Data updated for 2001
UNITED STATES OF AMERICA
GENERAL SITUATION AND TRENDS
Socioeconomic, Political, and Demographic Overview
The health situation of United States residents has improved in the last 10 years. Between 1990 and 1995, overall life expectancy at birth increased from 75.4 years to 75.8 years. Life expectancy at birth was much higher for white males (73.4) than for African-American males (65.4); the gap is shrinking, however. Increases in life expectancy in the 1990s were 0.7 years for white males and 0.9 years for African-American males. The difference in life expectancy at birth for white and African-American females was 5.6 years. The 1990–1994 data are final, but 1995 data are preliminary and therefore subject to change.
An estimated 36 million people were living in poverty in 1995. The national poverty rate was 13.8% in 1995, compared with 15.1% in 1993. The poverty rate among African-Americans, the largest minority group, was 29.3%—nearly triple the rate among the white population.
The resident population of the United States totaled 263 million in 1995, a 6% increase over the 1990 population. Between 1990 and 1995, the population 75–84 years of age grew by 11% to 11 million, and the population 85 years and older grew by 20% to 3.6 million. The African-American population increased by 8%, to 33 million, and the Hispanic population increased by 20%, to 27 million. The Asian and Pacific Islander population grew by 24%, reaching 9 million persons.
Mortality Profile
In 1995, an estimated 2,312,180 deaths were registered in the United States, a rate of 880.0 deaths per 100,000 population. This was 0.5% above the rate of 875.4 per 100,000 in 1994 and the same as the rate in 1993. The age-adjusted death rate in 1995 for all causes combined was about 70% higher for males than for females. For each of the 15 leading causes of death, male mortality was also higher. The greatest differential between genders was seen for HIV infection, where the age-adjusted rate for males was 5.1 times that for females. The smallest sex differential was for diabetes mellitus, with a male-to-female ratio of 1:1.
During the 1990s there were major declines in rates for three of the leading causes of death: heart disease, stroke, and unintentional injuries. Much of the decrease can be attributed to the reduction in risk factors that cause illness. Between 1990 and 1995, the age-adjusted death rate for heart disease, the leading cause of death, declined 9.1%. The decline in heart disease mortality since 1990 was 10.8 % for white men, 7.5% for white women, and 9.7% for African-American men and women. In 1995, heart disease mortality for white men was almost double that for white women; it was more than 64% higher among African-American men than African-American women. In 1993, the age-adjusted death rate for heart disease among males of Asian descent aged 45 years and over (107.6 deaths per 100,000 population) was about 17% lower than the rate for Hispanics, 3.8% lower than the rate for American Indians, 77% lower than for whites, and 149% lower than the rate for African-Americans. Deaths among white women due to lung cancer showed a 5.8% increase between 1990 and 1995. Death rates from this disease decreased for African-American men by 14.5% and for white men by 8.7%. In 1995, age-adjusted lung cancer death rates for African-American men and white men (73.7 and 51.7 deaths per 100,000, respectively) were two to three times those for African-American women and white women (26.1 and 27.4, respectively). The age-adjusted death rate from stroke, the third leading cause of death, declined by 3.6% between 1990 and 1995, continuing the downward trend of the 1980s. Declines in stroke mortality since 1980 ranged from 34.1% for African-American men to 36.8% for white men. In 1995, age-adjusted death rates due to stroke were almost twice as high for African-American men as for white men, and 69.4 % higher for African-American women than for white women.
Cancer has surpassed heart disease as the leading cause of death for people 45–64 years of age since 1984. In 1995, cancer resulted in 252.5 deaths per 100,000 persons in this age group. Breast cancer rates remain high despite the attention paid to early detection and treatment.
SPECIFIC HEALTH PROBLEMS
Analysis by Population Group
Health of Infants
The infant mortality rate in 1995 was 7.5 deaths per 1,000 live births. Between 1990 and 1995, the infant mortality rate for white infants declined by 17.1%, from 7.6 to 6.3 deaths per 1,000 live births; for African-American infants, it declined by 17.2%, from 18.0 to 14.8. These declines resulted in record low infant mortality rates in the U.S.
