Chronic disease: A disease that persists for a long time. A chronic disease is one lasting 3 months or more, by the definition of the U.S. National Center for Health Statistics. Chronic diseases generally cannot be prevented by vaccines or cured by medication, nor do they just disappear. Eighty-eight percent of Americans over 65 years of age have at least one chronic health condition (as of 1998). Health damaging behaviors - particularly tobacco use, lack of physical activity, and poor eating habits - are major contributors to the leading chronic diseases.
Chronic diseases tend to become more common with age. The leading chronic diseases in developed countries include (in alphabetical order) arthritis, cardiovascular disease such as heart attacks and stroke, cancer such as breast and colon cancer, diabetes, epilepsy and seizures, obesity, and oral health problems. Each of these conditions plague older adults in the US (and other developed nations).
Arthritis and related conditions are the leading cause of disability in the US affecting nearly 43 million Americans. Although cost-effective interventions are available to reduce the burden of arthritis, they are underused. Regular, moderate exercise offers a host of benefits to people with arthritis by reducing joint pain and stiffness, building strong muscle around the joints, and increasing flexibility and endurance.
Cardiovascular disease is a growing concern in the US. Heart disease is the nation's leading cause of death. Three health-related behaviors--tobacco use, lack of physical activity, and poor nutrition--contribute markedly to heart disease. Modifying these behaviors is critical for both preventing and controlling heart disease. Modest changes in one or more of these risk factors among the population could have a profound public health impact.
Cancer is the second most common cause of death in the US. Cancer is largely controllable through prevention, early detection, and treatment. Reducing the nation's cancer burden requires reducing the prevalence of the behavioral and environmental factors that increase cancer risk. It also requires ensuring that cancer screening services and high-quality treatment are available and accessible, particularly to medically underserved populations.
- Colorectal cancer is the second leading cause of cancer-related
deaths in the US, accounting for 10% of all cancer deaths. The risk of
developing colorectal cancer increases with advancing age. Lack of physical
activity, low fruit and vegetable intake, a low-fiber diet, obesity, alcohol
consumption, and tobacco use may contribute to the risk for colorectal
Three screening tools flexible sigmoidoscopy, colonoscopy, and the fecal occult blood test (FOBT) are widely accepted and used to detect colorectal cancer in its earliest stages, when treatment is most effective. In 1999, 66% of Americans aged 50 years or older reported not having had a sigmoidoscopy or colonoscopy within the last five years, and 79% reported not having had a fecal occult blood test within the last year.
- Breast cancer is best detected in its earliest, most treatable stage by mammography. Seventy-six percent of all diagnosed cases of breast cancer are among women aged 50 years or older.
Diabetes is a serious, costly, and increasingly common chronic disease. Early detection, improved delivery of care, and better self-management are the key strategies for preventing much of the burden of diabetes. Seven million persons aged 65 years or older (20.1% of all people in this age group) have diabetes, most of them type 2 diabetes.
Epilepsy and seizures affect about 2.3 million Americans, and result in an estimated $12.5 billion in medical costs and lost or reduced earnings and production annually in the US. People of all ages are affected, but particularly the very young and the elderly. About 10% of Americans will experience a seizure, and about 3% will have or will have had a diagnosis of epilepsy by age 80.
Obesity has reached epidemic proportions among Americans in all age groups. Obesity among adults has doubled since 1980. People who are obese or overweight are at increased risk for heart disease, high blood pressure, diabetes, arthritis-related disabilities, and some cancers.
Oral health problems are an important and often overlooked component of an older adult's general health and well-being. Oral health problems can cause pain and suffering as well as difficulty in speaking, chewing, swallowing, and maintaining a nutritious diet.
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