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Wee HL, Canfell K, Chiu HM, Choi KS, Cox B, Bhoo-Pathy N, Simms KT, Hamashima C, Shen Q, Chua B, Siwaporn N, Toes-Zoutendijk E. Cancer screening programs in South-east Asia and Western Pacific. BMC Health Serv Res 2024; 24:102. [PMID: 38238704 PMCID: PMC10797973 DOI: 10.1186/s12913-023-10327-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 11/14/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND The burden of cancer can be altered by screening. The field of cancer screening is constantly evolving; from the initiation of program for new cancer types as well as exploring innovative screening strategies (e.g. new screening tests). The aim of this study was to perform a landscape analysis of existing cancer screening programs in South-East Asia and the Western Pacific. METHODS We conducted an overview of cancer screening in the region with the goal of summarizing current designs of cancer screening programs. First, a selective narrative literature review was used as an exploration to identify countries with organized screening programs. Second, representatives of each country with an organized program were approached and asked to provide relevant information on the organizations of their national or regional cancer screening program. RESULTS There was wide variation in the screening strategies offered in the considered region with only eight programs identified as having an organized design. The majority of these programs did not meet all the essential criteria for being organized screening. The greatest variation was observed in the starting and stopping ages. CONCLUSIONS Essential criteria of organized screening are missed. Improving organization is crucial to ensure that the beneficial effects of screening are achieved in the long-term. It is strongly recommended to consider a regional cancer screening network.
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Affiliation(s)
- Hwee-Lin Wee
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Karen Canfell
- The Daffodil Centre, A Joint Venture with Cancer Council NSW and the University of Sydney, Sydney, NSW, Australia
| | - Han-Mo Chiu
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Kui Son Choi
- Graduate School of Cancer Science and Policy, National Cancer Center, Ilsandonggu, Goyang, Republic of Korea
| | - Brian Cox
- Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Nirmala Bhoo-Pathy
- Centre for Epidemiology and Evidence-Based Practice, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Kate T Simms
- The Daffodil Centre, A Joint Venture with Cancer Council NSW and the University of Sydney, Sydney, NSW, Australia
| | - Chisato Hamashima
- Division of Cancer Screening Assessment and Management, Institute of Cancer Control, National Cancer Center, Tokyo, Japan
- Teikyo University, Tokyo, Japan
| | - Qianyu Shen
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Brandon Chua
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Niyomsri Siwaporn
- Department of Medical Services, Ministry of Public Health, National Cancer Institute of Thailand, Bangkok, Thailand
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Esther Toes-Zoutendijk
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.
- Department of Public Health, Erasmus MC University Medical Center, P.O. Box 2014, Rotterdam, CA, 3000, the Netherlands.
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Wongseree P, Hasgul Z, Leerapan B, Iramaneerat C, Phisalprapa P, Jalali MS. Dynamics of colorectal cancer screening in low and middle-income countries: A modeling analysis from Thailand. Prev Med 2023; 175:107694. [PMID: 37660758 DOI: 10.1016/j.ypmed.2023.107694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
BACKGROUND Low and middle-income countries face constraints for early colorectal cancer (CRC) detection, including restricted access to care and low colonoscopy capacity. Considering these constraints, we studied strategies for increasing access to early CRC detection and reducing CRC progression and mortality rates in Thailand. METHODS We developed a system dynamics model to simulate CRC death and progression trends. We analyzed the impacts of increased access to screening via fecal immunochemical test and colonoscopy, improving access to CRC diagnosis among symptomatic individuals, and their combination. RESULTS Projecting the status quo (2023-2032), deaths per 100K people increase from 87.5 to 115.4, and CRC progressions per 100K people rise from 131.8 to 159.8. In 2032, improved screening access prevents 2.5 CRC deaths and 2.5 progressions per 100K people, with cumulative prevented 7K deaths and 9K progressions, respectively. Improved symptom evaluation access prevents 7.5 CRC deaths per 100K with no effect on progression, totaling 35K saved lives. A combined approach prevents 9.3 deaths and 1.8 progressions per 100K, or 41K and 7K cumulatively. The combined strategy prevents most deaths; however, there is a tradeoff: It prevents fewer CRC progressions than screening access improvement. Increasing the current annual colonoscopy capacity (200K) to sufficient capacity (681K), the combined strategy achieves the best results, preventing 15.0 CRC deaths and 10.3 CRC progressions per 100K people, or 54K and 30K cumulatively. CONCLUSION Until colonoscopy capacity increases, enhanced screening and symptom evaluation are needed simultaneously to curb CRC deaths, albeit not the best strategy for CRC progression prevention.