In 1994, almost 32,000 infants—about 0.75% of those born—died before reaching 1 year of age. The five leading causes of death in 1995 were congenital anomalies, disorders relating to short gestation and unspecified low birthweight, sudden infant death syndrome, respiratory distress syndrome, and maternal complications of pregnancy.
The overall percentage of live-born infants weighing less than 2,500 g was 7.3% in 1994, up from 7.2% in 1993. The proportion of infants weighing less that 1,500 g at birth (those at greatest risk of death and disability) was stable at 1.3%. In 1994, the percentage of African-American infants weighing less than 1,500 g was three times that of white infants (3.0% as compared with 1.0%).
The spread of HIV/AIDS among women and heterosexual men has resulted in increasing numbers of seropositive newborns. Infants born with HIV infection require more intensive health care services throughout their lives. Through June 1996, AIDS was reported in more than 6,900 children under 13 years old.
Health of Children and Adolescents
The coverage rates for DPT, polio, and measles immunizations given between 19 months and 35 months of age were 90%, 79%, and 90%, respectively, in 1994. This represents some improvement over 1992, when the coverage rates were 83% for DPT, 72% for polio, and 83% for measles. Nonetheless, the 1994 level of immunization coverage is lower than in many other countries, including many developing countries. Outbreaks of communicable diseases still occur throughout the United States, indicating that vaccination programs have not adequately reached many children, especially in rural and inner city areas. Nevertheless, other than an increase in the number of measles cases between 1989 and 1990, especially among preschoolers, there have been no major outbreaks or epidemics of vaccine-preventable diseases in recent years.
Over 42% of all childhood deaths are due to unintentional injuries, and about 30% of these occur as a result of motor vehicle accidents.
Among teenagers, the three leading causes of death are unintentional injuries, homicide, and suicide. The suicide rate for American Indian males 15–24 years of age (31.6 deaths per 100,000 population in 1993) was one-third higher than the rate for white youths, 57% higher than the rate for African-American youth, 74% higher than for Hispanic youth, and 150% higher than the rate for Asian youth.
Studies indicate that in the United States, the average age at first sexual intercourse is 16 years, putting high school students at risk for acquiring HIV infection. Through June 1996, there were 2,463 reported cases of AIDS among adolescents (13–19 years of age); and 94,414 among 20–29 year olds. Because the time from infection with HIV to development of AIDS can be 10 years or more, many people with AIDS who are in their twenties were infected as teenagers. The proportion of adolescent AIDS cases diagnosed among females peaked in 1994 (43%) and declined to 40% in 1995.
Mental retardation, learning disabilities, and emotional and behavioral problems are other threats to child health. These conditions seem to be more prevalent among children living in poverty than among children in higher socioeconomic situations.
Health of Adults
In 1994, the fertility rate was 66.7 live births per 1,000 women 15–44 years of age, 1% lower than the rate of 67.6 in 1993, and 6% lower than in 1990 (70.9). There were 3,952,767 babies born in 1994, 1% fewer than in 1993. Preliminary data for 1995 indicate births continued to decline by about 1%.
Fertility rates for women of Hispanic origin declined 1% in 1994 to 105.6 per 1,000. Preliminary data indicate that the 1995 rate (103.7) is the lowest since national data on Hispanic fertility became available in 1989. Despite the decline, Hispanic women in 1994 continued to have much higher fertility than non-Hispanic white women at all ages. For example, the birth rate for Hispanic teenagers was 107.7, compared with 40.4 for non-Hispanic white teenagers.
AIDS is the third leading cause of death among women aged 2–44 years. The number of AIDS cases due to heterosexual transmission of the virus to women increased by 165% between 1992 and 1993, partly because of the inclusion of gynecological conditions as markers in the AIDS case definition in 1993; from 1993 to 1995 the number of cases due to heterosexual transmission declined by 14%. Although African-American and Hispanic women make up only 22% of the female population, 74% of the women diagnosed with AIDS since 1981 belong to these ethnic groups.
