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The impact of prostate cancer knowledge on cancer screening.

PURPOSE/OBJECTIVES: To test the effect of knowledge on participation in prostate cancer screening. DESIGN: Quasi-experimental design; PRECEDE framework. SAMPLE: 319 men, 82% African American. METHODS: Prostate cancer knowledge was measured with a Prostate Cancer Knowledge Questionnaire prior to a community-based educational program. Men were referred to their personal physicians for a free prostate cancer screening. Results were sent to the Prostate Cancer Project. MAIN RESEARCH VARIABLES: Prostate cancer knowledge and participation in free prostate screening with a digital rectal examination and prostate specific antigen. FINDINGS: Prostate cancer knowledge was a predictor in participation in screening (p = 0.05). IMPLICATIONS FOR NURSING PRACTICE: Nurses need to target educational interventions for African American men, who have the highest incidence of and mortality rates for prostate cancer, to significantly reduce mortality rates. This study documented the importance of providing educational programs to increase participation in prostate cancer screening.

Adult↗

Developing a breast cancer screening program for Chinese-American women.

The Chinese, like other minority groups, often underuse cancer screening services because of language, cultural, and economic barriers. Nonattendance reduces the probability that cancer will be detected in its earliest and often most curable form. To improve use of cancer screening services among Chinese-Americans, a community-based coalition organized a one-day demonstration cancer awareness and screening program--the Breast Cancer Screening Day for Chinese Women. More than 100 women, many of whom did not speak English, attended the program. Six abnormal mammograms required follow-up and one breast cancer was detected. The planning process used to develop this successful project is described as are suggestions to improve future screening programs for ethnic minorities.

Adolescent↗

Barriers to breast cancer screening: an integrative review.

Breast cancer has been increasing at an alarming rate and is considered to be of epidemic proportions in the United States, with current estimates indicating that 1 in 8 women will develop breast cancer during their lifetimes, according to Breast Cancer Facts and Figures, 1997, by the American Cancer Society [ACS]. In spite of the advances in technology to improve early diagnosis and an increased emphasis on education to promote awareness of early detection, 46,000 women die annually. A significant number of these losses could be prevented through risk reduction measures, yet many women do not practice breast self-exam (BSE) or receive adequate clinical screening. The purpose of this integrative review is to provide an analysis of the barriers to breast cancer screening with recommendations for future research. The studies will be categorized using the three modalities for breast cancer screening, mammography, clinical breast exam (CBE) and BSE. Demographic variables that impede breast cancer screening will be integrated into each section. The evidence is clear that in spite of breast cancer screening guidelines, increased awareness and access to mammography screening, women in the United States are not being screened adequately. Recommendations for future research will be included.

Adult↗

Colorectal cancer screening: physician recommendation is influential advice to Marylanders.

BACKGROUND: In comparison to the United States, Maryland is facing a significantly higher burden of colorectal cancer incidence and mortality. The primary objective of this study was to determine the predictors of colorectal cancer screening use in Maryland. METHODS: We performed secondary analyses on Maryland Cancer Survey 2002 data from 2994 respondents to investigate important predictors for individual colorectal cancer screening tests. CRC screening outcomes were defined as (1) FOBT within the past year, (2) sigmoidoscopy within the past 5 years, or (3) colonoscopy within the past 10 years. RESULTS: We found that clinician recommendation for a screening test is the best predictor in both age categories (50-64 years and 65+ years); it is a very strong indicator and consistently improves the odds of use by a factor of at least 8 for any screening test. CONCLUSIONS: There remains a great need for improved colorectal cancer screening in Maryland. According to our results, it is clear that the most influential way to improve overall colorectal cancer screening for each test and both age groups is to increase clinician recommendation for these tests.

Aged↗

Do gastroenterologists themselves follow the American Cancer Society recommendations for colorectal cancer screening?

