Community-based promotion of breast screening using small group education

Breast Cancer Epidemiology, Prevention, and Screening

Globally, breast cancer is both the most commonly occurring cancer and the commonest cause of cancer death among women. Available data suggest that incidence and mortality in high-resource countries has been declining whereas incidence and mortality in low-resource countries has been increasing. This pattern is likely to be due to changing risk factor profiles and differences in access to breast cancer early detection and treatment. Risk factors for breast cancer include increasing age, race, menarche history, breast characteristics, reproductive patterns, hormone use, alcohol use, tobacco use, diet, physical activity, and body habitus. Mutations in the BRCA 1 and BRCA 2 tumor suppressor genes are significantly associated with the development of breast and ovarian cancer by the age of 70. Survival depends on both stage and molecular subtype. As there are few signs and symptoms early on, early detection is an important strategy to improve outcomes. Major professional organizations in the United States and elsewhere recommend screening with mammography with appropriate follow up for an abnormal screening test, although they differ somewhat by recommended ages and frequency of screening. Studies suggest a 15%-40% mortality reduction secondary to screening, however, there are also concerns about harms, such as overdiagnosis (5%-54%) and overtreatment leading to long term complications, and false negatives (6%-46%). Identification of women at risk for BRCA1 and BRCA 2 mutations is also recommended with referral for genetic testing. Preventive interventions, such as lifestyle, medical, and surgical options are available for women testing positive for BRCA mutations.

Utilization of prevention research: searching for evidence

OBJECTIVE

Understanding the process of translating prevention research into practice calls for systematic efforts to assess the state of the published literature on the utilization of prevention research in public health programs and policy. This review describes the search strategy, methods, results, and challenges in identifying and reviewing literature relevant to this objective.

METHODS

Systematic searches of topics related to prevention research in literature published in 1995-2002 revealed 86 empiric articles in 12 public health areas.

RESULTS

A lack of uniform terminology, variation in publication sources, and limited descriptions of the stages of research utilization (e.g., adoption and implementation) in the published literature posed major challenges to identifying articles that met study criteria. Most accepted articles assessed the adoption or implementation of prevention research; four examined long-term sustainability. There was approximately equal distribution of reported research set in either health services or public health settings. Few of the articles contained search terms reflecting all four concept areas (prevention, public health, research, and use) targeted by the literature search.

CONCLUSIONS

Refining terms used in prevention research and research utilization could address lack of shared and unique definitions. Expanded reporting of research utilization stages in reports of prevention research could lead to improved literature searches and contribute to more successful adoption, implementation, and further use of prevention research products.

Using a community-based outreach program to improve breast health awareness among women in Hong Kong

OBJECTIVE

To evaluate the effectiveness of a community-based health education program via a mobile van to promote the awareness of breast cancer and breast self-examination (BSE) practice among women in Hong Kong.

DESIGN

One group pretest/posttest design. SAMPLE AND MEASUREMENTS: Seven hundred and seventy-seven women in Hong Kong completed a self-administered questionnaire before and after a breast health education program from May 2002 to March 2003.

RESULTS

About half were aware of breast health and breast diseases (53.7%) and breast screening methods (48.6%) before the intervention. It was found that women who had received instruction on BSE practice, and those who were aware of breast screening methods, breast health, and breast diseases were more likely to have had prior BSE practice. Most indicated their willingness to practice BSE regularly (93.3%) and to pass on the BSE knowledge to their relatives and friends (92%) in the posttest.

CONCLUSIONS

The outreach health education program has successfully reached women living in the 18 districts in Hong Kong. It appears to be useful in raising the awareness of breast health and BSE practice among the women, but longer term follow-up is required to ascertain its sustainability.

Early adoption of BRCA1/2 testing: who and why

PURPOSE

Relatively little is known about the characteristics of women who chose to undergo BRCA1/2 testing soon after testing became available, including how they became aware of and chose to pursue testing. Diffusion of innovation theory states that acceptance of an innovation is a function of the potential adopter's value for innovation and perceptions of the compatibility, complexity, and relative advantage of the innovation. These factors may contribute to early uptake of BRCA1/2 testing. The purpose of this study was to describe the characteristics of women who were "early adopters" of clinical BRCA1/2 testing and to determine whether diffusion theory explains variation in uptake of testing after participation in genetic counseling for BRCA1/2 testing.

METHODS

A retrospective cohort study of participants in genetic counseling for BRCA1/2 testing was conducted at a clinical program in a large academic health system. Measures included components of diffusion of innovation theory (participant's value for innovation, i.e., "innovativeness," and perceptions of the compatibility, complexity, and relative advantage of BRCA1/2 testing), characteristics of how the participant became aware of and sought BRCA1/2 testing, and decisions about testing after counseling.

RESULTS

From the 229 respondents, 71 (31%) had undergone testing at the time of the survey. Fifty-seven women (25%) had sought BRCA1/2 testing because a family member had breast or ovarian cancer and 37 (16%) because they had breast or ovarian cancer. Only 15 women (7%) reported seeking testing because of a physician's recommendation. After multivariate adjustment, higher innovativeness and higher ratings of the compatibility of BRCA1/2 testing were associated with undergoing testing after counseling [relative risk (RR) 1.76, 95% confidence interval (CI) 1.2-2.6]. However, ratings of the complexity or relative advantage of testing were not associated with testing decisions. Higher innovativeness was associated with being the first in the family to undergo testing (RR 4.85, 95% CI 1.6-14.9), becoming aware of BRCA1/2 testing through the media (RR 1.50, 95% CI 1.0-2.4), and being aware of BRCA1/2 testing prior to counseling (RR 1.25, 95% CI 1.1-1.4).

CONCLUSIONS

The uptake of BRCA1/2 testing among women undergoing genetic counseling was associated with innovative characteristics of the participant and the perceived compatibility of the test with existing values and needs, but not with the complexity or relative advantage of the test. Most "early adopters" had heard of BRCA1/2 testing from a source other than their physician and had sought testing because of a personal or family member's cancer diagnosis. These findings can inform predictions surrounding the introduction of future genetic susceptibility tests and strategies for guiding the further diffusion of BRCA1/2 testing.

Evaluation of a community breast screening promotion program

BACKGROUND

This study reports results of a controlled evaluation of a comprehensive community breast screening promotion program. This program promoted increased use of mammography, clinical breast examination, and breast self-examination through community organization, physician training, and public education.

METHODS

The program was conducted in one of three matched Florida study areas, with before and after assessment of breast screening behaviors, beliefs, and perceptions of women ages 40 and older. Baseline measures in 1990 were obtained by combining telephone and household survey data; follow-up measures using similar combined data were conducted with 4,096 women in 1997.

RESULTS

. There was no evidence that the breast screening promotion program achieved higher levels of screening among women ages 40 and older in the program area. Mammography use and supportive beliefs and perceptions of mammography increased in all three study areas between 1990 and 1997.

CONCLUSIONS

Among factors that may have reduced the differential impact of the program were public attention to breast cancer screening in the late 1980s throughout the U.S., effects of managed care, and limited penetration of a key program component. While the program was well received and served the community, its impact was overwhelmed by temporal trends observed in this study.