In 1995, 64.2% of women between 15 and 44 years of age were using some form of contraceptive. Data for 1994 show that the abortion rate was 321 abortions per 1,000 live births, down from 345 in 1990. The abortion rate is 21 per 1,000 women in the age group 15–44. This rate remained stable from 1980–1991, and has recorded moderate but consistent annual declines since 1991.
Health of the Elderly
The aging of the population is one of the greatest challenges facing the health care system in the United States. By the year 2000, it is projected that the number of people 65 years and over will rise to 35 million, accounting for 13% of the population. That proportion is expected to climb as high as 23% by the year 2040. Most significant, however, is the rapid growth of the population 85 years of age and over, whose numbers are expected to rise 52%, to 4.6 million by the year 2000. As a result, a considerable increase will be seen in such disabling conditions as hip fractures and Alzheimer’s disease.Heart disease, cancer, stroke, pneumonia/influenza, chronic obstructive pulmonary disease, and diabetes are the major causes of death among persons aged 65 and older. Because pneumococcal disease is three times more prevalent among those older than 65, immunization for older adults is considered a priority preventive service.
Problems such as arthritis, visual and hearing impairments, osteoporosis, incontinence, and dementia also have significant impact on the lives of seniors. Health promotion offers major benefits toward maintaining the health of the elderly. Physical activity and proper diet can increase bone mineral content, reduce the risk for osteoporotic fractures, and help maintain appropriate body weight.
Health of Special Populations
Growth has been much faster among racial/ethnic minority populations than the majority white population over the past two decades, a trend that is expected to continue for at least the next 30 years. It is projected that the African-American population will increase 35% from 1990 to the year 2020, while the population of other minority groups (mostly Asians and Pacific Islanders, but also American Indian/Alaska Natives) will more than double. The Hispanic population is expected to rise by 84%. The projected increase in the white population during this period is only 11%.
While chronic disease conditions are the leading causes of death for both minority and nonminority persons over 45 years of age, minority populations (African-Americans, Hispanics, Native Americans, and Asian American/Pacific Islanders) incur a disproportionate share of death, illness, disability, and adverse health conditions. Commonly used health indicators such as life expectancy at birth and infant mortality rates show continued widening of the health gap between minority and majority populations. Poverty is a major contributing factor to the disparities in health status.
African-Americans. African-Americans are the largest minority group, comprising 12% of the nation’s population. Although African-Americans live in all parts of the country and occupy every socioeconomic level, one-half of their population lives in urban areas that are typified by poverty, poor schools, and inadequate housing, and one-third of the population lives in poverty—a rate three times that of whites.
Death rates among African-Americans exceed those of the white population by 58.8%. Rates are also higher for most of the leading causes of death. Homicide continues to be responsible for the greatest rate differential between the races. The age-adjusted death rate due to homicide in the African-American population in 1995 was about six times higher than in the white population, and it was the leading cause of death among African-Americans 15–24 years of age. Age-adjusted death rates for chronic diseases are one-third to nearly three times higher in the African-American population than in the white population. The death rates for colorectal, respiratory, and breast cancer among the African-American population have decreased in the 1990s, as they have among the white population. The three leading causes of death for which rates were lower among African-Americans than among whites were chronic obstructive pulmonary diseases and allied conditions, suicide, and Alzheimer’s disease.
Hispanics. The Hispanic population is the second largest and fastest growing minority group. Hispanic subgroups comprised about 10% of the total population in 1995, while their birth rate was 25.5 births per 1,000 population in 1994.
Tobacco use poses a substantial risk to the health of Hispanics, since 43% of Hispanic men currently smoke and teenagers of both sexes smoke more than African-American or white teenagers. Hispanic teenagers also report more frequent use of alcohol than African-Americans and whites.
