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Zhang M, Zhang Y, Guo L, Zhao L, Jing H, Yang X, Zhang W, Zhang Y, Nie Z, Zhu S, Zhang S, Zhang X. Trends in colorectal cancer screening compliance and incidence among 60- to 74-year-olds in China. Cancer Med 2024; 13:e7133. [PMID: 38634216 PMCID: PMC11024507 DOI: 10.1002/cam4.7133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 10/26/2023] [Accepted: 03/09/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Compliance with colonoscopy among elderly individuals participating in colorectal cancer (CRC) screening programs is unsatisfactory, despite a high detection rate of bowel-related diseases. In this study, our aim was to analyze the impact of risk factors on the trends of compliance and detection rates in colonoscopy among high-risk individuals aged 60-74. METHODS A retrospective study was conducted on the high-risk individuals aged 60-74 participating in the 2021 CRC screening program in Tianjin, China. Logistic regression analyses, including both univariate and multivariate analyses, were performed to explore the impact of different risk factors on colonoscopy compliance among the high-risk individuals. Besides, the study investigated the influence of various risk factors on the detection rates of bowel-related diseases among the high-risk individuals who underwent colonoscopy. RESULTS A total of 24,064 high-risk individuals were included, and 5478 individuals received a free colonoscopy, with an overall compliance of 22.76%. Among them, the adenoma detection rate was 55.46%. Males and individuals with a positive FIT had high compliance and detection rates for CRC, advanced adenomas (AA), advanced colorectal neoplasia (ACN), and colorectal neoplasm (CN). Individuals aged 70-74 were associated with low compliance but high CRC, ACN, and CN detection rates. Individuals who reported a history of chronic constipation, bloody mucous, and CRC in first-degree relative showed high compliance but no significantwere associated with the detection rates of CRC, AA, and CN. CONCLUSION This study reported several risk factors associated with the screening behaviors for CRC. Patterns and trends in CRC, AA, ACN, and CN compliance and detection rates correlate with risk factors.
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Affiliation(s)
- Mingqing Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Nankai University School of Medicine, Nankai University, Tianjin, China
- Tianjin Institute of Coloproctology, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Yongdan Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Tianjin Institute of Coloproctology, Tianjin, China
| | - Lu Guo
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Lizhong Zhao
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Tianjin Institute of Coloproctology, Tianjin, China
| | - Haoren Jing
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Tianjin Institute of Coloproctology, Tianjin, China
| | - Xiao Yang
- Nankai University School of Medicine, Nankai University, Tianjin, China
- Endoscopy Center, Tianjin Union Medical Center, Tianjin, China
| | - Wen Zhang
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Yong Zhang
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Zhenguo Nie
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Nankai University School of Medicine, Nankai University, Tianjin, China
| | - Siwei Zhu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Nankai University School of Medicine, Nankai University, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Shiwu Zhang
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
- Department of Pathology, Tianjin Union Medical Center, Tianjin, China
| | - Xipeng Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Tianjin Institute of Coloproctology, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
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2
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Zhang G, Wang Y, Zhao L, Zhang M, Zhang W, Zhang W, Zhang S, Zhang H, Wang D, Wang Y, Xie L, Qian B, Zhang X. Fecal Immunochemical Testing and the Risk of Advanced Colorectal Neoplasia: A Difference-In-Difference Analysis. JCO Glob Oncol 2024; 10:e2300188. [PMID: 38271647 PMCID: PMC10830093 DOI: 10.1200/go.23.00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/20/2023] [Accepted: 11/06/2023] [Indexed: 01/27/2024] Open
Abstract
PURPOSE To evaluate the effectiveness of fecal immunochemical testing (FIT) in colorectal cancer screening. METHODS We conducted a prospective cohort study among 5,598 participants age 40-74 years between 2012 and 2020 in Tianjin, China. Inverse probability weighting was adopted to adjust for potential imbalanced factors between groups. A Cox proportional hazards model was used to estimate the weighted associations between FIT screening and advanced colorectal neoplasia. A difference-in-difference (DID) model was adopted to compare the incidence rates of advanced colorectal neoplasia between groups. RESULTS In DID analysis, the rate of incidence was reduced by 0.34 cases per person-years in the screening group as compared with the historical FIT screening group (rate ratio [RR], 0.08 [95% CI, 0.07 to 0.10]) and by 0.06 cases per person-years in the non-FIT screening group as compared with the historical non-FIT screening group (RR, 0.37 [95% CI, 0.29 to 0.48]; P < .001 for both comparisons), with a relative reduction of 0.28. Similar benefit effect from FIT screening was observed in sex and age subgroups. CONCLUSION FIT screening was associated with a reduction in incidence density from advanced colorectal neoplasia.