OBJECTIVE: Colorectal cancer is a leading cause of mortality from cancer in the United States. Unfortunately, many patients already have advanced disease by the time symptoms occur. Screening of asymptomatic persons offers the potential of detecting the disease at its early and curable stages. The American Cancer Society (ACS) screening recommendations are the most widely employed in this country. We sought to determine whether gastroenterologists themselves follow the ACS recommendations, and if not, to determine their reasons for not doing so. We also looked at gastroenterologists' use of diets and supplements that might reduce the likelihood of colorectal cancer. METHOD: A questionnaire was mailed out to all gastroenterologists with U.S. addresses listed in the American College of Gastroenterology membership directory. RESULTS: Of 1466 respondents, 330 were excluded because they were at high risk for colorectal cancer or were not gastroenterologists. This left 875 gastroenterologists age 40 years and over and 261 gastroenterologists under age 40 for analysis. Overall, 68% of respondents felt the ACS recommendations were adequate; 32% did not. Of those who disagreed with the ACS recommendations, 58% preferred screening colonoscopy, and 22% preferred flexible sigmoidoscopy without annual fecal occult blood testing. Of gastroenterologists age 40 and over, 38% strictly followed the ACS recommendations themselves, 39% partially, and 23% did not follow them. Fifty percent of those who did not strictly follow the recommendations believed they were adequate but procrastinated or "did not have the time" to follow them. Overall, 82% of gastroenterologists said they used a high fiber diet, 68% used a diet low in fat, 18% used a calcium supplement, and 25% used aspirin regularly. CONCLUSIONS: Although two-thirds of gastroenterologists agreed with the ACS recommendations, only 38% themselves followed them strictly. Of the approximately one-third of gastroenterologists who considered them inadequate, a majority preferred screening colonoscopy. Gastroenterologists were more aggressive in following dietary practices that might help prevent colorectal cancer development than they were in undergoing screening.

Adult↗

The economics of prostate cancer screening.

The introduction of prostate-specific antigen (PSA) testing for use in the early detection of prostate cancer has led to controversy regarding the appropriateness of prostate cancer screening and any subsequent treatment. Much of this controversy arises from concern over the increased health-care costs that may result from widespread screening. As cost control becomes a dominant concern in today's health-care system, practitioners must decide whether the expense of screening and resulting treatment is worth the expenditure of its limited health-care system, practitioners must decide whether the expense of screening and resulting treatment is worth the expenditure of its limited health-care resources. This review first discusses the effects that widespread PSA screening would have on health-care costs. The benefits that will be realized by the expenditure of these additional health-care dollars are much more difficult to quantify. Decision analysis models have been used to evaluate the effectiveness of prostate cancer screening and treatment and have found little or no benefit. The current review illustrates how assumptions used to construct these models influence their results. The authors present a quantitative analysis of the costs and benefits of prostate cancer screening and treatment. This type of analysis demonstrates that prostate cancer screening and treatment may be a very cost-effective health-care intervention. Although men 50 to 70 years old will potentially benefit the most from PSA screening, this benefit will not be realized until they are in their seventh or eight decade of life. Society must decide if the years of life saved in these men warrants the use of its limited health-care resources. This decision will be easier when randomized, controlled trials are available to quantify the costs and benefits of PSA screening.

Cost Control↗

Can practicing physicians improve their counseling and physical examination skills in breast cancer screening? A feasibility study.

OBJECTIVE: To improve breast cancer screening skills, practicing non-academic primary care physicians were offered an opportunity to participate in a one-hour private skills-assessment session with a patient instructor. Research questions included: would physicians in non-academic practice be interested in a skills course; would the course improve their skills in breast examination and/or in counseling for mammography; and if they did improve, would the effect endure? DESIGN: Pilot study with cohort follow-up. INTERVENTIONS: Physicians were offered an opportunity to have their counseling and physical examination skills evaluated in a one-on-one interaction with standardized patients. The protocol included patient instructors who were trained to use a uniform breast health history that emphasized their increased risk of breast cancer, scant knowledge of breast-cancer screening, and fear of medical tests and cancer. The standardized patients were trained using a 77-point checklist. They demonstrated a high degree of consistency and reproducibility. A critical part of the learning experience was immediate feedback to the physicians regarding their performances. Physicians who took the course were given an opportunity to repeat it approximately 18 months later. MEASUREMENTS AND MAIN RESULTS: Of the 82 primary care physicians in the community, 49 (60%) were eligible to have their skills evaluated. Of these, 38 (77.6%) participated in the intervention. Baseline skills had mean scores (correct responses) better than 50% in most aspects of the physical examination but less than 35% in several critical counseling areas: reviewing mechanics of getting mammography, actually recommending mammography, and directing the patient regarding scheduling. Of the 38 physicians, 15 repeated the course. There was a significant improvement in their overall performance: 49% vs 67% (p = 0.002). CONCLUSIONS: Primary care physicians in a non-academic practice are interested in reviewing and improving their counseling skills. They are capable of improving their skills after receiving background information, instruction, and brief feedback. They maintain these improvements over time.