Asians and Pacific Islanders. Speaking more than 30 different languages and representing many cultural groups, Asians and Pacific Islanders are the nation’s third largest minority. Asians who have been established in the United States for generations are virtually indistinguishable socioeconomically from the majority population, and their median income is higher than that of the overall population.
Local studies have identified certain diseases that pose special health risks for Asian Americans and Pacific Islanders. The lung cancer rate is 18% greater for Southeast Asian men than for white men. Higher rates of high blood pressure have been documented among Filipino men ages 50 and older living in California than among the total California population. Tuberculosis and hepatitis B are of particular concern in immigrant communities. Rates for these conditions among Southeast Asian immigrants are 40 times higher than those in the total population.
Native Americans. The Native American Indian and Alaska Natives form the smallest minority group, numbering 2.1 million. About 50% live in urban areas, while many of the rest live on reservations. Health care for this native population is provided by the federal government through the Indian Health Service.
This population is relatively youthful, because large proportions of Native Americans die before 45 years of age and because of a relatively high level of fertility. Age-adjusted death rates for diabetes, liver disease, and tuberculosis are two to three times higher among Native Americans than comparable rates for the total U.S. population.
The major cause of death among Native Americans under the age of 45 is unintentional injuries, which most often follow alcohol use (75%). The injury death rate for American Indians 15–24 years of age is two to three times higher than the rate for any other group. More than half (54%) of the motor vehicle accidents in this population have been attributed to the effects of alcohol. Alcoholism is the leading health and social problem of the American Indian and Alaska Native people. The 1992 age-adjusted death rate for alcohol-induced causes among American Indians and Alaska Natives was 38.4 deaths per 100,000 population—5.6 times the rate for the total population (6.8 deaths per 100,000).
Refugees. In 1995, approximately 131,300 refugees were admitted to the United States. Of these, 34% came from Eastern Europe and the former Soviet Union, 28% from East Asia, 3% from the Near East, 30% from Latin America and the Caribbean, and 3% from Africa. The number of refugees entering the United States in fiscal year 1995 represents a decrease of 9% from the number who entered the country in 1992. The number of refugees and entrants from Latin America and the Caribbean increased by 131% in the same period.
Upon arrival in this country, refugee reception and initial placement is the responsibility of 12 nonprofit organizations that operate through federally funded cooperative agreements with the Department of State. Thereafter, the refugees receive assistance from state programs funded by the Department of Health and Human Services.
Because refugees often have health problems that stem from the conditions in their countries of origin, health care services are offered in first-asylum camps located in refugee processing centers. At ports of entry, refugees and their medical records are inspected by quarantine officers who also notify the appropriate state and local health departments of their arrival. Health services are provided by the Refugee Resettlement Program for all refugees who meet a means test.
People with Disabilities. In the United States, more than 49 million people have physical and mental disabilities. For these individuals, disability affects all aspects of their well-being, and has emotional, social, and financial consequences. In 1994–1995, the National Center for Health Statistics conducted the first-ever comprehensive national disability survey in this country. The survey found that the prevalence of disabilities is disproportionately higher among minority, elderly, poor, and rural populations.
In fiscal year 1997, the Department of Health and Human Services devoted over US$ 62 billion to programs for people with disabilities.
Medicare and Medicaid, the Government’s largest public financing programs, in 1997 provided health insurance to about 12 million individuals considered to be disabled based on federal criteria. Spending during fiscal year 1997 is estimated at US$ 21 billion for health care and services under Medicare, and the Government is expected to make US$ 33 billion in Medicaid payments.
The Department of Health and Human Services supports and conducts a wide array of research activities on service organization and delivery, quality, and financing of health and long-term care for people with disabilities.
The lack of knowledge about the health needs of women with disabilities resulting from chronic physical impairments prompted the National Institutes of Health Office of Research on Women’s Health to sponsor development of health promotion activities.
