Li, Tianxin Liu, Jing Wang
    Food Frontiers.2024;[Epub]     CrossRef
  • Gout and Colorectal Cancer Likelihood: Insights from a Nested Case-Control Study of the Korean Population Utilizing the Korean National Health Insurance Service-National Sample Cohort
    Mi Jung Kwon, Kyeong Min Han, Joo-Hee Kim, Ji Hee Kim, Min-Jeong Kim, Nan Young Kim, Hyo Geun Choi, Ho Suk Kang
    Cancers.2023; 15(23): 5602.     CrossRef
  • Dietary intake and cancer incidence in Korean adults: a systematic review and meta-analysis of observational studies
    Ji Hyun Kim, Shinyoung Jun, Jeongseon Kim
    Epidemiology and Health.2023; 45: e2023102.     CrossRef
Application of a non-parametric non-mixture cure rate model for analyzing the survival of patients with colorectal cancer in Iran
Mehdi Azizmohammad Looha, Mohamad Amin Pourhoseingholi, Maryam Nasserinejad, Hadis Najafimehr, Mohammad Reza Zali
Epidemiol Health. 2018;40:e2018045.   Published online September 17, 2018
DOI: https://doi.org/10.4178/epih.e2018045
  • 11,981 View
  • 209 Download
  • 5 Web of Science
  • 3 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
Colorectal cancer (CRC) patients are considered to have been cured when the mortality rate of individuals with the disease returns to the same level as expected in the general population. This study aimed to assess the impact of various risk factors on the cure fraction of CRC patients using a real dataset of Iranian CRC patients with a non-mixture non-parametric cure model.
METHODS
This study was conducted on the medical records of 512 patients who were definitively diagnosed with CRC at Taleghani Hospital, Tehran, Iran from 2001 to 2007. A non-mixture non-parametric cure rate model was applied to the data after using stepwise selection to identify the risk factors of CRC.
RESULTS
For non-cured cases, the mean survival time was 1,243.83 days (95% confidence interval [CI], 1,174.65 to 1,313.00) and the median survival time was 1,493.00 days (95% CI, 1,398.67 to 1,587.33). The 1- and 3-year survival rates were 92.9% (95% CI, 91.0 to 95.0) and 73.4% (95% CI, 68.0 to 79.0), respectively. Pathologic stage T1 of the primary tumor (estimate=0.58; p=0.013), a poorly differentiated tumor (estimate=1.17; p<0.001), a body mass index (BMI) between 18.6 and 24.9 kg/m2 (estimate=−0.60; p=0.04), and a BMI between 25.0 and 29.9 kg/m2 (estimate=−1.43; p<0.001) had significant impacts on the cure fraction of CRC in the multivariate analysis. The proportion of cured patients was 64.1% (95% CI, 56.7 to 72.4).
CONCLUSIONS
This study found that the pathologic stage of the primary tumor, tumor grade, and BMI were potential risk factors that had an impact on the cure fraction. A non-mixture non-parametric cure rate model provides a flexible framework for accurately determining the impact of risk factors on the long-term survival of patients with CRC.
Summary

Citations

Citations to this article as recorded by  
  • Post‐diagnosis adiposity and colorectal cancer prognosis: A Global Cancer Update Programme (CUP Global) systematic literature review and meta‐analysis
    Nerea Becerra‐Tomás, Georgios Markozannes, Margarita Cariolou, Katia Balducci, Rita Vieira, Sonia Kiss, Dagfinn Aune, Darren C. Greenwood, Laure Dossus, Ellen Copson, Andrew G. Renehan, Martijn Bours, Wendy Demark‐Wahnefried, Melissa M. Hudson, Anne M. Ma
    International Journal of Cancer.2024; 155(3): 400.     CrossRef
  • Assessment of prognostic factors in long-term survival of male and female patients with colorectal cancer using non-mixture cure model based on the Weibull distribution
    Mehdi Azizmohammad Looha, Elaheh Zarean, Fatemeh Masaebi, Mohamad Amin Pourhoseingholi, Mohamad Reza Zali
    Surgical Oncology.2021; 38: 101562.     CrossRef
  • Actual survival after resection of primary colorectal cancer: results from a prospective multicenter study
    Inge van den Berg, Robert R. J. Coebergh van den Braak, Jeroen L. A. van Vugt, Jan N. M. Ijzermans, Stefan Buettner
    World Journal of Surgical Oncology.2021;[Epub]     CrossRef
Impaired fasting glucose, single-nucleotide polymorphisms, and risk for colorectal cancer in Koreans
Keum Ji Jung, Miyong To Kim, Sun Ha Jee
Epidemiol Health. 2016;38:e2016002.   Published online January 6, 2016
DOI: https://doi.org/10.4178/epih.e2016002
  • 17,620 View
  • 152 Download
  • 10 Web of Science
  • 9 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
Numerous studies have demonstrated that fasting serum glucose (FSG) levels and certain single-nucleotide polymorphisms (SNPs) are related to an increased risk of colorectal cancer (CRC); however, their combined effects are still unclear.
