Mary Kay Hunt

Model for incorporating social context in health behavior interventions: applications for cancer prevention for working-class, multiethnic populations

BACKGROUND This article proposes a conceptual framework for addressing social contextual factors in cancer prevention interventions, and describes work that operationalizes this model in interventions for working class, multiethnic populations. METHODS The Harvard Cancer Prevention Program Project Includes Three Studies: (1) an intervention study in 25 small businesses; (2) an intervention study in 10 health centers; and (3) a computer simulation modeling project that translates risk factor modifications into gains in life expectancy and number of cancers averted. The conceptual framework guiding this work articulates pathways by which social context may influence health behaviors, and is used to frame the interventions and guide evaluation design. RESULTS Social contextual factors cut across multiple levels of influence, and include individual factors (e.g., material circumstances, psychosocial factors), interpersonal factors (e.g., social ties, roles/responsibilities, social norms), organizational factors (e.g., work organization, access to health care), and neighborhood/community factors (e.g., safety, access to grocery stores). Social context is shaped by sociodemographic characteristics (e.g., social class, race/ethnicity, gender, age, language) that impact day-to-day realities. CONCLUSIONS By illuminating the pathways by which social contextual factors influence health behaviors, it will be possible to enhance the effectiveness of interventions aimed at reducing social inequalities in risk behaviors.

Realistic Outcomes: Lessons from Community-Based Research and Demonstration Programs for the Prevention of Cardiovascular Diseases

Public health departments nation-wide are implementing community-based cardiovascular disease (CVD) prevention programs. Many such programs are turning for guidance to three research and demonstration projects: the Stanford Five City Project, the Pawtucket Heart Health Program, and the Minnesota Heart Health Program. This article summarizes some of the lessons learned in these projects and recommends strategies for the new gen- eration of CVD prevention programs.The core of a successful program is the community organization process. This involves identification and activation of key community leaders, stimulation of citizens and organizations to volunteer time and offer resources to CVD prevention, and the promotion of prevention as a community theme. A wide range of intervention settings are available for health promotion. As is true for the workplace, places of worship are receptive to health promotion programs and have access to large numbers of people. Mass media are effective when used in conjunction with complementary messages delivered through other channels, such as school programs, adult education programs, and self-help programs. Community health professionals play a vital role in providing program endorsement and stimulating the participation of other community leaders. School-based programs promote long-term behavior change and reach beyond the school to actively involve parents. In-novative health promotion contests have widespread appeal and promote participation in other community interventions.In the area of evaluation, health program participation rates are appropriate primary outcome measures in most community-oriented prevention programs. Other program evaluation priorities include community analysis and formative evaluation, providing data to fine-tune interventions and define the needs and preferences of the community.It is premature to comment conclusively on the effectiveness of community-based CVD prevention programs in reducing population risk factor levels. However, it has been demonstrated that a broad range of intervention strategies can favorably modify the health behaviors of specific groups in communities such as employees and school children.

The effects of a health promotion-health protection intervention on behavior change: the WellWorks Study

OBJECTIVES This study assessed the effects of a 2-year integrated health promotion-health protection work-site intervention on changes in dietary habits and cigarette smoking. METHODS A randomized, controlled intervention study used the work site as the unit of intervention and analysis; it included 24 predominantly manufacturing work sites in Massachusetts (250-2500 workers per site). Behaviors were assessed in self-administered surveys (n = 2386; completion rates = 61% at baseline, 62% at final). Three key intervention elements targeted health behavior change: (1) joint worker-management participation in program planning and implementation, (2) consultation with management on work-site environmental changes, and (3) health education programs. RESULTS Significant differences between intervention and control work sites included reductions in the percentage of calories consumed as fat (2.3% vs 1.5% kcal) and increases in servings of fruit and vegetables (10% vs 4% increase). The intervention had a significant effect on fiber consumption among skilled and unskilled laborers. No significant effects were observed for smoking cessation. CONCLUSIONS Although the size of the effects of this intervention are modest, on a populationwide basis effects of this size could have a large impact on cancer-related and coronary heart disease end points.

A comprehensive worksite cancer prevention intervention: behavior change results from a randomized controlled trial (United States)

Objective: Workplace cancer prevention initiatives have been least successful with blue-collar workers. This study assesses whether an intervention integrating health promotion with occupational health and safety results in significant and meaningful increases in smoking cessation and consumption of fruits and vegetables, compared to a standard health promotion intervention, for workers overall and for blue-collar workers in particular. Methods: A randomized controlled design was used, with 15 manufacturing worksites assigned to a health promotion (HP) or a health promotion plus occupational health and safety intervention (HP/OHS), and compared from baseline (1997) to final (1999). The response rates to the survey were 80% at baseline (n = 9019) and 65% at final (n = 7327). Both groups targeted smoking and diet; the HP/OHS condition additionally incorporated reduction of occupational exposures. Results: Smoking quit rates among blue-collar workers in the HP/OHS condition more than doubled relative to those in the HP condition (OR = 2.13, p = 0.04), and were comparable to quit rates of white-collar workers. No statistically significant differences between groups were found for mean changes in fruits and vegetables. Conclusions: Integration of occupational health and safety and health promotion may be an essential means of enhancing the effectiveness of worksite tobacco control initiatives with blue-collar workers.