Other Special Groups. A government-sponsored program known as Health Care for the Homeless (HCH) intends to improve access by homeless individuals to primary health care services and substance abuse treatment. In 1997, 123 HCH programs were supported in 48 states, the District of Columbia, and Puerto Rico. Fiscal year 1997 funding for the HCH program totals US$ 69 million.
Residents of public housing projects have also been targeted for assistance with federal funds to help overcome barriers to health services such as lack of transportation, language difficulties, and lack of financial resources. In 1997, a total of US$ 9 million was awarded to 21 grantees to improve access to health care for people who reside in public housing.
Analysis by Type of Disease or Health Impairment
Communicable Diseases
Vaccine-Preventable Diseases. Among vaccine-preventable diseases, diphtheria, tetanus, pertussis, and polio either decreased or remained at a constant low level between 1988 and 1995. However, a major measles outbreak occurred in 1989–1990, after almost 10 years of relatively few reported cases. The number of measles cases in 1989 was higher than the median number reported annually during the preceding eight years, and in 1990, 27,786 cases were reported. In 1995, only 281 cases of measles were reported.
While the measles outbreak affected all age groups, the most notable increases in incidence occurred in preschool-aged children and adults over 20 years old. In several cities, data indicated that measles vaccination coverage was only 40%–65% in kindergarten children, and low coverage significantly contributed to the spread of the disease. Measles outbreaks also occurred among school-aged children with high coverage rates, prompting 21 states to require that students receive a second measles vaccination upon entering kindergarten, first grade, or middle school.
AIDS and Other STDs. The number of persons infected with HIV in the United States was estimated at between 635,000 and 900,000 in 1992. As of June 1996, 530,397 AIDS cases in adults, adolescents, and children had been reported. The number of AIDS cases more than doubled between 1992 and 1993, partly because of the expansion of the AIDS surveillance case definition in 1993, as mentioned previously. Between 1993 and 1995, the annual number of cases declined by 30%, to 71,300 in 1995.
HIV infection continues to be a major health problem, with racial/ethnic minorities bearing a disproportionate share of the burden. However, annual numbers of AIDS cases among African-Americans and Hispanics decreased 23% and 25%, respectively, between 1993 and 1995, to rates of 91 per 100,000 population in African-Americans and 42 per 100,000 in Hispanics, compared to 15 per 100,000 in whites.
In the 1993–1995 period, there was a larger proportionate decrease in reported cases among men (33%) than among women (18%). For women, 1995 rates were higher among African-Americans and Hispanics (46 and 17 per 100,000 population, respectively) than among whites (3 per 100,000). In 1995, African-American children accounted for 66% of all reported pediatric AIDS cases.
The primary exposure categories for reported AIDS cases in the United States are homosexual males (44%) and injecting drug users (26%). A growing number of people have been infected through heterosexual contact (11%). In 1995, the number of women infected with HIV through heterosexual contact exceeded the number infected through injection drug use.
Prevention programs, directed toward changing behaviors, continue to be the main strategy in the control of HIV/AIDS.
Women in the United States are at substantial risk for sexually transmitted diseases (STDs). In 1995, rates for syphilis and gonorrhea among women were 6 and 140 per 100,000, respectively; both rates have declined during the 1990s. Once infected, women are less likely than men to have symptoms, less likely to seek care, and less likely to be diagnosed correctly after seeking care.
Tuberculosis. The incidence of tuberculosis rose in the United States in the early 1990s after decades of decline. A total of 26,673 new cases were reported in 1992, a 20 % increase over 1985. Since 1992, the annual number of new cases of tuberculosis has declined to about the level of 1985 (22,860 cases reported in 1995). The increase in the early 1990s was due to many factors, including the HIV epidemic, deterioration in the local public health care infrastructure, and increases in the number of cases among immigrants.
The occurrence of resistant and multi-drug–resistant tuberculosis has caused great concern regarding recent outbreaks. A national task force, created to expand the 1989 Strategic Plan for the Elimination of Tuberculosis, developed a national action plan to control multi-drug–resistant tuberculosis.