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Affiliation(s)
- Guanglu Zhang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiying Wang
- Department of Preventive and Health Care, Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Lizhong Zhao
- Department of Colorectal Surgery, Tianjin Union Medical Center, Nankai University, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Mingqing Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Nankai University, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Weihua Zhang
- Department of Colorectal Surgery, Tianjin Hospital, Tianjin, China
| | - Weituo Zhang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shiwu Zhang
- Department of Pathology, Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Huan Zhang
- Cancer Prevention Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Dezheng Wang
- NCDs Preventive Department, Tianjin Centers for Disease Control and Prevention, Tianjin, China
| | - Yijia Wang
- Laboratory of Oncologic Molecular Medicine, Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Li Xie
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Biyun Qian
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Clinical Research Promotion and Development Center, Shanghai Hospital Development Center, Shanghai, China
| | - Xipeng Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Nankai University, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
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3
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Yuan Z, Wang S, Wang Y, Li H, Gao W, Liu X, Han Y, Liu Z, Zhang Q, Ma H, Wang J, Wei X, Zhang X, Cui W, Zhang C. Age- and sex-stratified detection rates and associated factors of colorectal neoplasia in the Tianjin colorectal cancer screening program from 2012 to 2020. BMC Gastroenterol 2023; 23:435. [PMID: 38087194 PMCID: PMC10714643 DOI: 10.1186/s12876-023-03060-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
PURPOSE Colorectal cancer (CRC) screening has been implemented in Tianjin, China since 2012. The objective was to estimate the neoplasia detection rate in a high-risk population by age and sex and to investigate the potential factors associated with colorectal neoplasia. PATIENTS AND METHODS This study is based on data of the Tianjin CRC screening program from 2012 to 2020. Residents with a positive high-risk factors questionnaire (HRFQ) or a positive faecal immunochemical test (FIT) were identified as high-risk participants and were subsequently recommended for a free colonoscopy. RESULTS A total of 4,117,897 eligible participants aged 40-74 years completed both a HRFQ and FIT, and 217,164 (5.3%) of them were identified as high-risk participants. Positive rates of preliminary screening increased with age and were higher in females than in males. For 57,971 participants undertaking colonoscopy, the detection rates of nonadvanced adenoma, advanced adenoma and CRC were 37.8%, 5.7% and 1.6%, respectively. Detection rates of advanced neoplasia increased from the age of 50 and were higher in males. For nonadvanced neoplasia, a strong increase was observed in males from the age of 40 and in females from the age of 50. Male sex had a greater impact on individuals aged 40-49 than on older individuals. Several factors including current smoking, drinking, and higher body mass index (BMI) were significantly associated with the presence of neoplasia, whereas, these associations were mainly restricted to individuals aged above 50 but not those aged 40-49 years. CONCLUSIONS These findings support that age-specific risk stratification and sex-specific initiating ages for CRC screening should be recommended to improve the accuracy and effectiveness of current screening strategy.