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Affiliation(s)
- Peeradon Wongseree
- Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Zeynep Hasgul
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Borwornsom Leerapan
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | | | - Mohammad S Jalali
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA, USA.
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Danpanichkul P, Ongsupankul S, Moolkaew P, Yamsiri R, Panpradist N. Increased Incidence of Early-Onset Colorectal Cancer in Low Sociodemographic Index Countries: Higher Rising Burden in Young Females. Cureus 2023; 15:e38998. [PMID: 37323313 PMCID: PMC10262921 DOI: 10.7759/cureus.38998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2023] [Indexed: 06/17/2023] Open
Abstract
Introduction Early-onset colorectal cancer (EOCRC) is becoming a growing concern due to its increased incidence among younger individuals, particularly in areas with limited healthcare access and funding, such as in countries with a low sociodemographic index (SDI). However, there are limited studies regarding this problem. Therefore, our study primarily aims to address the dearth of knowledge in this area by assessing the trends in EOCRC in low SDI countries over 10 years. Methods In this study, we analyzed data from the Global Burden of Disease Study 2019 to investigate the changes in EOCRC over time in low SDI countries. Our analysis involved determining the yearly frequencies and age-standardized rates (ASRs) of EOCRC incidence, death, and disability-adjusted life years (DALYs) by gender. Results In 2019, the number of newly diagnosed EOCRC cases in low SDI countries was 7,716, while the global cases were 225,736. The incidence rates of EOCRC increased significantly higher in low SDI countries compared to the global average between 2010 and 2019, with a 1.38-fold higher increase among females. Mortality rates and DALYs also increased in the low SDI countries, with the annual percentage change from 2010 to 2019 of 0.96 (95% uncertainty interval (UI): 0.88-1.03) and 0.91 (95% UI: 0.83-0.98), respectively. Conclusion Our research highlights a significant rise in CRC in low SDI countries, particularly in the female population. Therefore, it emphasizes the need for prompt and efficient interventions, including but not limited to effective screening methods and mitigation of risk factors.
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Affiliation(s)
| | - Sorawit Ongsupankul
- Department of Internal Medicine, John A. Burns School of Medicine, University of Hawai'i, Honolulu, USA
| | - Pinyada Moolkaew
- Immunology Unit, Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, THA
| | - Ranchana Yamsiri
- Immunology Unit, Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, THA
| | - Nuttada Panpradist
- Global Center for Integrated Health of Women, Adolescents, and Children (Global WACh), University of Washington, Seattle, USA
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Ngan TT, Ramanathan K, Saleh MRBM, Schliemann D, Ibrahim Tamin NSB, Su TT, Donnelly M, O'Neill C. Budget impact analysis of a home-based colorectal cancer screening programme in Malaysia. BMJ Open 2023; 13:e066925. [PMID: 36944471 PMCID: PMC10032398 DOI: 10.1136/bmjopen-2022-066925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 03/13/2023] [Indexed: 03/23/2023] Open
Abstract
OBJECTIVES The 2020-2022 research project 'Colorectal Cancer Screening Intervention for Malaysia' (CRC-SIM) evaluated the implementation of a home-based CRC screening pilot in Segamat District. This budget impact analysis (BIA) assessed the expected changes in health expenditure of the Malaysian Ministry of Health budget in the scenario where the pilot programme was implemented nationwide vs current opportunistic screening. DESIGN Budget impact analysis. Assumptions and costs in the opportunistic and novel CRC screening scenarios were derived from a previous evaluation of opportunistic CRC screening in community health clinics across Malaysia and the CRC-SIM research project, respectively. SETTING National level (with supplement analysis for district level). The BIA was conducted from the viewpoint of the federal government and estimated the annual financial impact over a period of 5 years. RESULTS The total annual cost of the current practice of opportunistic screening was RM1 584 321 (~I$1 099 460) of which 80% (RM1 274 690 or ~I$884 587) was expended on the provision of opportunistic CRC to adults who availed of the service. Regarding the implementation of national CRC screening programme, the net budget impact in the first year was estimated to be RM107 631 959 (~I$74 692 546) and to reach RM148 485 812 (~I$103 043 589) in the fifth year based on an assumed increased uptake of 5% annually. The costs were calculated to be sensitive to the probability of adults who were contactable, eligible and agreeable to participating in the programme. CONCLUSIONS Results from the BIA provided direct and explicit estimates of the budget changes to when implementing a population-based national CRC screening programme to aid decision making by health services planners and commissioners in Malaysia about whether such programme is affordable within given their budget constraint. The study also illustrates the use and value of the BIA approach in low-income and middle-income countries and resource-constrained settings.