Foodborne Illnesses. Foodborne illnesses remain a major health problem in the U.S. It is estimated that as many as 9,000 deaths and from 6.5 to 33 million illnesses are food-related. Hospitalization costs alone for these illnesses are estimated at over US$ 3 billion a year and costs for lost productivity for seven specific pathogens have been estimated to range between US$ 6 billion and US$ 9 billion.
Between 1988 and 1992, 2,423 foodborne outbreaks were reported in the United States. Bacterial pathogens were responsible for causing 79% of the 1,001 outbreaks and 90% of the cases for which an etiology was determined. Outbreaks caused by Salmonella enteritidis continued to cause significant morbidity and mortality, but decreased by 35 % between 1989 (77 outbreaks) and 1996 (50 outbreaks). In addition to bacteria such as Campylobacter jejuni, Escherichia coli O157:H7, and Listeria monocytogenes, parasites (including Cryptosporidium parvum and Cyclospora cayetanensis) are emerging as important foodborne pathogens.
Noncommunicable Diseases and Other Health-Related Problems
Malignant Tumors. It is estimated that 180,200 new cases of breast cancer will be diagnosed in women in 1997, making it the second leading cause of cancer deaths among women. One in 10 women is projected to develop breast cancer in their lifetime. Although African-American women have an 18% lower incidence of breast cancer than white women, their survival rates are significantly lower, probably a result of earlier diagnosis of the disease in white women. The incidence rate of lung cancer in men began to decline in 1984, but the rate among women continues to rise.
Although incidence rates for colorectal cancer have increased since 1973, they seem to have peaked among white males and females. In recent years there have been significant declines in incidence in both sexes in the white population, a modest decline in African-American females, and stability in African-American males. Mortality rates for colorectal cancer have risen somewhat among African-American males; however, for African-American females the mortality rate has been stable in recent years.
Accidents and Violence. In 1995, nearly 151,000 Americans died from injuries sustained from motor vehicle accidents, falls, burns, drowning, poisoning, homicide, and suicide. This translates into more than 400 people who die from injuries each day; at least 58 of these are children. Costs due to injury including direct medical care and rehabilitation as well as lost income and productivity in 1995 are estimated at more than US$ 224 billion. This represents an increase of 42% over the last decade. Accidental injuries kill more people between the ages of 1 and 34 in the United States than any other cause.
Traffic fatalities have decreased remarkably over the past 30 years. Even so, more than 1.2 million people died on the roads during that period, and traffic accidents remain the leading cause of death from unintentional injury. At present, motor vehicle crashes account for nearly one-third of all injury fatalities, and they are the leading cause of death for persons 5–24 years of age. Alcohol is involved in over 40% of all traffic deaths, and is a factor in about 1.2 million crash-related injuries each year. In 1993 alone, there were over 1.5 million arrests for driving while under the influence of alcohol or narcotics. It is estimated that about two in every five persons in the U.S. will be in a traffic accident involving alcohol at some time in their lives.
The United States currently has the highest overall fire death rate of all industrialized countries. Residential fires are the major cause of overall fire-related mortality. In 1995, 414,000 residential fires claimed the lives of 3,640 individuals and injured another 18,650 people. Direct property damage exceeded US$ 4.2 billion; fire death and injury costs totaled US$ 16 billion. Persons living in residences equipped with functional smoke detectors are half as likely to die in a house fire. About one-quarter of U.S. households lack a working smoke detector.
On an average day, 70 people die from homicide in the United States, 87 people commit suicide, as many as 3,000 attempt suicide, and a minimum of 18,000 survive assaults. Between 1990 and 1995, the age-adjusted homicide rate decreased by 8.9% to 9.2 deaths per 100,000 population, and among males aged 25–44, the rate decreased by 20.4%. However, there were large disparities in homicide rates in 1995 among males aged 15–24. African-American males had rates 18 times higher, and Hispanic males had rates 8.7 times higher than white males. In 1994, almost 5,000 women in the United States were murdered. In those cases in which it was known whether or not the perpetrator and the victim knew each other, only 13% were killed by a stranger. Of the women murdered by someone they knew, approximately half were murdered by a spouse or someone with whom they had been intimate.