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Affiliation(s)
- Zhen Yuan
- School of Medicine, Nankai University, Tianjin, China
| | - Shuyuan Wang
- School of Medicine, Nankai University, Tianjin, China
| | - Yuqi Wang
- School of Medicine, Nankai University, Tianjin, China
| | - Hongzhou Li
- Department of Endoscopy, Tianjin Union Medical Center, Tianjin, China
| | - Weifeng Gao
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Xinyu Liu
- Tianjin Medical University, Tianjin, China
| | - Youkui Han
- Department of General Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Zhaoce Liu
- School of Medicine, Nankai University, Tianjin, China
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Qinghuai Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
- Tianjin Institute of Coloproctology, Tianjin, China
| | - Hong Ma
- Department of Nursing, Tianjin Union Medical Center, Tianjin, China
| | - Junying Wang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Xiaomeng Wei
- Hospital Infection Management Division, Tianjin Union Medical Center, Tianjin, China
| | - Xipeng Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China.
- Tianjin Institute of Coloproctology, Tianjin, China.
| | - Wei Cui
- School of Mathematical Sciences and LPMC, Nankai University, Tianjin, China.
| | - Chunze Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China.
- Tianjin Institute of Coloproctology, Tianjin, China.
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Yuan Z, Wang S, Liu Z, Liu Y, Wang Y, Han Y, Gao W, Liu X, Li H, Zhang Q, Ma H, Wang J, Wei X, Zhang X, Cui W, Zhang C. A risk scoring system for advanced colorectal neoplasia in high-risk participants to improve current colorectal cancer screening in Tianjin, China. BMC Gastroenterol 2022; 22:466. [PMCID: PMC9670427 DOI: 10.1186/s12876-022-02563-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022] Open
Abstract
Abstract
Background
Given the limited effectiveness of the current Chinese colorectal cancer (CRC) screening procedure, adherence to colonoscopy remains low. We aim to develop and validate a scoring system based on individuals who were identified as having a high risk in initial CRC screening to achieve more efficient risk stratification and improve adherence to colonoscopy.
Methods
A total of 29,504 screening participants with positive High-Risk Factor Questionnaire (HRFQ) or faecal immunochemical test (FIT) who underwent colonoscopy in Tianjin from 2012–2020 were enrolled in this study. Binary regression analysis was used to evaluate the association between risk factors and advanced colorectal neoplasia. Internal validation was also used to assess the performance of the scoring system.
Results
Male sex, older age (age ≥ 50 years), high body mass index (BMI ≥ 28 kg/m2), current or past smoking and weekly alcohol intake were identified as risk factors for advanced colorectal neoplasm. The odds ratios (ORs) for significant variables were applied to construct the risk score ranging from 0–11: LR, low risk (score 0–3); MR, moderate risk (score 4–6); and HR, high risk (score 7–11). Compared with subjects with LR, those with MR and HR had ORs of 2.47 (95% confidence interval, 2.09–2.93) and 4.59 (95% confidence interval, 3.86–5.44), respectively. The scoring model showed an outstanding discriminatory capacity with a c-statistic of 0.64 (95% confidence interval, 0.63–0.65).
Conclusions
Our results showed that the established scoring system could identify very high-risk populations with colorectal neoplasia. Combining this risk score with current Chinese screening methods may improve the effectiveness of CRC screening and adherence to colonoscopy.
