scholarly journals Colorectal cancer and potential predictors of never screened for faecal occult blood test: a narrative review

2021 ◽  
Author(s):  
Mohd Fazeli Sazali ◽  
Syed Sharizman Syed Abdul Rahim ◽  
Firdaus Hayati ◽  
Mohd Nazri Mohd Daud ◽  
Richard Avoi ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Strong Association ◽  
Precancerous Lesion ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Crc Screening ◽  
Screening Uptake ◽  
Faecal Occult ◽  
Potential Factors ◽  
Never Screened

Colorectal cancer (CRC) is a major public health threat. Therefore, CRC screening uptake has been a focus with the established precancerous lesion and the strong association of early detection with staging and survival of the disease. However, CRC screening is relatively low in many countries. This article briefly discussed the current situation of CRC, recommendations, and current uptake of CRC screening in various countries. Besides that, this article also highlights the potential factors that help to predict the CRC screening uptake worldwide. Identification of those factors could guide policymakers to develop an effective strategy to improve the CRC screening uptake and ultimately improve the health outcome of the population.

scholarly journals Positive impact of a faecal-based screening programme on colorectal cancer mortality risk

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253369
Author(s):  
Gemma Ibáñez-Sanz ◽  
Núria Milà ◽  
Carmen Vidal ◽  
Judith Rocamora ◽  
Víctor Moreno ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Mortality Rate ◽  
Blood Test ◽  
Screening Program ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Occult Blood Test ◽  
Interval Cancers ◽  
Crc Screening ◽  
Faecal Occult

Introduction The effectiveness of colorectal cancer (CRC) screening programs is directly related to participation and the number of interval CRCs. The objective was to analyse specific-mortality in a cohort of individuals invited to a CRC screening program according to type of CRC diagnosis (screen-detected cancers, interval cancers, and cancers among the non-uptake group). Material and methods Retrospective cohort that included invitees aged 50–69 years of a CRC screening program (target population of 85,000 people) in Catalonia (Spain) from 2000–2015 with mortality follow-up until 2020. A screen-detected CRC was a cancer diagnosed after a positive faecal occult blood test (guaiac or immunochemical); an interval cancer was a cancer diagnosed after a negative test result and before the next invitation to the program (≤24 months); a non-uptake cancer was a cancer in subjects who declined screening. Results A total of 624 people were diagnosed with CRC (n = 265 screen-detected, n = 103 interval cancers, n = 256 non-uptake). In the multivariate analysis, we observed a 74% increase in mortality rate in the group with interval CRC compared to screen-detected CRC adjusted for age, sex, location and stage (HR: 1.74%, 95% CI:1.08–2.82, P = 0.02). These differences were found even when we restricted for advanced-cancers participants. In the stratified analysis for type of faecal occult blood test, a lower mortality rate was only observed among FIT screen-detected CRCs. Conclusion CRC screening with the FIT was associated with a significant reduction in CRC mortality.

scholarly journals Colorectal cancer screening: Barriers to the faecal occult blood test (FOBT) and colonoscopy in Singapore

2016 ◽  
Vol 25 (4) ◽  
pp. 207-214 ◽  
Author(s):  
Sook Kwin Yong ◽  
Whee Sze Ong ◽  
Gerald Choon-Huat Koh ◽  
Richard Ming Chert Yeo ◽  
Tam Cam Ha
Keyword(s):  
Colorectal Cancer ◽  
Family History ◽  
Blood Test ◽  
Screening Method ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Screening Methods ◽  
Occult Blood Test ◽  
Crc Screening ◽  
Faecal Occult

Introduction: This study aims to identify the barriers to adopting faecal occult blood test (FOBT) and colonoscopy as colorectal cancer (CRC) screening methods among the eligible target population of Singapore. Materials and methods: This study was previously part of a randomised controlled trial reported elsewhere. Data was collected from Singapore residents aged 50 and above, via a household sample survey. The study recruited subjects who were aware of CRC screening methods, and interviewed them about the barriers to screening that they faced. Collected results on barriers to each screening method were analysed separately. Results: Out of the 343 subjects, 85 (24.8%) recruited knew about FOBT and/or colonoscopy. Most of the respondents (48.9%) cited not having symptoms as the reason for not using the FOBT. This is followed by inconvenience (31.1%), not having any family history of colon cancer (28.9%), lack of time (28.9%) and lack of reminders/recommendation (28.9%). Of the respondents who indicated not choosing colonoscopy as a screening method, more than one-half (54.8%) identified not having any symptoms as the main barrier for them, followed by not having any family history (38.7%) and having a healthy/low-risk lifestyle (29.0%). There was no difference between the reported barriers to each of the screening methods and the respondents’ dwelling types. Conclusions: Lack of knowledge, particularly the misconceptions of not having symptoms and being healthy, were identified as the main barriers to FOBT and colonoscopy as screening methods. Interventions to increase the uptake of CRC screening in this population should be tailored to address this misconception.

scholarly journals Exploring the Barriers Toward Colorectal Cancer Screening: A Literature Review

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Rolla Hamdan ◽  
Jessie Johnson ◽  
Maryam Fatemi ◽  
Kathleen Benjamin ◽  
Afrah Moosa
Keyword(s):  
Colorectal Cancer ◽  
Cancer Screening ◽  
Blood Test ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Occult Blood Test ◽  
Faecal Occult Blood ◽  
Primary Health ◽  
Faecal Occult ◽  
Bowel Cancer Screening