Breast Neoplasms↗

Prostate and colon cancer screening messages in popular magazines.

OBJECTIVES: To 1) compare the number of articles published about prostate, colon, and breast cancer in popular magazines during the past 2 decades, and 2) evaluate the content of in-depth prostate and colon cancer screening articles identified from 1996 to 2001. DESIGN: We used a searchable database to identify the number of prostate, colon, and breast cancer articles published in three magazines with the highest circulation from six categories. In addition, we performed a systematic review on the in-depth (> or = 2 pages) articles on prostate and colon cancer screening that appeared from 1996 through 2001. RESULTS: Although the number of magazine articles on prostate and colon cancer published in the 1990s increased compared to the 1980s, the number of articles is approximately one third of breast cancer articles. There were 36 in-depth articles from 1996 to 2001 in which prostate or colon cancer screening were mentioned. Over 90% of the articles recommended screening. However, of those articles, only 76% (25/33; 95% confidence interval [CI], 58% to 89%) cited screening guidelines. The benefits of screening were mentioned in 89% (32/36; 95% CI, 74% to 97%) but the harms were only found in 58% (21/36; 95% CI, 41% to 75%). Only 28% (10/36; 95% CI, 14% to 45%) of the articles provided all the necessary information needed for the reader to make an informed decision. CONCLUSIONS: In-depth articles about prostate and colon cancer in popular magazines do not appear as frequently as articles about breast cancer. The available articles on prostate and colon cancer screening often do not provide the information necessary for the reader to make an informed decision about screening.

Breast Neoplasms↗

A workplace breast cancer screening program. Costs and components.

Screening for breast cancer can result in early detection of malignancies and lives saved. Many employers now offer periodic screening as an employee health benefit, and some have established screening programs in the workplace. This study was performed to identify the employer costs of breast cancer screening in the workplace, referrals for suspicious findings, and initial treatment of malignant disease. Additionally, the costs for these same services, had they been obtained outside of a workplace screening program, were estimated. Data on program components and associated costs for an established employer based breast cancer screening program were obtained. These costs were compared to those among a hypothetical cohort of women not enrolled in the workplace screening program. From 1989 through 1995, 1,416 women participated in the program. Nearly 2,500 screening mammograms and approximately 2,773 clinical breast examinations were performed, resulting in 292 referrals to physicians outside of the program for additional diagnostic procedures and treatment as needed. These referrals resulted in the detection of 12 malignancies: 8 Stage I; 3 Stage II; and 1 Stage III. Mammographic and clinical breast examination screening cost $249,041; referrals resulting in benign disease or no detectable disease cost $185,002; and referrals resulting in malignant disease, followed by initial treatment, cost $148,530. Therefore, the total cost was $582,573. Approximately 47% of the cost of referrals and initial treatment were due to employee lost productivity. Total cost in the hypothetical cohort was $1,067,948 under the assumptions that all women received screening outside of the workplace, and that the same number of malignancies were detected at the same stage as in the workplace program. These findings indicate referrals resulting in detection of benign disease or no disease accounted for a substantial proportion of the total cost of the program. In addition, employee lost productivity accounted for almost 50% of the cost of all referrals and initial treatment. Workplace screening is a relatively efficient approach for early detection of breast cancer when compared to off site screening or no screening. The efficiency could be improved with a reduction in the number and cost of unnecessary referrals.