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Zhang M, Zhao L, Zhang Y, Jing H, Wei L, Li Z, Zhang H, Zhang Y, Zhu S, Zhang S, Zhang X. Colorectal Cancer Screening With High Risk-Factor Questionnaire and Fecal Immunochemical Tests Among 5, 947, 986 Asymptomatic Population: A Population-Based Study. Front Oncol 2022; 12:893183. [PMID: 35712520 PMCID: PMC9195590 DOI: 10.3389/fonc.2022.893183] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/27/2022] [Indexed: 12/15/2022] Open
Abstract
Background The recent uptrend in colorectal cancer (CRC) incidence in China is causing an increasingly overwhelming social burden. And its occurrence can be effectively reduced by sensitizing CRC screening for early diagnosis and treatment. However, a large number of people in China do not undergo screening due to multiple factors. To address this issue, since 2012, a CRC screening program has been initiated in Tianjin. Methods Residents aged 40-74 years were eligible for CRC screening. The first was to complete the high-risk factor questionnaire (HRFQ) and undergo fecal immunochemical test (FIT). Then those with a positive result in any of the two screening methods were recommended for a free colonoscopy. Results The detection rate of intestinal diseases increased with age, had a male predominance, and was higher in residents from central urban areas and those with primary school above education level. The sensitivity of predicting CRC after colonoscopy in the high-risk group was 76.02%; the specificity was 25.33%.A significant decrease in the detection rate of intestinal disease, CRC and advanced adenoma was observed from positive FIT, the high-risk group and positive HRFQ, 47.13%, 44.79%, 42.30%; 3.15%, 2.44%, 1.76%; 7.72%, 6.42%, 5.08%, in that order, while no inter-group difference was found for the detection of polyps. In addition, the different combinations of HRFQ and FIT can enroll more high-risk population than FIT or (and) HRFQ only, and thus detect more intestinal diseases (include CRC/AA/Polyp). Conclusion The superimposition of different screening method for HRFQ and FIT is an effective strategy for the detection of CRC, AA, and Polyp, compared to HRFQ or FIT alone. However, further improvements in screening and interventions are needed to promote colonoscopy compliance.
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Affiliation(s)
- Mingqing Zhang
- Nankai University School of Medicine, Nankai University, Tianjin, China.,Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.,Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China.,The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Lizhong Zhao
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.,Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Yongdan Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.,Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Haoren Jing
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.,Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Lianbo Wei
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Zhixuan Li
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Haixiang Zhang
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Yong Zhang
- Center for Applied Mathematics, Tianjin University, Tianjin, China
| | - Siwei Zhu
- Nankai University School of Medicine, Nankai University, Tianjin, China.,Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.,Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China.,The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Shiwu Zhang
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China.,Department of Pathology, Tianjin Union Medical Center, Tianjin, China
| | - Xipeng Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.,Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China.,The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
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Huang Y, Cai S, Li Q, Song Y, Yuan Y, Zhang S, Zheng S. Six years of colorectal cancer mortality surveillance in the screening population for a risk stratified screening program. Cancer Epidemiol 2021; 73:101937. [PMID: 33941483 DOI: 10.1016/j.canep.2021.101937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/31/2021] [Accepted: 04/04/2021] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To evaluate the impact of a colorectal cancer (CRC) risk predicting system on CRC mortality rates. METHOD An organized population screening program targeted at all the subjects (n = 102,076) at age 40-74 in nine towns of Jiashan county, China was conducted from 2007 to 2012. All of the screening participants were first triaged into high-risk & low-risk groups by a questionnaire and two fecal immunuochemical tests, only the high-risk subjects were subject to colonocopy. The screening participants were surveyed death caused by CRC for a total of six years after the enrollment. The CRC mortality in subgroups of the screening population was analyzed. RESULTS A total of 82,184 (80.51 % of the targeted population) screening participants were identified. CRC death were recorded for 142 subjects (28.819 per 105 person-years). The age-adjusted relative risk(RR) of CRC death in the high-risk subjects (n = 12862, 84.48 per 105 person-years) was 3.92 (95 % CI = 2.81-5.49) compared with the low-risk subjects (n = 69322, 18.52 per 105 person-years). In the high-risk group, the age-adjusted RR of CRC death for those accepted colonoscopies (51.44 per 105 person-years) compared with those refused colonoscopies (187.94 per 105 person-years, P < 0.0001) was 0.34 (95 % CI = 0.21-0.56). The first three years after screening has seen the largest difference of CRC death hazard in both comparing groups. CONCLUSION The high-risk subjects triaged by the risk predicting system have a higher CRC mortality rate than the low-risk subjects, especially in the first three years after screening. Refusal of colonoscopy is risky behavior for the high-risk subject.