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Affiliation(s)
- Tran Thu Ngan
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Kogila Ramanathan
- Global Public Health, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Selangor, Malaysia
- South East Asia Community Observatory, Monash University Malaysia, Selangor, Malaysia
| | | | | | | | - Tin Tin Su
- Global Public Health, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Selangor, Malaysia
- South East Asia Community Observatory, Monash University Malaysia, Selangor, Malaysia
| | - Michael Donnelly
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Ciaran O'Neill
- Centre for Public Health, Queen's University Belfast, Belfast, UK
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Kangwanrattanakul K. A systematic review of health state utility values in Thai cancer patients. Expert Rev Pharmacoecon Outcomes Res 2022; 22:1171-1186. [DOI: 10.1080/14737167.2022.2123796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gheysariyeha F, Rahimi F, Tabesh E, Hemami MR, Adibi P, Rezayatmand R. Cost-effectiveness of colorectal cancer screening strategies: A systematic review. Eur J Cancer Care (Engl) 2022; 31:e13673. [PMID: 35974390 DOI: 10.1111/ecc.13673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/30/2022] [Accepted: 06/24/2022] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Colorectal cancer (CRC) is the second leading cause of death worldwide and the use of CRC screening tests can reduce the incidence and mortality of the disease by early detection. This study aims to review cost-effectiveness strategies in different ages and countries, systematically. METHODS We searched ProQuest, Web of Science, Scopus, Cochrane, PubMed and Embase for related studies between 2010 and 2020. Articles that reported costs per Quality-Adjusted Life Year or Life Year Gain and Incremental Cost-Effectiveness Ratios to compare the cost-effectiveness of CRC screening strategies in the average-risk population were included in our study. RESULTS The search strategies identified 426 records and finally 48 articles were included in the systematic review based on included and excluded criteria. We identified seven strategies for CRC screening. Most of the strategies were performed in aged 50-75. These studies were reported by cost per Quality-Adjusted life year (QALY)/Life Year Gain (LYG) based on methods and perspectives and the ICER of comparison of two-by-two strategies. CONCLUSION Most of the CRC screening strategies were cost-effective, but there was big heterogeneity between the cost-effectiveness analysis of CRC screening strategies because of different screening methods, perspectives and screening populations. So, it is important to consider this heterogeneity to compare the economic evaluation studies in this field.
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Affiliation(s)
- Fatemeh Gheysariyeha
- Department of Health Economics, School of Management and Medical Information Sciences Isfahan University of Medical Science, Isfahan, Iran
| | - Farimah Rahimi
- Pharmacoeconomics and Pharma Management, Research Assistant Professor, Health Management and Economics Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Tabesh
- Gastroenterology and Hepatology, Isfahan Gastroenterology and Hepatology Research Center (IGHRC), Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Payman Adibi
- Gastroenterology and Hepatology, Isfahan Gastroenterology and Hepatology Research Center (IGHRC), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Rezayatmand
- Health Economics, Health Management and Economics Research Center Isfahan University of Medical Sciences, Isfahan, Iran
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Pausawasdi N, Tongpong P, Geeratragool T, Charatcharoenwitthaya P. An Assessment of Physicians’ Recommendations for Colorectal Cancer Screening and International Guidelines Awareness and Adherence: Results From a Thai National Survey. Front Med (Lausanne) 2022; 9:847361. [PMID: 35572969 PMCID: PMC9100397 DOI: 10.3389/fmed.2022.847361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 04/11/2022] [Indexed: 12/24/2022] Open
