In the United States, chronic illnesses such as heart disease, cancer, diabetes, stroke, and chronic lung disease account for 70% of deaths and 75% of health care costs (
In addition to highlighting the fatal consequences of chronic illness, the IOM report emphasizes their many nonfatal consequences. For example, 8.6 million Americans report living with disabilities related to arthritis (
The IOM report highlights 9 chronic illnesses — arthritis, cancer survivorship, chronic pain, dementia, depression, diabetes, posttraumatic disabling conditions, schizophrenia, and vision and hearing loss. This list is not intended to indicate the most important chronic illnesses but is a means of illustrating their diverse sequelae, including emotional distress, sleep and pain symptoms, physical impairments, and age-related degenerative problems, all of which detract from living well. The report indicates that illnesses tend to cluster: among older adults, 43% have 3 or more illnesses (
Surveillance for chronic illnesses and their outcomes is critical to identifying needs and disparities, setting priorities for action, and assessing programmatic progress. The report recommends that surveillance be enhanced and that it be multilevel, multistage, and longitudinal. Levels are patient, health care system, population, and policy. Stages are the precursors of chronic illness, such as social determinants, biological risk factors, lifestyles, and receipt of evidence-based preventive interventions; illness occurrence and manifestations; and illness consequences, including physical, mental, and social. Longitudinal surveillance of chronically ill people will allow better assessment of both community-based and health care interventions, enabling more sophisticated analyses of what works. Supplementing current population surveys with information from electronic health records should produce more precise assessments of trends in improving quality of life for people living with chronic illness.
The intervention section of the report reinforces the preventive needs of people with chronic illnesses. In general, people who are chronically ill need all of the preventive services recommended for people who are not chronically ill, such as disease screening, immunizations, and lifestyle interventions to promote healthful eating, physical activity, smoking cessation, and weight maintenance. Preventive interventions for certain illnesses are paramount: for example, physical activity is important for people with arthritis to maximize their mobility and diminish disabling symptoms. Among lifestyle interventions, the benefits of physical activity for people with chronic illness are best documented. The IOM report cites physical activity trials that have shown decreased symptoms, improved functioning, or both in people with arthritis, cancer, depression, and diabetes (
Public health programs and health systems need to promote community-based care, including chronic illness self-management and professionally driven disease management (eg, nurse help lines), cognitive training, and complementary and alternative medicine. There are promising reports for all of the community-based care methods, but more research is needed on how to adapt them to illnesses while meeting broad community goals cost-effectively.
Given the availability of both effective preventive interventions and effective community-based care, the next challenge is scaling up so that effective interventions reach all people in need, especially disadvantaged populations disproportionately affected by chronic illness. The IOM report calls for public health programs to be evaluated for their ability to reach people with chronic illness and deliver effective community-based interventions to them.
Public policies are critical to optimizing function and independence of the chronically ill, particularly those who are most disadvantaged in terms of income and disability. The report outlines decades of social policies and programs that lay a foundation on which to build, including support for income, medical care, and social services for the disabled, elderly, and vulnerable. One example is the Americans with Disabilities Act, which mandates accommodations for and nondiscrimination against people with disabilities. The Affordable Care Act (ACA), a more recent example, has broad implications for the chronically ill. For example, the ACA broadens health insurance coverage through Medicaid expansion, limits the impact of preexisting conditions on care costs, and promotes both coordination of care and preventive care. The report recommends a “health in all policies” approach that evaluates the effect on health and chronic illnesses of major policies in nonhealth sectors, such as agriculture, transportation, and housing. The report also calls for improved methods for economic evaluation of community interventions by both public health organizations and health care organizations.
Public health action to promote living well with chronic illness requires coordinated efforts in both health care and community-based settings. Most care for chronic illness occurs in health care settings. Because most of life happens outside of this realm, even for people living with chronic illness, there is great potential to leverage the infrastructure of community-based settings for both lifestyle interventions and community-based care. Many lifestyle programs have been developed and implemented in community-based settings such as worksites and by community-based service providers such as senior centers and YMCAs. These programs have often targeted the well rather than the chronically ill and have focused more on promoting healthy lifestyles than on community-based care. Policies and models that coordinate activities in both health care and community-based settings are largely untested (
The IOM report reinforces the idea that the public health needs of the chronically ill are large, urgent, and growing and, therefore, have implications for governmental public health organizations, including CDC. In the 25 years since the creation of CDC’s National Center for Chronic Disease Prevention and Health Promotion, chronic illness prevention programs have become universal in state health departments (
While preparing this essay, Dr Harris received support from the University of Washington Health Promotion Research Center, one of the CDC Prevention Research Centers (HPRC cooperative agreement no. U48 DP001911-01).
The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions.