Workgroup I: criteria for screening. UICC International Workshop on Facilitating Screening for Colorectal Cancer, Oslo, Norway (29 and 30 June 2002)

From the bench to public health: population-level implementation intentions in colorectal cancer screening

BACKGROUND

Early detection of colorectal cancer (CRC) using fecal occult blood test (FOBT) reduces mortality, yet screening adherence remains low.

PURPOSE

Enhancing FOBT adherence in a field experiment, using Implementation Intentions (II) technique.

DESIGN

Participants were randomly assigned to a standard care group or to II experimental group.

SETTING/PARTICIPANTS

A test kit was mailed to 29,833 HMO-insured members in two waves in 2011.

INCLUSION CRITERIA

eligible persons aged 50-74 who underwent the test the year before. A sample of 2200 participants was interviewed over the telephone for possible cognitive and background moderators.

INTERVENTION

Leaflet attached to the test kit containing an "if-then" condition and planning instructions of when, where, and how.

MAIN OUTCOME MEASURE

Test performance at 2 and 6 months following mailing of the test kit, retrieved from HMO's computerized database (2011-2012).

RESULTS

Adherence in the experimental group ranged 1.2%-6.6% higher than in the control group. Within 6 months of kits' mailing, test uptake for the two waves was 71.4% and 67.9% for experiment and control, respectively (χ(2)=40.58, p=0.0001). The difference remained significant after controlling for age, gender, marital status, and wave (OR=1.17, 95% CI=1.11, 1.23, p<0.0001). Test performance was related to cognitive and background variables. No interaction was found among cognitive or background variables and the intervention.

CONCLUSIONS

II technique is useful in increasing adherence to CRC screening, even in a mailed form rather than a face-to-face experimental situation. Mailed II is an inexpensive and effective method, applicable for public health.

Consensus on women's health aspects of polycystic ovary syndrome (PCOS): the Amsterdam ESHRE/ASRM-Sponsored 3rd PCOS Consensus Workshop Group

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in females, with a high prevalence. The etiology of this heterogeneous condition remains obscure, and its phenotype expression varies. Two widely cited previous ESHRE/ASRM sponsored PCOS consensus workshops focused on diagnosis (published in 2004) and infertility management (published in 2008), respectively. The present third PCOS consensus report summarizes current knowledge and identifies knowledge gaps regarding various women's health aspects of PCOS. Relevant topics addressed-all dealt with in a systematic fashion-include adolescence, hirsutism and acne, contraception, menstrual cycle abnormalities, quality of life, ethnicity, pregnancy complications, long-term metabolic and cardiovascular health, and finally cancer risk. Additional, comprehensive background information is provided separately in an extended online publication.

Psychological distress following fecal occult blood test in colorectal cancer screening--a population-based study

OBJECTIVE

To evaluate the possible psychological side-effect of participating in a colorectal cancer (CRC)-screening program.

MATERIALS AND METHODS

Six hundred participants in a Danish CRC screening feasibility study were invited to complete a short version of the SCL92 (symptom check list) questionnaire relating to the domains: anxiety, depression and somatization following information on the result of their fecal occult blood test. The questionnaire was repeated after 3 and 12 months. Results were analyzed according to age, gender and test result.

RESULTS

Participation rate was high, 84.5% at entry, and declined only slightly. The decline was not related to test results nor initial results from the questionnaire. At entry, scores in each dimension in the study population were similar to expected scores in the background population. Participants tested positive at entry had significantly higher scores in all three domains, this difference disappeared at 12 months follow-up. Men had declining scores in all three domains at 3 and 12 months follow-up, whereas women had declining scores only in the domain anxiety. Identical patterns in changes in scoring were found regardless of age and gender. Participants tested positive had, regardless of later results of diagnostic work-up, declining scores during follow-up.

CONCLUSIONS

Given the limitations of the study, the results demonstrate no adverse effect on psychological well-being within 12 months following CRC screening regardless of age, gender or test result.

Knowledge and attitudes of primary health care physicians and nurses with regard to population screening for colorectal cancer in Balearic Islands and Barcelona

BACKGROUND

Primary health care (PHC) professionals play a key role in population screening of colorectal cancer. The purposes of the study are: to assess knowledge and attitudes among PHC professionals with regard to colorectal cancer screening, as well as the factors that determine their support for such screening.

METHODS

Questionnaire-based survey of PHC physicians and nurses in the Balearic Islands and in a part of the metropolitan area of Barcelona.

RESULTS

We collected 1,219 questionnaires. About 84% of all professionals believe that screening for colorectal cancer by fecal occult blood test (FOBT) is effective. Around 68% would recommend to their clients a colorectal cancer screening program based on FOBT and colonoscopy. About 31% are reluctant or do not know. Professionals perceive the fear of undergoing a colonoscopy as the main obstacle in getting patients to participate, and the invasive nature of this test is the main reason behind their resistance to this program. The main barriers to support the screening program among PHC professionals are lack of knowledge (nurses) and lack of time (physicians). On multivariate analysis, the factors associated with reluctance to recommend colorectal cancer screening were: believing that FOBT has poor sensitivity and is complicated; that colonoscopy is an invasive procedure; that a lack of perceived benefit could discourage client participation; that only a minority of clients would participate; thinking that clients are fed up with screening tests and being unaware if they should be offered something to ensure their participation in the programme.

CONCLUSIONS

Two in every three PHC professionals would support a population screening program for colorectal cancer screening. Factors associated with reluctance to recommend it were related with screening tests characteristics as sensitivity and complexity of FOBT, and also invasive feature of colonoscopy. Other factors were related with patients' believes.

The public prefers fecal occult blood test over colonoscopy for colorectal cancer screening

The acceptability of colorectal cancer (CRC) screening tests to the population influences adherence. Population preferences between fecal occult blood test (FOBT) and colonoscopy for CRC screening were examined by previous test experience. The study population was a random sample of 413 members of Israel's largest Health Maintenance Organization (HMO) aged 48-68 years. In a telephone interview, an explanation was provided regarding FOBT and colonoscopy. Participants were asked which they preferred and their degree (1-6) of agreement with each of eight test characteristics. Overall Attitude Scores toward FOBT and colonoscopy were compared. Predictors of colonoscopy preference and of refusal to undergo screening were examined using a logistic regression model. FOBT was preferred as a screening test by 70.2% of the participants, colonoscopy by 9.3%, 7.4% were indecisive, and 13.1% were not interested in screening. FOBT and colonoscopy similarly scored highly as life saving (5.2 vs. 5.1, respectively), with colonoscopy scoring significantly higher as time consuming (3.8 vs. 1.3, P<0.0001), disturbing (4.6 vs. 1.8, P<0.0001), painful (4.1 vs. 1.0, P<0.0001), annoying (4.8 vs. 1.9, P<0.0001), and involving risk (3.2 vs. 1.0, P<0.0001). In a logistic multivariate analysis, preference of colonoscopy was associated with the perception of being at CRC risk [odds ratio (OR): 3.1 (95% confidence interval (CI): 1.3-7.6)], with more positive attitude scores towards this test [OR: 2.2 (95% CI: 1.6-3.0)], and with a more negative one toward FOBT [OR: 0.4 (95% CI: 0.3-0.7)]. Target population preferences for CRC screening supports a policy of FOBT screening for an average risk population and colonoscopy for high-risk individuals.