Adult↗

Effect of Medicare coverage on use of invasive colorectal cancer screening tests.

BACKGROUND: Colorectal cancer is the second leading cause of cancer death in the United States. Screening for colorectal cancer is now widely recommended but underused. Lack of insurance coverage for screening tests may be one reason patients do not undergo these procedures. OBJECTIVE: To determine the effect of Medicare reimbursement on utilization rates of invasive screening tests. Use of fecal occult blood testing was not studied before 1998. METHODS: We performed a retrospective analysis of ambulatory claims data for Washington State Medicare beneficiaries in 1994, 1995, and 1998. We determined the proportion of patients undergoing diagnostic and screening flexible sigmoidoscopy, colonoscopy, or double-contrast barium enema in 1994, 1995, and 1998 and the proportion receiving fecal occult blood testing in 1998. RESULTS: Use of diagnostic and screening colon tests was low in all years. Fewer than 6% of beneficiaries received any colon test, and fewer than 4% received a screening test. Although more patients underwent diagnostic testing after Medicare coverage began, use of screening tests did not significantly change (odds ratio, 0.99; 95% confidence interval, 0.97-1.01 comparing 1994 and 1998 [P =.33]). Women, individuals older than 80 years, and nonwhite patients were statistically significantly less likely to be screened in all 3 years (P<.001). In 1998, fewer than 7% of patients underwent fecal occult blood testing, with men and nonwhites statistically significantly less likely to have this test (P<.001). CONCLUSIONS: Colorectal cancer screening tests are underused in the Washington State Medicare population, and insurance coverage for these tests did not substantially affect utilization rates in the period studied.

Aged↗

Cancer prevention in the dental practice: oral cancer screening and tobacco cessation advice.

OBJECTIVES: In this paper we describe the proportion of US adults who report receiving oral cancer screening and tobacco cessation counseling and assistance from dentists and other health professionals. METHODS: Data from the 1992 National Health Interview Survey (NHIS) Cancer Control Supplement, a nationally representative sample of 12,035 adults 18 years of age and older, are analyzed. RESULTS: In 1992, less than 10 percent of adults reported oral cancer screening by a dentist or hygienist within the past three years. White adults (10.1%, 95% CI = 9.3, 10.9) reported an oral cancer screening three times more frequently than black (3.2%, 95% CI = 1.9, 4.5) or Hispanic (3.4%, 95% CI = 2.1, 4.7) adults. About half of adult current smokers had seen a dentist within 12 months, and of those only 24.1 percent (95% CI = 21.7, 26.5) had been advised to quit smoking. Heavy smokers (two or more packs a day) were more likely to have been advised to quit than light (pack or less per day) or occasional smokers. A similar proportion (24.3%, 95% CI = 17.6, 31.0) of white adult men who reported using smokeless tobacco products had been told by a dentist to quit using tobacco. CONCLUSIONS: Results from this population-based survey indicate that cancer screening and tobacco cessation advice are underutilized in the dental practice. Increased patient awareness and implementation of screening and tobacco cessation interventions could improve oral cancer incidence and mortality and have a public health benefit for other tobacco-related morbidity and mortality as well.

Adolescent↗

Cancer screening and informed patient discussions. Truth and consequences.

While screening for asymptomatic cancer has become one of the principal clinical activities of primary care physicians, patients are generally not involved directly in screening decisions. To help physicians better communicate the potential benefits and burdens of cancer screening, this article concisely presents information necessary for patients to make a reasoned decision as to whether to proceed with screening: the probability of developing cancer, the operating characteristics of available screening tests, the likelihood that screening will result in an improved outcome for the individual patient, and the potential burdens associated with screening. Screening tests for breast, colorectal, cervical, and prostate cancers are reviewed, including mammography, clinical breast examination, fecal occult blood testing, Papanicolaou smear, digital rectal examination, and prostate-specific antigen. Better communication about cancer screening will promote shared decision making--a central tenet of the physician-patient relationship.

Decision Making↗

Correlates of colorectal cancer screening compliance among urban Hispanics.

