Special Populations Networks: themes and lessons learned

Informed consent for biobanking research: cancer patient recruitment from rural communities in Maine

Biobanking research seeks to improve the diversity, availability, and quality of human specimens critical for translational research, including biospecimen collections from disadvantaged minorities. American rural whites are seldom represented in such initiatives as geographic isolation makes obtaining informed consent challenging. We report a case series of 83 newly diagnosed cancer patients, attending a rural community medical center, who consented to participate in cancer research. To enable pooling with population studies, we created a BioGeoBank using 2007 NCI and ISBER Best Practices, after a protocol approval by Eastern Maine Medical Center (EMMC) IRB and OHP HRPO. Informed consent forms were at Flesch-Kincaid 8th Grade reading level, supplemented by NCI educational brochures. Of 108 patients identified, 85 were eligible. Of these, 83 patients (49 lung cancer, 21 breast cancer, and 13 other cancers) consented to donate data, blood, and tissue specimens for future research, and maintained eligibility. Two years later, we executed a legacy protocol to transfer specimens to NCI's biorepository. Of the 69 surviving patients, 9 patients could not be contacted. All those contacted (60) agreed to provide additional data on environmental risks, and consented to specimen transfer. Self-organizing map analyses showed no evidence that age, education, income, familial susceptibility, or lifestyle factors were associated with consent to donate data or biospecimens. Cancer cases reported 1-3 co-morbid chronic diseases (mostly cardiovascular), near lifetime smoking and/or alcohol consumption; familial cancer risks, and many had a prior cancer history. Anecdotally, willingness to consent was based on altruistic hopes that research would generate knowledge to reduce cancer incidence. Our study shows that cancer patients from disadvantaged white rural communities with health disparities associated with geographic isolation are motivated to consent to participate and support biobank research.

Establishing a professional profile of community health workers: results from a national study of roles, activities and training

Community Health Workers (CHWs) have gained national recognition for their role in addressing health disparities and are increasingly integrated into the health care delivery system. There is a lack of consensus, however, regarding empirical evidence on the impact of CHW interventions on health outcomes. In this paper, we present results from the 2010 National Community Health Worker Advocacy Survey (NCHWAS) in an effort to strengthen a generalized understanding of the CHW profession that can be integrated into ongoing efforts to improve the health care delivery system. Results indicate that regardless of geographical location, work setting, and demographic characteristics, CHWs generally share similar professional characteristics, training preparation, and job activities. CHWs are likely to be female, representative of the community they serve, and to work in community health centers, clinics, community-based organizations, and health departments. The most common type of training is on-the-job and conference training. Most CHWs work with clients, groups, other CHWs and less frequently community leaders to address health issues, the most common of which are chronic disease, prevention and health care access. Descriptions of CHW activities documented in the survey demonstrate that CHWs apply core competencies in a synergistic manner in an effort to assure that their clients get the services they need. NCHWAS findings suggest that over the past 50 years, the CHW field has become standardized in response to the unmet needs of their communities. In research and practice, the field would benefit from being considered a health profession rather than an intervention.

Addressing cancer disparities via community network mobilization and intersectoral partnerships: a social network analysis

Community mobilization and collaboration among diverse partners are vital components of the effort to reduce and eliminate cancer disparities in the United States. We studied the development and impact of intersectoral connections among the members of the Massachusetts Community Network for Cancer Education, Research, and Training (MassCONECT). As one of the Community Network Program sites funded by the National Cancer Institute, this infrastructure-building initiative utilized principles of Community-based Participatory Research (CBPR) to unite community coalitions, researchers, policymakers, and other important stakeholders to address cancer disparities in three Massachusetts communities: Boston, Lawrence, and Worcester. We conducted a cross-sectional, sociometric network analysis four years after the network was formed. A total of 38 of 55 members participated in the study (69% response rate). Over four years of collaboration, the number of intersectoral connections reported by members (intersectoral out-degree) increased, as did the extent to which such connections were reported reciprocally (intersectoral reciprocity). We assessed relationships between these markers of intersectoral collaboration and three intermediate outcomes in the effort to reduce and eliminate cancer disparities: delivery of community activities, policy engagement, and grants/publications. We found a positive and statistically significant relationship between intersectoral out-degree and community activities and policy engagement (the relationship was borderline significant for grants/publications). We found a positive and statistically significant relationship between intersectoral reciprocity and community activities and grants/publications (the relationship was borderline significant for policy engagement). The study suggests that intersectoral connections may be important drivers of diverse intermediate outcomes in the effort to reduce and eliminate cancer disparities. The findings support investment in infrastructure-building and intersectoral mobilization in addressing disparities and highlight the benefits of using CBPR approaches for such work.