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Affiliation(s)
- Yanqin Huang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shanrong Cai
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qilong Li
- Jiashan Institute of Cancer Prevention and Treatment, Jiaxing, Zhejiang, China
| | - Yongmao Song
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| | - Ying Yuan
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Medical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| | - Suzhan Zhang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shu Zheng
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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7
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Lin G, Feng Z, Liu H, Li Y, Nie Y, Liang Y, Li K. Mass screening for colorectal cancer in a population of two million older adults in Guangzhou, China. Sci Rep 2019; 9:10424. [PMID: 31320661 PMCID: PMC6639356 DOI: 10.1038/s41598-019-46670-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 06/28/2019] [Indexed: 12/28/2022] Open
Abstract
Screening is an effective measure to prevent and control colorectal cancer (CRC). A mass CRC screening programme was conducted in Guangzhou from 2015 to 2017. Public media and reminders from a mobile short message service were used to invite residents aged between 50 and 74 years. A high-risk factor questionnaire (HRFQ) and biennial faecal immunochemical testing (FIT) were chosen as the primary screening methods, and individuals with a positive test result were referred to a defined hospital for an assessment colonoscopy. During the 3 years, 350,581 residents of the total eligible population of 2,283,214 attended the free first stage of screening. In all, 91.0% of the participants finished the HRFQs and FITs. The total uptake rate was 15.4%, which increased with age, female sex, and rural location. There was 15.9% positivity in the first stage of screening, including 8.5% positive HRFQs, 6.2% positive FITs and 1.2% positive HRFQs and FITs. In total, 10,600 individuals with positive HRFQs/FITs completed an assessment colonoscopy. The total uptake rate of colonoscopies was 18.9%, which decreased with age and female sex. Three hundred fifty-one CRCs and 980 advanced adenomas (AAs) were diagnosed with positive predictive values (PPV) of 3.3% and 9.2%, respectively. The PPVs of CRCs in the exclusively FIT-positive population were 4.9%, which was 10 times greater than in the exclusively HRFQ-positive population (0.5%). The PPVs of CRCs and AAs increased with age and male sex. The detection ratio of localized CRCs (including stage I and stage II) increased 68.1% due to screening. Although the compliance rate was low, the PPVs for CRCs and AAs were high. More effective mobilization of the programme's needs and subsidies for colonoscopies should be taken into account to increase compliance.
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Affiliation(s)
- Guozhen Lin
- Colorectal Cancer Screening Programme, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China.
- Cancer Registry, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China.
| | - Zhiqiang Feng
- Department of Gastroenterology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Huazhang Liu
- Colorectal Cancer Screening Programme, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Yan Li
- Colorectal Cancer Screening Programme, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
- Cancer Registry, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Yuqiang Nie
- Department of Gastroenterology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Yingru Liang
- Colorectal Cancer Screening Programme, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
- Cancer Registry, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
| | - Ke Li
- Cancer Registry, Guangzhou Center for Disease Control and Prevention, Guangzhou, 510440, China
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8
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Shams AZ, Haug U. Strategies for prevention of gastrointestinal cancers in developing countries: a systematic review. J Glob Health 2018; 7:020405. [PMID: 29250323 PMCID: PMC5718709 DOI: 10.7189/jogh.07.020405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Gastrointestinal cancers account for one third of total cancer incidence and mortality in developing countries. To date, there is no systematic synthesis of evidence regarding strategies to prevent gastrointestinal cancers in developing countries. We aimed to provide a systematic overview of studies evaluating strategies for prevention or early detection of the three most common gastrointestinal cancers (gastric, liver and colorectal cancer) in developing countries. Methods We searched MEDLINE, Web of Science and WHO Global Index Medicus databases for relevant articles published until October 2016 using combinations of the search terms “gastrointestinal”, “digestive system”, “gastric”, “liver”, “colorectal”, “cancer”, “prevention”, “early detection” and “developing country” (including names). Results Overall, 73 articles met the inclusion criteria, providing information on short– and long–term outcomes (up to 30 years) from various intervention studies (∼45% randomized). Trials on hepatitis B vaccination consistently showed vaccine efficacy over time and indicated long–term preventive effects on liver cancer incidence that start to become measurable at the population level. Studies on anti–H. pylori treatment suggested a reduction in gastric cancer incidence reaching statistical significance after long–term follow–up, while evidence regarding a preventive effect in persons with precancerous lesions is still inconclusive. The studies regarding colorectal cancer focused on early detection, ∼90% of which were restricted to intermediate endpoints. Conclusion In conclusion, there were a number of studies on gastric and liver cancer prevention in developing countries showing promising results after long–term follow–up. Important next steps include pooled meta–analyses as far as possible given the heterogeneity between studies as well as implementation research.