Abstract
Background Colorectal cancer (CRC) screening uptake is generally low in the Asia Pacific and physicians’ recommendations affect the screening participation. Objective The study aimed to assess Thai physicians’ recommendations for CRC screening, and the awareness of and adherence to international guidelines. Methods A survey containing questions assessing physicians’ demographic data, screening recommendations, and awareness of the international CRC screening guidelines assessed by clinical vignettes. Independent predictors of physicians’ recommendations for CRC screening were determined by logistic regression analysis. Results Five hundred and eighty-sixth of 1,286 (46%) physicians completed the survey, and 58% of them offered CRC screening. The majority of colorectal surgeons (91%) and gastroenterologists (86%) endorsed screening, whereas 35% of primary care physicians recommended screening. The patient’s age was the only factor influencing the physician’s decision to offer CRC screening (OR, 2.75: 95% CI, 1.61–4.67). Colonoscopy was the most recommended modality among specialists, whereas 60% of primary care physicians offered fecal occult blood tests (FOBTs). The guidelines awareness was noted in 81% of participants, with the highest rates among gastroenterologists and colorectal surgeons. Gastroenterologists were more likely to adhere to the guidelines than surgeons, but both recommended shorter interval surveillance colonoscopy than guidelines recommendations in cases of small hyperplastic rectosigmoid polyps. Conclusions Recommendations for CRC screening and awareness of guidelines vary among different specialties. A low proportion of primary care physicians recommended screening and colorectal surgeons and gastroenterologists recommended shorter intervals for surveillance of small hyperplastic polyp than suggested by guidelines.
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Affiliation(s)
- Nonthalee Pausawasdi
- Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- *Correspondence: Nonthalee Pausawasdi,
| | - Pongkamon Tongpong
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Tanawat Geeratragool
- Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Phunchai Charatcharoenwitthaya
- Siriraj GI Endoscopy Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Rajan V, Srinath H, Bong CYS, Cichowski A, Young CJ, Hewett PJ. Software Analysis of Colonoscopy Videos Enhances Teaching and Quality Metrics. Cureus 2022; 14:e23039. [PMID: 35464512 PMCID: PMC9001872 DOI: 10.7759/cureus.23039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2022] [Indexed: 11/29/2022] Open
Abstract
Purpose Machine learning algorithms were hypothesized as being able to predict the quality of colonoscopy luminal images. This is to enhance training and quality indicators in endoscopy. Methods A separate study involving a randomized controlled trial of capped vs. un-capped colonoscopies provided the colonoscopy videos for this study. Videos were analyzed with an algorithm devised by the Australian Institute for Machine Learning. The image analysis validated focus measure, steerable filters-based metrics (SFIL), was used to assess luminal visualization quality and was compared with two independent clinician assessments (C1 and C2). Goodman and Kruskal's gamma (G) measure was used to assess rank correlation data using IBM SPSS Statistics for Windows, version 25.0 (IBM Corp., Armonk, NY). Results A total of 500 random colonoscopy video clips were extracted and analyzed, 88 being excluded. SFIL scores matched with C1 in 45% and C2 in 42% of cases, respectively. There was a significant correlation between SFIL and C1 (G = 0.644, p < 0.005) and SFIL and C2 (G = 0.734, p < 0.005). Conclusion This study demonstrates that machine learning algorithms can recognize the quality of luminal visualization during colonoscopy. We intend to apply this in the future to enhance colonoscopy training and as a metric for quality assessment.