METHODS
Of a total of 144,527 men and women free of cancer at baseline, 317 developed CRC during 5.3 years of follow-up. A case-cohort study (n=1,691) was used, consisting of participants with a DNA sample available. Three well-known SNPs (rs3802842, rs6983267, rs10795668) were genotyped. Hazard ratios (HR) and 95% confidence intervals (CI) of CRC, colon and rectal cancer were calculated, with the Cox proportional hazard models.
RESULTS
The crude incidence rates per 100,000 person-years were 41.1 overall, 48.4 for men, and 29.3 for women. Among participants with dysglycemia, SNPs rs3802842 and rs6983267 were both associated with an increased risk of CRC (HR, 3.2; 95% CI, 1.9 to 5.5 and HR, 1.8; 95% CI, 1.1 to 3.1, respectively) and rectal cancer (HR, 3.4; 95% CI, 1.8 to 6.6 and HR, 3.3; 95% CI, 1.6 to 7.1, respectively). The interaction effect of dysglycemia and SNPs was positive, that is, resulted in an elevated risk of CRC, but was not statistically significant.
CONCLUSIONS
This study demonstrates that both high FSG and certain SNPs are major risk factors for CRC and rectal cancer but that they did not interact synergistically. The difference in effect size of the SNPs according to CRC subtype (i.e., colon or rectal cancer) and presence of dysglycemia merits further research.
Summary
Korean summary
본 연구에서는 공복혈당농도와 대장암과 관련된 단일염기다형성(SNP)과의 관련성을 살펴 보았다. 높은 공복혈당농도와 단일염기다형성(SNP_rs3802842, rs6983267)은 대장암의 주요한 위험요인이었으나, 두 가지 요인의 상호작용으로 인한 시너지 효과는 없는 것으로 나타났다. 대장암의 아형에 따른 다른 효과 크기와 이상혈당증 유무에 따른 향후 연구가 더 필요할 것으로 생각된다.

Citations

Citations to this article as recorded by  
  • Glycemic traits and colorectal cancer survival in a cohort of South Korean patients: A Mendelian randomization analysis
    So Yon Jun, Sooyoung Cho, Min Jung Kim, Ji Won Park, Seung‐Bum Ryoo, Seung Yong Jeong, Kyu Joo Park, Aesun Shin
    Cancer Medicine.2024;[Epub]     CrossRef
  • Relationship Between Aspirin Use and Site-Specific Colorectal Cancer Risk Among Individuals With Metabolic Comorbidity
    Seokyung An, Madhawa Gunathilake, Jeonghee Lee, Minji Kim, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
    Journal of Korean Medical Science.2024;[Epub]     CrossRef
  • The effect of pain-education nursing based on a mind map on postoperative pain score and quality of life in patients with colorectal cancer
    Shan Li, Xiaohong Zhu, Lihua Zhang, Cui Huang, Dan Li
    Medicine.2023; 102(19): e33562.     CrossRef
  • The lncRNA CCAT2 Rs6983267 G Variant Contributes to Increased Sepsis Susceptibility in a Southern Chinese Population
    Zhiyuan Wu, Yufeng Liang, Yunlong Zuo, Yufen Xu, Hanran Mai, Lei Pi, Di Che, Xiaoqiong Gu
    Infection and Drug Resistance.2021; Volume 14: 2969.     CrossRef
  • Distinct Patterns of Interleukin-12/23 and Tumor Necrosis Factor α Synthesis by Activated Macrophages are Modulated by Glucose and Colon Cancer Metabolites
    Ching-Ying Huang, Linda Chia-Hui Yu
    Chinese Journal of Physiology.2020; 63(1): 7.     CrossRef
  • Glucose Metabolites Exert Opposing Roles in Tumor Chemoresistance
    Chung-Yen Huang, Ching-Ying Huang, Yu-Chen Pai, Been-Ren Lin, Tsung-Chun Lee, Pi-Hui Liang, Linda Chia-Hui Yu
    Frontiers in Oncology.2019;[Epub]     CrossRef
  • Association among genetic variants in the vitamin D pathway and circulating 25-hydroxyvitamin D levels in Korean adults: results from the Korea National Health and Nutrition Examination Survey 2011–2012
    So-Young Kwak, Clara Yongjoo Park, Garam Jo, Oh Yoen Kim, Min-Jeong Shin