Background: Colorectal cancer is the third most common cancer and the second leading cause of death worldwide. Bowel cancer screening helps prevent colon cancer by early detection of polyps, leading to efficient treatment and reduced mortality. Within Qatar, primary health facilities promote bowel screening by using the faecal occult blood test. However, the popularity and use of this test is still low. Aim: The aim of this literature review is to explore barriers related to colorectal cancer bowel screening using the faecal occult blood test in primary health care settings to facilitate colorectal cancer screening in Qatar. Method: Cronin’s five step framework for literature reviews was utilized for this paper. This review included nine articles that were peer-reviewed and published between 2009 and 2019. The nine articles were appraised by using the Mixed Methods Appraisal Tool. This tool has separate criteria to assess the quality of the qualitative, quantitative, and mixed-method studies. Result: Three main barriers to bowel cancer screening included knowledge deficit, personal beliefs and organizational barriers. Conclusion: The main barriers are related to the patients’ lack of knowledge and personal beliefs. Overcoming these barriers is essential to raising awareness about this issue among all nurses, physicians, and patients. It is necessary to involve stakeholders in order to mitigate barriers. Developing educational activities for healthcare professionals will provide information that they can share with patients to encourage screening and decrease the fear of the test. Developing a pamphlet to increase patient awareness will also encourage screening and work toward decreasing fear. Key words: faecal occult blood test, faecal immunochemical test, barriers

scholarly journals Adding familial risk assessment to faecal occult blood test can increase the effectiveness of population-based colorectal cancer screening

2011 ◽  
Vol 47 (10) ◽  
pp. 1571-1577 ◽  
Author(s):  
N. Dekker ◽  
L.G.M. van Rossum ◽  
M. Van Vugt-van Pinxteren ◽  
S.H.C. van Stiphout ◽  
R.P.M.G. Hermens ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Assessment ◽  
Cancer Screening ◽  
Blood Test ◽  
Familial Risk ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Population Based ◽  
Occult Blood Test ◽  
Faecal Occult

Screening for colorectal cancer

2002 ◽  
Vol 39 (4) ◽  
pp. 351-365 ◽  
Author(s):  
Bryan J Starkey
Keyword(s):  
Colorectal Cancer ◽  
Screening Method ◽  
Point Mutations ◽  
Occult Blood ◽  
Crc Screening ◽  
Faecal Occult Blood ◽  
Faecal Occult ◽  
The Uk ◽  
Visualization Techniques ◽  
Stool Analysis

Colorectal cancer (CRC) causes 20 000 deaths per annum in the UK alone. Screening has been shown to reduce mortality but debate exists as to which approach to use. Direct visualization of the colorectum has the advantage that it detects lesions most effectively and is required at less frequent intervals, but the procedure is invasive and at present too costly for screening purposes. Faecal occult blood measurement, despite its limitations, is currently the recommended screening method, with follow-up of positive tests by colonoscopy or other visualization techniques. This strategy has been shown to reduce mortality from CRC by about 20% and screening trials directed towards individuals in the over 50 years age group are underway in the UK and elsewhere. Future developments in CRC screening include colorectal visualization by computed colonography - a less-invasive alternative to colonoscopy. Developments in stool analysis are also occurring. Examination of faecal samples for cellular products derived from neoplasms (e.g. calprotectin) may prove more sensitive and specific than faecal occult blood measurements. In addition, detection of altered DNA in faeces is being investigated by molecular biology techniques. Using a multi-target assay panel to detect point mutations and other neoplasia-associated DNA abnormalities may be an effective strategy for CRC screening in the future.

scholarly journals Changes in prevalence of faecal occult blood positivity over time

2019 ◽  
Vol 26 (4) ◽  
pp. 191-196 ◽  
Author(s):  
Anna Goulding ◽  
Gavin RC Clark ◽  
Annie S Anderson ◽  
Judith A Strachan ◽  
Callum G Fraser ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Positive Predictive Value ◽  
Blood Test ◽  
Screening Programme ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Occult Blood Test ◽  
Faecal Occult Blood ◽  
Faecal Occult ◽  
Over Time

Objectives Changes in the prevalence of faecal occult blood test positivity over time have not been previously reported, but could have important implications. This study examined the positivity of the initial guaiac faecal occult blood test, a surrogate marker for colorectal bleeding, in participants aged 50 in a national bowel screening programme. Methods Data from the Scottish Bowel Screening Programme were used to study the initial positivity of the guaiac faecal occult blood test between 2007 and 2017. Positive predictive values of the testing process for colorectal cancer and adenoma were assessed over the same time period. Results Across Scotland, the initial guaiac faecal occult blood test positivity increased from 4.1 to 10.8%. In NHS Grampian and NHS Fife, two of the three NHS Boards which began roll-out of screening in 2007, it increased from 4.0 to 10.9%. In the Scottish Bowel Screening Programme, the positive predictive value declined from 11.0 to 6.6% for colorectal cancer and increased from 31.6 to 39.8% for adenoma. Conclusions In the Scottish programme over a decade, initial guaiac faecal occult blood test positivity increased in participants aged 50. This may be associated with changes in lifestyle and might have implications for screening clinical outcomes, including positive predictive value.

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