Colorectal cancer (CRC) is the second most common cancer among Latinos; screening can reduce mortality from CRC. The aims of this study are; to assess the current compliance with free colorectal cancer screening among Hispanic women who are participating in a national breast and cervical cancer screening program (NBCCEDP), and to examine the effects of a set of key constructs from the HBM and the TPB on compliance with the Fecal Occult Blood Test (FOBT). We consecutively recruited 950 women from among those attending an initial appointment at an NBCCEDP site in northern Manhattan, and administered a questionnaire. Patients were offered a free Hemoccult kit, alongside instructions and print materials. The rate of FOBT compliance (in kit return) was 77.3%. Fatalism remained a statistically significant influence on FOBT compliance in the multivariate models, and there was a trend for higher FOBT return among West Indies women (primarily from the Dominican Republic). The findings of this study demonstrate the feasibility and acceptability of distributing FOBT kits through an existing national program for cancer screening of women. The results justify replication in a more heterogeneous group of Hispanics, with longer-term followup.

Attitude to Health↗

Knowledge, attitudes, and practices surrounding breast cancer screening in educated Appalachian women.

PURPOSE/OBJECTIVES: To determine how and what women learn about breast cancer and screening practices and which factors influence women's breast cancer screening practices. DESIGN: Descriptive analysis of questionnaire data collected at the time of enrollment in a clinical trial. SETTING: Breast care center of a mid-Atlantic academic health sciences center. SAMPLE: 185 women in a predominantly Appalachian, entirely rural state. METHODS: Participants completed the Modified Toronto Breast Self-Examination Inventory and questions related to personal mammography practices at the time of enrollment before randomization in a longitudinal clinical intervention study. MAIN RESEARCH VARIABLES: Women's demographics, knowledge of breast cancer screening practices, adherence to breast cancer screening guidelines, and motivation, knowledge, and practice proficiency surrounding breast cancer screening. FINDINGS: These educated women had knowledge deficits about breast cancer, breast cancer risk factors, and screening guidelines, particularly the timing and practice behaviors of breast self-examination. Women who had received healthcare and cancer-screening instruction by healthcare providers, including advanced practice nurses, had greater knowledge of breast cancer and detection practices. CONCLUSIONS: Women still have knowledge deficits about breast cancer, breast cancer detection, and personal risk factors. In addition, some educated women in this study failed to practice breast cancer screening according to current guidelines. IMPLICATIONS FOR NURSING: Practitioners must continue to remind and update women about breast disease, and women's cancer-screening practices must be reinforced. All levels of providers should improve their rates of performing clinical breast examinations with physical examinations. Nurses, who greatly influence women's health care, must remain current in their knowledge of breast disease, screening, and treatment.

Adult↗

Informed consent for cancer screening with prostate-specific antigen: how well are men getting the message?

OBJECTIVES: This study examined knowledge about prostate-specific antigen (PSA) screening among African Americans and Whites. Because PSA screening for prostate cancer is controversial, professional organizations recommend informed consent for screening. METHODS: Men (n = 304) attending outpatient clinics were surveyed for their knowledge about and experience with screening. RESULTS: Most men did not know the key facts about screening with PSA. African Americans appeared less knowledgeable than Whites, but these differences were mediated by differences in educational level and experience with prostate cancer screening. CONCLUSIONS: Public health efforts to improve informed consent for prostate cancer screening should focus on highlighting the key facts and developing different approaches for men at different levels of formal education and prior experience with screening.

Black or African American↗

How should we measure informed choice? The case of cancer screening.

Informed choice is increasingly recognised as important in supporting patient autonomy and ensuring that people are neither deceived nor coerced. In cancer screening the emphasis has shifted away from just promoting the benefits of screening to providing comprehensive information to enable people to make an informed choice. Cancer screening programmes in the UK now have policies in place which state that it is their responsibility to ensure that individuals are making an individual informed choice. There is a need to evaluate whether such policies mean that those people invited for screening are making informed choices, and how comprehensive information affects other variables such as uptake, cost effectiveness, and satisfaction. At the present time, there is no validated measure of informed choice in cancer screening. Such a measure could be used to evaluate the effectiveness of interventions to increase informed choice and levels of informed choice in a population invited for screening. It could encourage health professionals to be accountable. Factors important when measuring informed choice in cancer screening include an individual's understanding of the limitations of screening, the ability to make an autonomous choice, and the difference between choice and behaviour.