From 1980 to 1995, the suicide rate for the U.S. population rose only slightly. Still, suicide was the ninth leading cause of death in 1995. Each year, suicide claims more than 30,000 lives; about 80% of those who die are males. Mortality data compiled for the 1990–1995 period show that the rate of suicide among children under 15 years of age in the United States was double the average suicide rate among that age group in other highly industrialized countries. From 1952 through 1995, suicide rates among adolescents and young adults more than tripled. From 1980 to 1995, the rate of suicide among people aged 15–19 increased by 23%, and among those aged 10–14, the increase was 118%. For African-American males aged 15–19, the rate increased by 146% in this period. Suicide rates continue to be highest among people aged 65 and older. The 1980–1990 period was the first decade since the 1940s in which the suicide rate for older people rose instead of declined.
Behavioral Disorders. In 1994, there were 5,932 mental health facilities in operation in the United States. Nearly 60 % (3,216) were operated and/or funded in whole or in part by a state mental health agency. State and county mental hospitals numbered 260 (5%); private psychiatric hospitals, 430 (8%); residential treatment centers for emotionally disturbed children, 459 (9%); general hospitals with separate psychiatric services, 1,612 (30%); Veterans Administration psychiatric organizations, 161 (3%); and all other mental health organizations, 2,470 (46%).
In 1992 (the latest year for which data are available), the one-year prevalence of mental disorders other than substance abuse was 16% among non-institutionalized, non-rural adults between the ages of 18 and 54. Of these adults, 11.1% had a depressive (affective) disorder, and 34.2% obtained treatment. The prevalence of depressive disorders was higher among women (34.2%) than among men (13.1%).
Substance Abuse. Approximately 11% of preventable deaths in the United States are related to alcohol and illicit drug use. In 1995, the rate of heavy use among high school seniors was reported as 28%; among college students, the rate was 41%. In 1992, the prevalence of marijuana use among high school seniors began to increase. Of related concern is the continued decline in the proportion of high school seniors who perceive social disapproval of occasional use of marijuana and physical and psychological harm from regular marijuana use. The rate of use among young adults (18–25 years) remained about the same in 1994 and 1995.
Oral Health. Dental and oral diseases, including dental caries and periodontal diseases, may be the most prevalent and preventable conditions in the United States, especially among lower socioeconomic groups. Although oral health status has been improving on average, especially among children, expenditures for dental services totaled US$ 45.8 billion in 1995, about 5.2% of all expenditures for personal health care.
A nationwide survey conducted between 1988 and 1994 found that more than 60% of children under the age of 10 had a caries-free primary dentition, as had 55% of children and adolescents aged 5–17. While caries in permanent teeth continue to decline among school-aged children, 45% of them still suffer from this preventable disease.
Oral cancer primarily affects adults over age 60 and results in over 8,000 deaths annually. Treatment of oral cancer is costly and frequently results in significant disfigurement and loss of function.
RESPONSE OF THE HEALTH SYSTEM
National Health Plans and Policies
The most comprehensive U.S. policy to improve health and prevent adverse health conditions is called Healthy People 2000. The central goal is to increase the number of people who live long, healthy, and disability-free lives. The second goal of the plan calls for the elimination of disparities in health among population groups. The third goal of the strategy is to achieve access to clinical preventive services for all people.
As overall coordinator of Healthy People 2000, the Office of Disease Prevention and Health Promotion, a program office in the Department of Health and Human Services, works with Public Health Service agencies, other federal agencies and departments, and members of the Healthy People Consortium. The Consortium consists of 345 national membership organizations representing professional, voluntary, and corporate interests and 271 state agencies that collaborate to support the prevention agenda and achieve the year 2000 goals.