The Impact of Community Health Workers on Behavioral Outcomes and Glycemic Control of Diabetes Patients on the U.S.-Mexico Border

This study attempts to determine the impact of Community Health Workers ( promotoras de salud) on the self-management practices of people with diabetes on the U.S.-Mexico Border. The region has higher incidence rates of type 2 diabetes than the nation as a whole due to its Mexican-American population, an ethnic group genetically vulnerable to the disease. Unlike prior research that investigated the overall effectiveness of the CHWs, this study monitored a wide range of biologic (HbA1c, BMI) and behavioral (diabetes knowledge, self-efficacy, self-management activities scores) outcomes among the diabetes patients. The experimental research design tested whether or not the monthly visits by CHWs to the diabetic patients helped them in controlling their disease. The sample ( N = 30) was recruited from Mexican-American diabetes patients aged 30 or above. The intervention group received monthly visits from CHWs, while the control group did not. The intervention group showed a significant improvement after 2 years of intervention in all outcomes, except Body Mass Index (BMI).

A network assessment of community-based participatory research: linking communities and universities to reduce cancer disparities

OBJECTIVES

We sought to determine whether a community-based initiative designed to reduce cancer disparities among Pacific Islanders in Southern California increased communications between community-based organizations and university researchers.

METHODS

We conducted network analysis among 11 community-based organizations (CBOs) and 5 universities by interviewing 91 and 56 members of these organizations, respectively, at 2 points in time. We estimated random effects probit regression and stochastic actor-oriented network dynamic models.

RESULTS

We found that, during the 2-year study period, CBOs increased their connectedness with one another (b= 0.44; P < .05) and to the universities (b = 0.46; P < .05), but that university researchers did not increase their connectedness to each other or to CBOs.

CONCLUSIONS

Cancer awareness, cancer education, and access to cancer services are low among Pacific Island groups, and this study provides an initial attempt to reduce these disparities. Community-based initiatives can strengthen a CBO network, creating the potential for increased community-informed cancer research and improved community access to cancer research resources.

Cancer outcomes research in a rural area: a multi-institution partnership model

Whereas, most cancer research data come from high-profile academic centers, little is known about the outcomes of cancer care in rural communities. We summarize the experience of building a multi-institution partnership to develop a cancer outcomes research infrastructure in Southwest Georgia (SWGA), a primarily rural 33-county area with over 700,000 residents. The partnership includes eight institutions: the Emory University in Atlanta, the Centers for Disease Control and Prevention (CDC), the Georgia Comprehensive Center Registry (the Registry), the Southwest Georgia Cancer Coalition (the Coalition), and the four community cancer centers located within the SWGA region. The practical application of the partnership model, its organizational structure, and lessons learned are presented using two specific examples: a study evaluating treatment decisions and quality of life among prostate cancer patients, and a study of treatment discontinuation among prostate, breast, lung, and colorectal cancer patients. Our partnership model allowed us to (1) use the Coalition as a link between Atlanta-based researchers and local community; (2) collaborate with the area cancer centers on day-to-day study activities; (3) involve the Registry personnel and resources to identify eligible cancer cases and to perform data collection; and (4) raise community awareness and sense of study ownership through media announcements organized by the Coalition. All of the above activities were performed in consultation with the funding institution (CDC) and its project directors who oversee several other studies addressing similar research questions throughout the country. Our partnership model may provide a useful framework for cancer outcomes research projects in rural communities.