    Endocrine Journal.2018; 65(9): 881.     CrossRef
  • Body mass index and incidence of thyroid cancer in Korea: the Korean Cancer Prevention Study-II
    Hyun-Young Shin, Yong Ho Jee, Eo Rin Cho
    Journal of Cancer Research and Clinical Oncology.2017; 143(1): 143.     CrossRef
  • Heart Rate Recovery and Cancer Risk: Prospective Cohort Study
    Yong Hyun Byun, Sang Yeun Kim, Yejin Mok, Youngwon Kim, Sun Ha Jee
    Asia Pacific Journal of Public Health.2017; : 101053951774563.     CrossRef
Predictors of Colorectal Cancer Survival in Golestan, Iran: A Population-based Study
Mohammad Aryaie, Gholamreza Roshandel, Shahryar Semnani, Mohsen Asadi-Lari, Mohsen Aarabi, Mohammad Ali Vakili, Vahideh Kazemnejhad, Seyed Mehdi Sedaghat, Masoud Solaymani-Dodaran
Epidemiol Health. 2013;35:e2013004.   Published online June 20, 2013
DOI: https://doi.org/10.4178/epih/e2013004
  • 17,530 View
  • 131 Download
  • 15 Crossref
AbstractAbstract PDF
Abstract
<sec><title>OBJECTIVES</title><p>We aimed to investigate factors associated with colorectal cancer survival in Golestan, Iran.</p></sec><sec><title>METHODS</title><p>We used a population based cancer registry to recruit study subjects. All patients registered since 2004 were contacted and data were collected using structured questionnaires and trained interviewers. All the existing evidences to determine the stage of the cancer were also collected. The time from first diagnosis to death was compared in patients according to their stage of cancer using the Kaplan-Meir method. A Cox proportional hazard model was built to examine their survival experience by taking into account other covariates.</p></sec><sec><title>RESULTS</title><p>Out of a total of 345 subjects, 227 were traced. Median age of the subjects was 54 and more than 42% were under 50 years old. We found 132 deaths among these patients, 5 of which were non-colorectal related deaths. The median survival time for the entire cohort was 3.56 years. A borderline significant difference in survival experience was detected for ethnicity (log rank test, p=0.053). Using Cox proportional hazard modeling, only cancer stage remained significantly associated with time of death in the final model.</p></sec><sec><title>CONCLUSIONS</title><p>Colorectal cancer occurs at a younger age among people living in Golestan province. A very young age at presentation and what appears to be a high proportion of patients presenting with late stage in this area suggest this population might benefit substantially from early diagnoses by introducing age adapted screening programs.</p></sec>
Summary

Citations

Citations to this article as recorded by  
  • Prognostic Factors of Rectal Cancer in Southern Iran
    Seyed Vahid Hosseini, Abbas Rezaianzadeh, Salar Rahimikazerooni, Alimohammad Bananzadeh, Afrouz Farghadin, Mohammad Zare Band Amiry, Ahmad Izadpanah, Mohammad Mohammadianpanah, Sohrab Iranpour
    Journal of Gastrointestinal Cancer.2022; 53(1): 113.     CrossRef
  • Colorectal cancer incidence and mortality trends by sex and population group in South Africa: 2002–2014
    Lactatia Motsuku, Wenlong Carl Chen, Mazvita Molleen Muchengeti, Megan Naidoo, Tamlyn Mac Quene, Patricia Kellett, Matshediso Ivy Mohlala, Kathryn M. Chu, Elvira Singh
    BMC Cancer.2021;[Epub]     CrossRef
  • Detection Rate of Colorectal Polyps in Symptomatic Candidates of Colonoscopy: When Should We Do a Total Colonoscopy?