[The state of the colorectal screening in Hungary: lessons of the pilot programs]

In Hungary, colorectal cancer is the second most common malignant disease. Due to its natural history, colorectal cancer is particularly suitable for screening. At present, epidemiological evidences of the effectiveness of detection of the symptomless colorectal cancer and its precursors are only available for the demonstration of fecal occult blood, endoscopic methods are also in use. For mass screening, fecal occult blood tests are recommended. Guaiac-type chemical methods are widely criticized because of the lack of specificity. Out of the emerging technologies, immunochemical methods based on the antigenicity of blood proteins (hemoglobin) seem to be the most suitable. In the model programmes organized in the frame of the National Public Health Programme, an immunochemical method using two blood proteins (hemoglobin and albumin) have been used. The compliance was not more than 30-45%. About one-third of those with positive blood test refused colonoscopy. The programmes revealed a great number of adenomatous polyps and early cancers, and in the way, the effectiveness of the method has been proved. The model programmes are still continued. Before the continuous and gradual extension of colorectal screening, the validity of the specific method needs to be tested and proved in order to be recognized as a routine procedure for screening. There is a need to test the feasibility of total colonoscopy, however, to this effect the colonoscopic capacity in the country has to be further developed.

Relationship of diagnostic and therapeutic delay with survival in colorectal cancer: a review

BACKGROUND

Early diagnosis of colorectal cancer before the onset of symptoms improves survival. Once symptoms have occurred, however, the effect of delay on survival is unclear. We review here evidence on the relationship of diagnostic and therapeutic delay with survival in colorectal cancer.

METHODS

We conducted a systematic of Medline, Embase, Cancerlit and the Cochrane Database of Systematic Reviews to identify publications published between 1962 and 2006 dealing with delay, survival and colon cancer. A meta-analysis was performed based on the calculation of the relative risk (RR) and on a model of random effects.

RESULTS

We identified 40 studies, representing 20,440 patients. Fourteen studies were excluded due to excessively restricted samples (e.g. exclusion of patients with intestinal obstruction, with tumours at stage C or D at the time of diagnosis, or who died 1-3 months after surgery); or because they studied only a portion of the delay. Of the 26 remaining studies, 20 showed no association between delay and survival. In contrast, four studies showed that delay was a factor contributing to better prognosis, and two showed that it contributed to poorer prognosis. There was no association between delay and survival when the colon and rectum were considered separately, when a multivariate analysis was performed, and when the effects of tumour stage and degree of differentiation were taken into account. To perform a meta-analysis, 18 additional studies were excluded, since the published articles did not specify the absolute numbers. In the remaining eight studies, the combined relative risk (RR) of delay was 0.92 (confidence interval (CI) 95%: 0.87-0.97).

CONCLUSIONS

The results of the review suggest that there is no association between diagnostic and therapeutic delay and survival in colorectal cancer patients. Colon and rectum should be assessed separately, and it is necessary to adjust for other relevant variables such as tumour stage.

Investigating Hispanic/Latino perceptions about colorectal cancer screening: a community-based approach to effective message design

OBJECTIVE

The Hispanic/Latino population has been documented as having the lowest colorectal cancer (CRC) screening rates in the United States, putting this group at-risk for late-stage presentation of disease. We assessed knowledge, attitudes, and behavior regarding CRC screening to inform the development of messages that promote screening among Hispanic/Latino patients.

METHODS

In-person structured interviews with Spanish-speaking adults age 50-80 at two clinics and a senior center in a Hispanic/Latino community (N=234).

RESULTS

Most (67.1%) participants had no more than an eighth-grade education and 63.3% reported their reading ability as less than "very good." Only 18.4% of participants correctly identified the colon on a diagram; 19.2% correctly described at least one aspect of a polyp. Less than half of the participants perceived themselves as at-risk for CRC, and less than one-third knew about any of the standard screening tests. After hearing descriptions of the screening tests, participants perceived stool cards as easier, safer, less painful, less embarrassing, and less scary than endoscopy (p<.001). Approximately two-thirds of unscreened patients said that screening had never been mentioned or suggested to them; about one-quarter said they did not get screened because they felt fine or were not worried. Over 96% of participants said they would get screened if a doctor suggested it.

CONCLUSION

Assessing knowledge, attitudes, beliefs, and experiences in the community of interest is a promising approach for developing effective targeted health messages.

PRACTICE IMPLICATIONS

Messages to increase CRC screening knowledge and behavior in the Hispanic/Latino community should address risk factors, identify relevant anatomy, explain polyps and their asymptomatic presentation, and clearly describe options.