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Jakovljevic M, Tan CJ, Chaiyakunapruk N, Silva Julian G, Cheung KL, Hiligsmann M, Godman B, Opanga S, Scuffham PA, Gregg M. Global article collection: essential reads from around the world. J Med Econ 2022; 25:864-869. [PMID: 35678118 DOI: 10.1080/13696998.2022.2087960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Mihajlo Jakovljevic
- Institute of Comparative Economic Studies, Hosei University Faculty of Economics, Tokyo, Japan
- Department Global Health Economics & Policy, University of Kragujevac, Kragujevac, Serbia
- Institute of Advanced Manufacturing Technologies, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Chia Jie Tan
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Nathorn Chaiyakunapruk
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
- IDEAS Center, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT, USA
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia
| | | | - Kei Long Cheung
- Department of Health Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, UK
| | - Mickael Hiligsmann
- Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Brian Godman
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
- Department of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, South Africa
| | - Sylvia Opanga
- Department of Pharmaceutics and Pharmacy Practice, School of Pharmacy, University of Nairobi, Nairobi, Kenya
| | - Paul A Scuffham
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
| | - Michael Gregg
- Executive Editor, Journal of Medical Economics, Taylor & Francis, London, UK
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Zhou Q, Li HL, Li Y, Gu YT, Liang YR, Liu HZ, Li K, Dong H, Chen YY, Lin GZ. Cost-effectiveness analysis of different screening strategies for colorectal cancer in Guangzhou, southern China: a Markov simulation analysis based on natural community screening results. BMJ Open 2021; 11:e049581. [PMID: 34489283 PMCID: PMC8422490 DOI: 10.1136/bmjopen-2021-049581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 08/16/2021] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES To evaluate the cost-effectiveness of four different primary screening strategies: high-risk factor questionnaire (HRFQ) alone, single immunochemical faecal occult blood test (iFOBT), double iFOBT and HRFQ+double iFOBT for colorectal cancer (CRC) screening compared with no screening using the Markov model. METHODS Treeage Pro V.2011 software was used to simulate the Markov model. The incremental cost-effectiveness ratio, which was compared with the willingness-to-pay (WTP) threshold, was used to reflect the cost-effectiveness of the CRC screening method. One-way sensitivity analysis and probabilistic sensitivity analysis were used for parameter uncertainty. RESULTS All strategies had greater effectiveness because they had more quality-adjusted life years (QALYs) than no screening. When the WTP was ¥435 762/QALY, all screening strategies were cost-effective compared with no screening. The double iFOBT strategy was the best-buy option compared with all other strategies because it had the most QALYs and the least cost. One-way sensitivity analysis showed that the sensitivity of low-risk adenoma, compliance with colonoscopy and primary screening cost were the main influencing factors comparing single iFOBT, double iFOBT and HRFQ+double iFOBT with no screening. However, within the scope of this study, there was no fundamental impact on cost-effectiveness. Probabilistic sensitivity analysis showed that when the WTP was ¥435 762/QALY, the probabilities of the cost-effectiveness acceptability curve with HRFQ alone, single iFOBT, double iFOBT and HRFQ+double iFOBT were 0.0%, 5.3%, 69.3% and 25.4%, respectively. CONCLUSIONS All screening strategies for CRC were cost-effective compared with no screening strategy. Double iFOBT was the best-buy option compared with all other strategies. The significant influencing factors were the sensitivity of low-risk polyps, compliance with colonoscopy and cost of primary screening.
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Affiliation(s)
- Qin Zhou
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Hai-Lin Li
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Yan Li
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Yu-Ting Gu
- Medical Record Statistics, Sun Yat-sen University First Affiliated Hospital, Guangzhou, Guangdong, China
| | - Ying-Ru Liang
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Hua-Zhang Liu
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Ke Li
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Hang Dong
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Yuan-Yuan Chen
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Guo-Zhen Lin
- Non-Communicable Chronic Disease Control and Prevention, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
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Bhoo-Pathy N, Bujang NNA, Ng CW. Continuation of Screening Endoscopy for Colorectal Cancer in Older Adults. JAMA Oncol 2021; 7:973-975. [PMID: 34014277 DOI: 10.1001/jamaoncol.2021.1119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Nirmala Bhoo-Pathy
- Centre for Epidemiology and Evidence-Based Practice, Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Nur-Nadiatul-Asyikin Bujang
- Centre for Epidemiology and Evidence-Based Practice, Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia.,Ministry of Health Malaysia, Menara Prisma, Persiaran Perdana, Putrajaya, 10 Wilayah Persekutuan Putrajaya, Malaysia
| | - Chiu-Wan Ng
- Centre for Epidemiology and Evidence-Based Practice, Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
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Damkliang K, Wongsirichot T, Thongsuksai P. TISSUE CLASSIFICATION FOR COLORECTAL CANCER UTILIZING TECHNIQUES OF DEEP LEARNING AND MACHINE LEARNING. BIOMEDICAL ENGINEERING: APPLICATIONS, BASIS AND COMMUNICATIONS 2021. [DOI: 10.4015/s1016237221500228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Since the introduction of image pattern recognition and computer vision processing, the classification of cancer tissues has been a challenge at pixel-level, slide-level, and patient-level. Conventional machine learning techniques have given way to Deep Learning (DL), a contemporary, state-of-the-art approach to texture classification and localization of cancer tissues. Colorectal Cancer (CRC) is the third ranked cause of death from cancer worldwide. This paper proposes image-level texture classification of a CRC dataset by deep convolutional neural networks (CNN). Simple DL techniques consisting of transfer learning and fine-tuning were exploited. VGG-16, a Keras pre-trained model with initial weights by ImageNet, was applied. The transfer learning architecture and methods responding to VGG-16 are proposed. The training, validation, and testing sets included 5000 images of 150 × 150 pixels. The application set for detection and localization contained 10 large original images of 5000 × 5000 pixels. The model achieved F1-score and accuracy of 0.96 and 0.99, respectively, and produced a false positive rate of 0.01. AUC-based evaluation was also measured. The model classified ten large previously unseen images from the application set represented in false color maps. The reported results show the satisfactory performance of the model. The simplicity of the architecture, configuration, and implementation also contributes to the outcome this work.
