Annual Review of Public Health - Volume 29, 2008

Implementation of strategies to address obesity on a global scale has not yet begun in earnest. One key issue is uncertainty about the relative importance of taking aggressive action on the food vs. physical activity side of the energy balance equation, recognizing that interventions in both areas are critical. Using data on obesity prevalence, food availability, and selected economic and sociodemographic indicators from member countries of the Organization for Economic Cooperation and Development, an article in this volume of the Annual Review of Public Health provides estimates and projections to help resolve this uncertainty. The analyses presented support the authors' hypothesis that most of the recent rise in obesity is attributable to excess caloric intake. The implication that policies to curb overconsumption might include deliberate changes in the price structure of the food supply should stimulate debate about our current agricultural and trade paradigms, particularly because any such global policies would also affect the developing world.

We review the state of the art in work site health promotion (WHP), focusing on factors that influence the health and productivity of workers. We begin by defining WHP, then review the literature that addresses the business rationale for it, as well as the objections and barriers that may prevent sufficient investment in WHP. Despite methodological limitations in many available studies, the results in the literature suggest that, when properly designed, WHP can increase employees' health and productivity. We describe the characteristics of effective programs including their ability to assess the need for services, attract participants, use behavioral theory as a foundation, incorporate multiple ways to reach people, and make efforts to measure program impact. Promising practices are noted including senior management support for and participation in these programs. A very important challenge is widespread dissemination of information regarding success factors because only ∼7% of employers use all the program components required for successful interventions. The need for more and better science when evaluating program outcomes is highlighted. Federal initiatives that support cost-benefit or cost-effectiveness analyses are stressed, as is the need to invest in healthy work environments, to complement individual based interventions.

The increasing use of participatory research (PR) approaches to address pressing public health issues reflects PR's potential for bridging gaps between research and practice, addressing social and environmental justice and enabling people to gain control over determinants of their health. Our critical review of the PR literature culminates in the development of an integrative practice framework that features five essential domains and provides a structured process for developing and maintaining PR partnerships, designing and implementing PR efforts, and evaluating the intermediate and long-term outcomes of descriptive, etiological, and intervention PR studies. We review the empirical and nonempirical literature in the context of this practice framework to distill the key challenges and added value of PR. Advances to the practice of PR over the next decade will require establishing the effectiveness of PR in achieving health outcomes and linking PR practices, processes, and core elements to health outcomes.

This article reviews the contribution and potential of widely used health behavior theories in research designed to understand and redress the disproportionate burden of breast cancer borne by diverse race/ethnic, immigrant, and low-income groups associated with unequal use of mammography. We review the strengths and limitations of widely used theories and the extent to which theory contributes to the understanding of screening disparities and informs effective intervention. The dominant focus of most theories on individual cognition is critically assessed as the abstraction of behavior from its social context. Proposed alternatives emphasize multilevel ecological approaches and the use of anthropologic theory and methods for more culturally grounded understandings of screening behavior. Common and alternative treatments of fatalism exemplify this approach, and descriptive and intervention research exemplars further highlight the integration of screening behavior and sociocultural context.

The past few decades have seen increasing concern about the quality of nursing home (NH) care. As with other health care sectors, NHs have attempted to embrace a culture of safety, but the additional barriers that they face place the NH industry at a distinct disadvantage. In this review, we provide a summary of current models of NH quality and an overview of two important clinical areas for quality improvement: pressure ulcers and falls. Despite heavy regulation of the NH industry, hoped-for improvements in quality have been limited. We argue that systemic barriers, such as staffing shortages, NH organization, and an adversarial regulatory environment, preclude advances in NH quality.

Cost-effectiveness analysis as an aid to decision making has been increasingly publicized and discussed during the past two to three decades. However, the total body of cost-effectiveness analyses in health care is actually rather small, and high-quality studies are rather rare. Furthermore, the applications of economic analysis to health policy have been hampered by a number of problems, including those that are methodological and contextual. We consider a number of areas of public health policy but pay special attention to a growing area of inquiry and application: the overall coverage of health services. Cost-effectiveness analysis has played a relatively small role in general coverage decisions, but in recent years, it has been applied increasingly to decisions concerning pharmaceutical coverage. We speculate on concerning reasons for this particular focus in cost-effectiveness analysis. Future progress will depend heavily on discussion and consensus building.

How does health insurance affect health? After reviewing the evidence on this question, we reach three conclusions. First, many of the studies claiming to show a causal effect of health insurance on health do not do so convincingly because the observed correlation between insurance and good health may be driven by other, unobservable factors. Second, convincing evidence demonstrates that health insurance can improve health measures of some population subgroups, some of which, although not all, are the same subgroups that would be the likely targets of coverage expansion policies. Third, for policy purposes we need to know whether the results of these studies generalize. Solid answers to the multitude of important questions about how specific health insurance policy options may affect health seem likely to be forthcoming only with investment of substantial resources in social experiments.

Health care delivery systems are critical components of tobacco cessation efforts. This review summarizes recent evidence in support of the health care system recommendations in the 2000 U.S. Public Health Service Clinical Practice Guideline, Treating Tobacco Use and Dependence. Measurable progress in addressing tobacco use through the health care system is summarized, including accountabilities for addressing tobacco in national health care reporting systems, increases in reported advice to quit smoking from health care providers, and wider availability of insurance coverage for tobacco cessation treatments. Despite progress, significant gaps remain between what is possible and what is done by health care systems to impact tobacco cessation. A four-point public policy agenda is outlined to help close these gaps.