Attitude of Health Personnel↗

Further evidence of benefits of a (non-randomised) breast cancer screening programme: the DOM project.

STUDY OBJECTIVE: The aim was to demonstrate the benefits of breast cancer screening on mortality. DESIGN: The study was an evaluation of a breast cancer screening programme by means of different approaches: (1) a case-control study, breast cancer deaths being the cases; (2) comparing the numbers of breast cancer deaths in screened and unscreened women; (3) comparing breast cancer mortality before and after start of the programme; (4) comparing breast cancer mortality in different large cities; (5) comparing screening activity with mortality reduction. SETTING: The setting was a breast cancer screening programme in the city of Utrecht, the DOM project, for women aged 50-64 years old at intake, birth cohort 1911-1925. The programme started in 1974, and there were five screening rounds up to 1984. Participation rate in the first round was 72% (14,697 women). MAIN RESULTS: (1) Screening was protective against dying from breast cancer, odds ratio 0.52, with a stronger effect in older women and no evidence of confounding; (2) risk ratio of dying from breast cancer for women in the response group was the same as the odds ratio, 0.52; (3) breast cancer death rate after the start of the project was nearly 20% lower than before the project started; after correcting for women who could not have benefited from screening the reduction was 33%; (4) a rise in breast cancer mortality in birth cohort 1911-1925 seen in other large cities without a screening programme due to aging of the cohort was not seen in the city of Utrecht; (5) mortality reduction followed the screening activity with a time lag of approximately 5 years. CONCLUSIONS: Early diagnosis of breast cancer by mammography reduces breast cancer mortality in women 50-64 years old at intake; different approaches to the evaluation of the project give different estimates of the screening effect, making clear that the effect depends on the intensity of the programme.

Breast Neoplasms↗

Prospects for the secondary prevention of colorectal cancer: screening by flexible sigmoidoscopy?

It may be useful to draw an analogy between the proposed screening programme for colorectal cancer and the cervical cancer screening programme. Both tumours show a spectrum of histological abnormalities consistent with a premalignant phase. The natural history of these premalignant lesions is poorly understood and although some will progress, if untreated, to invasive disease, most will not. Light microscopy cannot confidently distinguish which cases will progress and which will regress, and clinicians are therefore obliged to treat all. This will result in the destruction of many lesions of uncertain malignant potential. The secondary prevention of cervical cancer, although therapeutically efficacious, is inefficient. A lack of understanding of the natural history of intraepithelial neoplasia has frustrated attempts to develop rational referral criteria, and it is only now that the appropriate trials are being undertaken. The development of outpatient investigative and therapeutic procedures has resulted in many more women being referred for investigation and treatment, with predictable pressure on other services offered by gynaecologists, but no demonstrable saving of life. Similar uncertainties surround a screening programme for colorectal cancer. The principal concerns are not about the efficacy of polypectomy in interrupting the polyp cancer sequence, although uncertainties about the frequency with which cancer arises de novo do require that the effectiveness of this intervention is formally tested. Our major concerns are with compliance, and the management of the individual who tests positive--that is, who is found to have a distal polyp. Technological advances and operator enthusiasm may, as has happened with the cervical screening programme, lead to a relaxation in the indications for further investigation and treatment. Such a development would affect resources substantially if a population screening programme were in place. Nevertheless, there are grounds for believing that a screening programme for colorectal cancer, using sigmoidoscopy, might be successful in certain age groups if compliance was satisfactory. The scale of benefits may be comparable with those achieved by the breast screening programme. Our limited cost analysis, which relates to only to specific items of clinical activity, suggest that the mean cost for each case of cancer prevented will be about 8000 pounds sterling. These conclusions suggest that screening by flexible sigmoidoscopy merits serious consideration. It is also imperative, however, that consideration should be given to resolving some of the uncertainties about the clinical management and surveillance of those found to have distal polyps.

Age Factors↗