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Affiliation(s)
- Kasikrit Damkliang
- Division of Computational Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Thakerng Wongsirichot
- Division of Computational Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Paramee Thongsuksai
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
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Phisalprapa P, Ngorsuraches S, Wanishayakorn T, Kositamongkol C, Supakankunti S, Chaiyakunapruk N. Estimating the preferences and willingness-to-pay for colorectal cancer screening: an opportunity to incorporate the perspective of population at risk into policy development in Thailand. J Med Econ 2021; 24:226-233. [PMID: 33467947 DOI: 10.1080/13696998.2021.1877145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AIMS Colorectal cancer (CRC) is one of the public health burdens that can be lowered by early detection. This study aims to examine the preferences and willingness-to-pay of a population at risk for CRC screening in Thailand. Understanding the preferences for these individuals at risk would help Thailand, as an example of LMICs, to design effective population-based CRC screening programs. MATERIALS AND METHODS A discrete choice experiment (DCE) was conducted among screening-naïve adults aged 50-75 years, who were at risk of CRC, in the out-patient department of a tertiary care hospital in Thailand. A DCE questionnaire was developed from six CRC screening attributes. Each questionnaire was composed of six choice sets and each contained two alternatives described by the different levels of attributes and an opt-out alternative. Participants were asked to choose one alternative from each choice set. A multinomial logit model was developed to determine the relative preference of each attribute. The willingness-to-pays for all attributes and screening modalities and the estimated preferred choices of the annual fecal immunochemical test (FIT), 10-yearly colonoscopy, 5-yearly double-contrast barium enema (DCBE), 5-yearly computed tomographic colonography (CTC), 5-yearly flexible sigmoidoscopy (FS), and no screening was calculated and compared. RESULTS Four hundred participants were included. All attributes, except pain and less bowel preparation, were statistically associated with the participants' preference (p < .05). They preferred screenings with a high-risk reduction of CRC-related mortality, no complication, 5-year interval, and lower cost. The estimated preferred choices of FIT, colonoscopy, DCBE, CTC, and FS were 38.2%, 11.4%, 14.6%, 9.2%, and 11.4%, respectively. The willingness-to-pays for each screening modality was US$251, US$189, US$183, US$154, and US$142 (8,107, 6,105, 5,911, 4,974, and 4,587 THB) per episode, respectively. CONCLUSIONS The risk reduction of CRC-related mortality, complication, screening interval, and cost influenced the CRC screening preferences of Thai adults. FIT was the most preferred. Policymakers can develop a successful CRC screening campaign using these findings, incorporating the perspective of the population at risk in policy formulation to accomplish their goals.