    Alireza Norouzi, Sima Besharat, Fazel Isapanah Amlashi, Maryam Nasrabadi, Isan Gharanjik, Ali Ashkbari, Zoha Riahi, Sajjad Kaabe, Iman Shahabi Nasab, Gholamreza Roshandel, Ahmad Sohrabi, Taghi Amiriani, Shahryar Semnani
    Middle East Journal of Digestive Diseases.2021; 13(4): 314.     CrossRef
  • Associated Factors of Survival Rate and Screening for Colorectal Cancer in Iran: a Systematic Review
    Hossein Mozafar Saadati, Farzad Khodamoradi, Hamid Salehiniya
    Journal of Gastrointestinal Cancer.2020; 51(2): 401.     CrossRef
  • Survival Status and Predictors of Mortality Among Colorectal Cancer Patients in Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia: A Retrospective Follow-up Study
    Bantalem Tilaye Atinafu, Fekadu Aga Bulti, Tefera Mulugeta Demelew
    Journal of Cancer Prevention.2020; 25(1): 38.     CrossRef
  • Survival Rate of Colorectal Cancer in Eastern Mediterranean Region Countries: A Systematic Review and Meta-Analysis
    Hossein-Ali Nikbakht, Soheil Hassanipour, Layla Shojaie, Mohebat Vali, Saber Ghaffari-fam, Mousa Ghelichi-ghojogh, Zahra Maleki, Morteza Arab-Zozani, Elham Abdzadeh, Hamed Delam, Hamid Salehiniya, Maryam Shafiee, Salman Mohammadi
    Cancer Control.2020; 27(1): 107327482096414.     CrossRef
  • Temporal and geographical variations in colorectal cancer incidence in Northern Iran 2004–2013
    Susan Hasanpour-Heidari, Abdolreza Fazel, Shahryar Semnani, Seyyed-Reza Khandoozi, Taghi Amiriani, SeyedMehdi Sedaghat, Reza Hosseinpoor, Ramin Azarhoush, Mohammad Poorabbasi, Mohammad Naeimi-Tabiei, Gholamreza Roshandel, Freddie Bray, Elisabete Weiderpas
    Cancer Epidemiology.2019; 59: 143.     CrossRef
  • Clinicopathological features and survival of colorectal cancer patients younger than 50 years: a retrospective comparative study
    Robabeh Ghodssi-Ghassemabadi, Ebrahim Hajizadeh, Shaghayegh Kamian, Mahmood Mahmoudi
    Journal of the Egyptian National Cancer Institute.2019;[Epub]     CrossRef
  • Building cancer registries in a lower resource setting: The 10-year experience of Golestan, Northern Iran
    Gholamreza Roshandel, Shahryar Semnani, Abdolreza Fazel, Mohammadreza Honarvar, MohammadHossein Taziki, SeyedMehdi Sedaghat, Nafiseh Abdolahi, Mohammad Ashaari, Mohammad Poorabbasi, Susan Hasanpour, SeyedAhmad Hosseini, SeyedMohsen Mansuri, Ataollah Jahan
    Cancer Epidemiology.2018; 52: 128.     CrossRef
  • Preferences for Colorectal Cancer Screening Tests: Differences Between Insured and Uninsured Beneficiaries of Iranian Health Transformation Plan
    Vajiheh Ramezani Doroh, Alireza Delavari, Mehdi Yaseri, Sara Emamgholipour Sefiddashti, Ali Akbari Sari
    Health Scope.2018;[Epub]     CrossRef
  • Prognostic factors and survival of colorectal cancer in Kurdistan province, Iran
    Mohammad Aziz Rasouli, Ghobad Moradi, Daem Roshani, Bahram Nikkhoo, Ebrahim Ghaderi, Bahman Ghaytasi
    Medicine.2017; 96(6): e5941.     CrossRef
  • Colorectal Cancer in Iran: Molecular Epidemiology and Screening Strategies
    Roya Dolatkhah, Mohammad Hossein Somi, Mortaza Jabbarpour Bonyadi, Iraj Asvadi Kermani, Faris Farassati, Saeed Dastgiri
    Journal of Cancer Epidemiology.2015; 2015: 1.     CrossRef
  • Recurrence and Five Year Survival in Colorectal Cancer Patients After Surgery
    Seyed Reza Fatemi, Mohamad Amin Pourhoseingholi, Farshad Asadi, Mohsen Vahedi, Sara Pasha, Leila Alizadeh, Mohammad Reza Zali
    Iranian Journal of Cancer Prevention.2015;[Epub]     CrossRef
  • An Overview of Clinical and Pathological Characteristics and Survival Rate of Colorectal Cancer in Iran
    Sareh Hoseini, Leila Moaddabshoar, Simin Hemati, Mohammad Mohammadianpanah
    Annals of Colorectal Research.2014;[Epub]     CrossRef
  • Overview of Cancer Registration Research in the Asian Pacific from 2008-2013
    Malcolm A. Moore
    Asian Pacific Journal of Cancer Prevention.2013; 14(8): 4461.     CrossRef
Analysis of Studies on Colorectal Cancers Published in Korean Medical Journals Between 1967 and 2004.