Promoting Behavior Change Among Working-Class, Multiethnic Workers: Results of the Healthy Directions—Small Business Study

OBJECTIVES We examined the efficacy of a cancer prevention intervention designed to improve health behaviors among working-class, multiethnic populations employed in small manufacturing businesses. METHODS Worksites were randomly assigned to an intervention or minimal-intervention control condition. The intervention targeted fruit and vegetable consumption, red meat consumption, multivitamin use, and physical activity. RESULTS Employees in the intervention group showed greater improvements for every outcome compared with employees in the control group. Differences in improvement were statistically significant for multivitamin use and physical activity. Intervention effects were larger among workers than among managers for fruit and vegetable consumption and for physical activity. CONCLUSIONS The social-context model holds promise for reducing disparities in health behaviors. Further research is needed to improve the effectiveness of the intervention.

Work-site nutrition intervention and employees' dietary habits: the Treatwell program

In a randomized, controlled study of the Treatwell work-site nutrition intervention program, which focused on promoting eating patterns low in fat and high in fiber, 16 work sites from Massachusetts and Rhode Island were recruited to participate and randomly assigned to either an intervention or a control condition. The intervention included direct education and environmental programming tailored to each work site; control work sites received no intervention. A cohort of workers randomly sampled from each site was surveyed both prior to and following the intervention. Dietary patterns were assessed using a semiquantitative food frequency questionnaire. Adjusting for work site, the decrease in mean dietary fat intake was 1.1% of total calories more in intervention sites than in control sites (P less than .005). Mean changes in dietary fiber intake between intervention and control sites did not differ. This study provides evidence that a work-site nutrition intervention program can effectively influence the dietary habits of workers.

Tools for health: the efficacy of a tailored intervention targeted for construction laborers.

ObjectivesNovel approaches to worksite health promotion are needed for high-risk workers who change job sites frequently, and thus may have limited access to worksite health promotion efforts. The objective of this study was to test a behavioral intervention among construction laborers.MethodsUsing a randomized-controlled design, we tested the efficacy of a tailored telephone-delivered and mailed intervention to promote smoking cessation and increased fruit and vegetable consumption (n = 582).ResultsAt baseline, 40% of control group participants and 45% of intervention group participants reported using any tobacco in the last seven days. At final, 8% of baseline cigarette smokers in the control group had quit, compared to 19% in the intervention group (p = 0.03). In both groups, the mean consumption of fruits and vegetables at baseline was over five servings per day. At final, the intervention group had increased consumption by approximately one and one-half servings, compared to a slight decrease in consumption in the control group (p < 0.001).ConclusionsA tailored intervention can be efficacious in promoting tobacco use cessation and increased fruit and vegetable consumption among construction laborers, a high-risk, mobile workforce.

A comprehensive worksite cancer prevention intervention: behavior change results from a randomized controlled trial (United States).

Objective: Workplace cancer prevention initiatives have been least successful with blue-collar workers. This study assesses whether an intervention integrating health promotion with occupational health and safety results in significant and meaningful increases in smoking cessation and consumption of fruits and vegetables, compared to a standard health promotion intervention, for workers overall and for blue-collar workers in particular.Methods: A randomized controlled design was used, with 15 manufacturing worksites assigned to a health promotion (HP) or a health promotion plus occupational health and safety intervention (HP/OHS), and compared from baseline (1997) to final (1999). The response rates to the survey were 80% at baseline (n = 9019) and 65% at final (n = 7327). Both groups targeted smoking and diet; the HP/OHS condition additionally incorporated reduction of occupational exposures.Results: Smoking quit rates among blue-collar workers in the HP/OHS condition more than doubled relative to those in the HP condition (OR=2.13, p=0.04), and were comparable to quit rates of white-collar workers. No statistically significant differences between groups were found for mean changes in fruits and vegetables.Conclusions: Integration of occupational health and safety and health promotion may be an essential means of enhancing the effectiveness of worksite tobacco control initiatives with blue-collar workers.

The Life History Interview Method: Applications to Intervention Development:

There is an urgent need to develop and test health promotion strategies that both address health disparities and elucidate the full impact of social, cultural, economic, institutional, and political elements on peoples lives. Qualitative research methods, such as life history interviewing, are well suited to exploring these factors. Qualitative methods are also helpful for preparing field staff to implement a social contextual approach to health pro-motion. This article reports results and application of findings of life history interviews conducted as part of intervention planning for the Harvard Cancer Prevention Program Project, “Cancer Prevention in Working-Class, Multi-Ethnic Populations.” The salient themes that emerged from interviews with a multi-ethnic, purposive sample are centered on six construct domains: immigration and social status, social support, stress, food, physical activity, and occupational health. Insights gained from thematic analysis of the interviews were integrated throughout intervention and materials development processes.

Cancer prevention for working class, multiethnic populations through small businesses: the healthy directions study

Objective: We report demographic and social contextual characteristics of multiethnic, blue-collar workers from the baseline survey of a study conducted in 24 small businesses. We discuss ways in which we incorporated these characteristics into the design of the intervention. Methods: We used a randomized controled design, with 12 small businesses assigned to a social contextual intervention and 12 to a minimum intervention control condition. The response rates to the survey were 84% at baseline (n = 1717). Primary outcomes included reduction in red meat consumption and increase in physical activity and daily multivitamin intake. Secondary outcomes targeted reduction in smoking and occupational exposures. Results: The majority of the respondents were male (67.6%). This was an ethnically diverse sample with 24.7% representing racial/ethnic groups other than white and 43.6% of participants or their parents born outside of the US. To meet study recommendations, workers needed improvement in all behaviors measured. Participants reported a smoking rate of 25.8, 86.2% ate fewer than 5 servings of fruits and vegetables a day 69.5% ate more than three servings of red meat a week, 46.8% engaged in less than 2.5h a week and 72.4% reported that they did not consume a daily multivitamin. Conclusions: Interventions that address the contextual environment in which health behaviors occur, may provide a method that researchers and practitioners can use to reduce health disparities.