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Affiliation(s)
- Pochamana Phisalprapa
- Center of Excellence for Health Economics, Faculty of Economics, Chulalongkorn University, Bangkok, Thailand
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Tanatape Wanishayakorn
- Faculty of Pharmaceutical Sciences (Pharmacy Administration), Prince of Songkhla University, Songkhla, Thailand
| | - Chayanis Kositamongkol
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Siripen Supakankunti
- Center of Excellence for Health Economics, Faculty of Economics, Chulalongkorn University, Bangkok, Thailand
| | - Nathorn Chaiyakunapruk
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
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Ciuti G, Skonieczna-Żydecka K, Marlicz W, Iacovacci V, Liu H, Stoyanov D, Arezzo A, Chiurazzi M, Toth E, Thorlacius H, Dario P, Koulaouzidis A. Frontiers of Robotic Colonoscopy: A Comprehensive Review of Robotic Colonoscopes and Technologies. J Clin Med 2020; 9:E1648. [PMID: 32486374 PMCID: PMC7356873 DOI: 10.3390/jcm9061648] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 12/15/2022] Open
Abstract
Flexible colonoscopy remains the prime mean of screening for colorectal cancer (CRC) and the gold standard of all population-based screening pathways around the world. Almost 60% of CRC deaths could be prevented with screening. However, colonoscopy attendance rates are affected by discomfort, fear of pain and embarrassment or loss of control during the procedure. Moreover, the emergence and global thread of new communicable diseases might seriously affect the functioning of contemporary centres performing gastrointestinal endoscopy. Innovative solutions are needed: artificial intelligence (AI) and physical robotics will drastically contribute for the future of the healthcare services. The translation of robotic technologies from traditional surgery to minimally invasive endoscopic interventions is an emerging field, mainly challenged by the tough requirements for miniaturization. Pioneering approaches for robotic colonoscopy have been reported in the nineties, with the appearance of inchworm-like devices. Since then, robotic colonoscopes with assistive functionalities have become commercially available. Research prototypes promise enhanced accessibility and flexibility for future therapeutic interventions, even via autonomous or robotic-assisted agents, such as robotic capsules. Furthermore, the pairing of such endoscopic systems with AI-enabled image analysis and recognition methods promises enhanced diagnostic yield. By assembling a multidisciplinary team of engineers and endoscopists, the paper aims to provide a contemporary and highly-pictorial critical review for robotic colonoscopes, hence providing clinicians and researchers with a glimpse of the major changes and challenges that lie ahead.
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Affiliation(s)
- Gastone Ciuti
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56025 Pisa, Italy; (V.I.); (M.C.); (P.D.)
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
| | - Karolina Skonieczna-Żydecka
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 71-460 Szczecin, Poland;
| | - Wojciech Marlicz
- Department of Gastroenterology, Pomeranian Medical University in Szczecin, 71-252 Szczecin, Poland;
- Endoklinika sp. z o.o., 70-535 Szczecin, Poland
| | - Veronica Iacovacci
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56025 Pisa, Italy; (V.I.); (M.C.); (P.D.)
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
| | - Hongbin Liu
- School of Biomedical Engineering & Imaging Sciences, Faculty of Life Sciences and Medicine, King’s College London, London SE1 7EH, UK;
| | - Danail Stoyanov
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London W1W 7TY, UK;
| | - Alberto Arezzo
- Department of Surgical Sciences, University of Torino, 10126 Torino, Italy;
| | - Marcello Chiurazzi
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56025 Pisa, Italy; (V.I.); (M.C.); (P.D.)
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
| | - Ervin Toth
- Department of Gastroenterology, Skåne University Hospital, Lund University, 20502 Malmö, Sweden;
| | - Henrik Thorlacius
- Department of Clinical Sciences, Section of Surgery, Lund University, 20502 Malmö, Sweden;
| | - Paolo Dario
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56025 Pisa, Italy; (V.I.); (M.C.); (P.D.)
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
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Factors to Improve Endoscopic Screening for Colorectal Cancer. J Gastrointest Cancer 2020; 52:289-293. [PMID: 32303997 DOI: 10.1007/s12029-020-00402-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Colorectal cancer is one of the most sprayed cancers; the gold standard of diagnostic is a colonoscopy. The quality of this examination is depended on many factors, which includes doctors' experience. PURPOSE The purpose of this study is to establish the main factors affecting the completeness of colonoscopy in colorectal cancer screening. MATERIALS AND METHODS Endoscopists were questioned; descriptive statistics methods and logistic regression were used. RESULTS AND DISCUSSION The main factors that influence the quality of screening colonoscopy were identified: experience in colonoscopy, theoretical training, participation in the screening program, and number of annual colonoscopies. The calculated odds ratio for the selected dependent variable is calculated. CONCLUSIONS The experience for more than 5 years (p = 0.017) and at least 200 colonoscopies per year (p = 0.004) are the main factors that allow to perform complete colonoscopy in 90% or more of cases.
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