In 1994, the Public Health Service undertook a midcourse review of the Healthy People 2000 objectives. The resulting review document showed that of the 300 objectives, 50% were moving toward the target, 18% were moving away from the target, 3% showed no change, and 29% had insufficient data to measure progress. As of 1997, 44 states, the District of Columbia, and Guam had published Healthy People 2000 plans of their own. By 1993, 70% of local health departments were using Healthy People objectives.
At the 1996 meeting of the Healthy People Consortium, at which WHO and PAHO were represented, the foundation was laid for the third generation of these objectives, Healthy People 2010, which will be released in January 2000.
Health Services and Resources
Organization of Services for Care of the Population
Food and Nutrition. Diet plays a critical role in the prevention of diseases such as coronary heart disease, cancers, strokes, and diabetes mellitus, which are leading causes of death and disability in the United States.
Objectives in improving nutrition nationwide relate to obesity, relationships between diet and disease, the application of the "Dietary Guidelines for Americans" to food service operations, dietary counseling, food labeling, nutrition education in schools, maternal and infant nutrition, and feeding of older people.
The strategy for food safety involves four components: regulatory measures to increase food safety; technical support for states and territories for regulation of food operations; surveillance systems to track the incidence of foodborne pathogens; and communication with consumers about safe food-handling practices.
Environmental Health. Addressing environmental health concerns requires the participation of federal agencies including the Department of Health and Human Services, the Environmental Protection Agency, the Department of Agriculture, and the Department of Transportation, as well as state and local agencies, the private sector and community groups. The wide range of priority areas reflects the broad nature of the problems. Some of the priorities include environmental health education, risk assessment programs for state health agencies, emergency response programs, and water/sanitation projects among migrant and rural people.
In its ongoing efforts in disease prevention, the U.S. Public Health Service recognizes that environmental risks are underlying factors contributing to the disease process.
The magnitude of the threat posed by environmental hazards on
the health of the nation is evident in the following
examples. In 1995, one-third of the United States population
lived in an area where the air was too polluted to meet
health standards. One in four United States residents lived
within four miles of a so-called "Superfund site,"
which denotes areas assigned highest priority by the
Environmental Protection Area for accelerated clean-up of
hazardous wastes. Aquifers from which much of the country
draws its drinking water are shrinking faster than they can
be replenished, and as
this happens, they become increasingly vulnerable to toxic
contamination.
Family Planning Services. Public funds to provide family planning services come from several programs. The largest source of funds is the federal-state Medicaid program, which focuses on low-income women. Family planning services are also partially supported in most states with federal funds from the Maternal and Child Health Block Grant and the Social Services Block grant program. In addition, some family planning clinics receive support from state and local sources.
The Adolescent Family Life Program has a fiscal year 1997 budget of US$ 14.2 million for programs to control the number of teen pregnancies. With these funds, it supports community-based demonstration projects focusing on issues of adolescent sexuality, pregnancy, and parenting. Prevention projects encourage adolescents to abstain from early sexual activity. Parental consent is required for receipt of these services.
Research and Technology
Research. Biomedical and behavioral research and training are conducted through a vast network of extramural programs involving the country’s major universities, medical schools, and research centers. The federal government supports nearly 40% of all biomedical research and development in the country through the National Institutes of Health (NIH). The highest funding priority at NIH is basic research. This research investment has led to many achievements: new knowledge about the body, from the level of the gene to organ systems; research and clinical technologies; new diagnostic techniques; new drugs to fight illnesses; and new vaccines to prevent disease. Through its training programs, NIH ensures a steady flow of young researchers into the biomedical research community.
The total NIH budget for fiscal year 1998 is approximately US$ 13.6 billion, which includes US$ 1.6 billion for AIDS research. Approximately 79% of the budget supports extramural research and training in the United States and abroad and about 11% of the budget supports intramural research conducted at NIH’s own laboratories.