Eunkyoung Paik, Soonduck Kim, Jesuk Lee
Korean J Epidemiol. 2007;29(2):146-154.
  • 65,535 View
  • 19 Download
AbstractAbstract PDF
Abstract
PURPOSE
The study analyzed and categorized the colorectal cancers related medical journals published in Korea by the name of the journal, research materials, study method, statistical method and by content of study for the quality improvement of colorectal cancers related studies.
METHODS
The authors reviewed a total of 567 colorectal cancer-related studies published in the Korean medical journals during the period 1967 and 2004 and kept in the National Assembly Library. The distribution of research materials, study method, statistical method and content of these studies were analyzed by the 5 year publication interval.
RESULTS
By study period, the number of published studies steeply increase during the period between 2000 and 2004. As the research materials, hospital patients(64.6%) and In-vitro(16.6%) were the most prevalently used research materials, but health adults were the lowest research materials by only taking up 0.4%. In study methods, patient follow up studies(28.7%) and human in vitro experimental(27.9%) were prevalent, and human in vitro experimental were relatively the most popular performed studies during the years of 1990-1994. As the statistical method, life table and survival analysis(27.0%) were the mostly performed methods, and the use of statistical method was applied in nearly all studies. The contents of the studies mainly focused on the patient prognostic estimations(27.6%) of therapeutic safety & efficacy(25.6%), but only the 4.1% of risk factors studies. Among the 109 studies which analyzed the survival term 78.9% of the studies mainly used the 5 year term in the analysis of survival rates.
CONCLUSION
The results of the study could be utilized as the basic data for the quality improvement of further colorectal cancers related studies.
Summary
Mortality Trends in Colorectal Cancer and Breast Cancer in Korea: Birth Cohort Effects?.
Jae Kwan Jun, Yeon Ju Kim, Jin Gwack, Yunhee Choi, Yun Chul Hong, Keun Young Yoo
Korean J Epidemiol. 2005;27(1):154-162.
  • 65,535 View
  • 39 Download
AbstractAbstract PDF
Abstract
PURPOSE
Cancer has been the leading cause of deaths since 1980s in Korea. Among them, colorectal cancer and breast cancer shows steadily increasing pattern, being the fourth and the fifth common site of cancer death in Korea, respectively. This analysis aimed to evaluate potential contribution of birth cohort effects to the recent increases in mortality of colorectal cancer and breast cancer since 1983 in Korea.
METHODS
Mortality statistics on deaths of both cancers for the past 20 years of 1983~2002 were obtained from the National Statistical Office. The age-standardized mortality rates were calculated based on the census population of 1992 as a standard.
RESULTS
Age-standardized mortality rate for colorectal cancer increased 4.7-fold in men and 3.6-fold in women, whereas 2.1-fold increase in breast cancer mortality during 1983~2002. Age-specific mortality rates for colorectal cancer were steadily increasing by age before 1991 in both genders. However, the mortality rates showed an exponentially increasing pattern for the age group of 70 and over during 1993~2001, which was more prominent in female. The birth cohort curves showed that there were 2- to 3-fold increases in the mortality rates of people who were born in 1931 for colorectal cancer compared to those of people who were born in 1921. Differences in mortality for breast cancer by birth cohort were 1.7-fold among age group of 45~49 and 50~54 between 1936 and 1946.
CONCLUSIONS
This analysis suggests that recent increases in mortality of colorectal cancer and breast cancer could potentially be due to birth cohort effects, i.e. rapid changes in life-style in younger generation. The quantitative approach using age-period-cohort model should be pursued.
Summary
Epidemiol Health : Epidemiology and Health
© Korean Society of Epidemiology.
TOP