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Affiliation(s)
- Ahmad Zia Shams
- Epidemiological Cancer Registry Baden-Wuerttemberg, German Cancer Research Centre, Heidelberg, Germany.,Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology, Bremen, Germany
| | - Ulrike Haug
- Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology, Bremen, Germany.,Faculty of Human and Health Sciences, University of Bremen, Bremen, Germany
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Abstract
Current knowledge on the impact of chemotherapy on schistosomiasis-related morbidity is still fragmentary. In urinary schistosomiasis, reversal of organ pathology follows cure after 6 months and resurgence takes place after at least another 6 months. Retreatment after less than 1 year is, therefore, unnecessary. Also, intestinal schistosomiasis appears to regress promptly after chemotherapy. For the reversal of hepatic morbidity, more than one chemotherapy round appears necessary at least in foci of intense transmission of schistosomiasis. The earlier chemotherapy is given, the higher the chances of reversal of schistosomal pathology, but pathology may regress to some extent also in adults. The regression and resurgence of periportal fibrosis, as detected by ultrasonography, occurs with a delay of 7 months to more than 2 years after therapy. Retreatment after less than 1 year may not permit full assessment of the impact of the first round on hepatic morbidity. Children and adolescents should be the major target population, taking into account that in many foci, children out-of-school must be covered because they are at the highest risk. Repeated treatment during childhood may prevent the development of urinary tract disease in adulthood. However, no data are available on the prevention of genital pathology. Repeated chemotherapy may have a long term effect on re-infection intensities and the development of severe morbidity, even in foci where control has been interrupted for many years. Severe hepatic fibrosis may be prevented even in foci of intense transmission provided more than two rounds of chemotherapy have been given in childhood and that chemotherapy is available on demand. Chemotherapy has an important impact on child development, physical fitness and working capacity. Its effect on growth and anemia is improved by simultaneous treatment of intestinal parasites and the provision of adequate iron supplementation. The impact of chemotherapy on many of the multifaceted manifestations of schistosomiasis has not been assessed systematically. More data are needed on gallbladder pathology, neuroschistosomiasis, endocrinologic disorders, bladder cancer and co-infections with other pathogens. In areas where control has been achieved, the overall morbidity and mortality has decreased with a delay of many years or even decades.
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Affiliation(s)
- Joachim Richter
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, University Clinics, Heinrich-Heine-University, Moorenstr 5, Düesseldorf D-40225, Germany.
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Al-Mashat F, Sibiany A, Radwi A, Bahadur Y, Al-Radi A, Meir H, Ahmed GE. Rectal cancer associated with schistosomiasis: report of two cases and review of the literature. Ann Saudi Med 2001; 21:65-7. [PMID: 17264594 DOI: 10.5144/0256-4947.2001.65] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- F Al-Mashat
- Department of Surgery, College of Medicine and Allied Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.
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