We sought to describe pulmonary fibrosis mortality in the United States from 1979 through 1991 by analyzing death certificate reports compiled by the National Center for Health Statistics. Of the 26,866,600 people who died during the study period, 107,292 had a diagnosis of pulmonary fibrosis listed on their death certificates. Among men, age-adjusted mortality rates increased from 48.6 per 1,000,000 in 1979 to 50.9 per 1,000,000 in 1991 and, among women, these rates increased from 21.4 per 1,000,000 in 1979 to 27.2 per 1,000,000 in 1991. Among both men and women rates were higher in older age strata than in younger age strata. Age-adjusted mortality rates were consistently higher among whites and people of races than blacks. The frequency with which pulmonary fibrosis was listed as the underlying cause of death increased from 40% in 1979 to 56% in 1991. Age-adjusted mortality rates varied by state, with lowest rates in the Midwest and Northeast, and the highest rates in the West and Southeast. We conclude that the age-adjusted rate of pulmonary fibrosis among decedents in the United States increased, and pulmonary fibrosis was listed as the underlying cause of death with increasing frequency, over the study period. We cannot determine whether the differences we detected between regions, sexes, and races are related to characteristics of the disease or problems in death certification and coding.
This article describes environmental public health surveillance and proposes a framework to enhance its practice in the United States. Special issues for surveillance in environmental public health are examined, and examples of existing systems useful for environmental public health practice are provided. Current and projected surveillance needs, as well as potential sources of data, are examined. The proposed framework for conducting environmental public health surveillance involves data from three points in the process by which an agent in the environment produces an adverse outcome in a host: hazards, exposures, and outcomes. Environmental health practitioners should build on efforts in other fields (e.g., infectious diseases and occupational health) to establish priorities in the surveillance of health conditions associated with exposure to environmental toxicants. For specific surveillance programs, existing data systems, as well as data gaps, should be identified. Coordinated surveillance systems can facilitate public health efforts to prevent and control disease, injury, and disability related to the interaction between people and their environment.
Electronic health records (EHRs) could contribute to improving population health in the United States. Realizing this potential will require understanding what EHRs can realistically offer to efforts to improve population health, the requirements for obtaining useful information from EHRs, and a plan for addressing these requirements. Potential contributions of EHRs to improving population health include better understanding of the level and distribution of disease, function, and well-being within populations. Requirements are improved population coverage of EHRs, standardized EHR content and reporting methods, and adequate legal authority for using EHRs, particularly for population health. A collaborative national effort to address the most pressing prerequisites for and barriers to the use of EHRs for improving population health is needed to realize the EHR's potential.
In 1991, media reports of an increase in the number of deaths attributed to methadone toxicity in Harris County, Texas, raised public concern about the safety of methadone. This concern was heightened by publicity surrounding the closure of three Harris County methadone maintenance treatment programs due to their poor compliance with federal methadone regulations. In response to this concern, the Texas Department of Public Health requested that the Centers for Disease Control and Prevention (CDC) assist in an epidemiologic study to determine the extent of methadone-related mortality in Harris County during 1991 and to determine the role of methadone maintenance treatment in these deaths. We reviewed cases investigated by the Harris County Medical Examiner's Office from 1987 through 1992 in which methadone was detected by postmortem drug testing. The autopsy reports for cases occurring in 1991 were also reviewed by three independent forensic pathologists who were asked to determine the role of methadone in the death. In addition, we attempted to document Harris County methadone maintenance treatment program enrollment for each decedent. We identified 91 decedents in whom methadone was detected at the time of death, with the largest number of cases occurring in 1991 (n = 27). Other substances, including alcohol, were detected in 85% of the cases. The Harris County Medical Examiner attributed 11 of the deaths to methadone toxicity. No more than three cases per year from 1987 through 1992 were attributed to methadone toxicity. In contrast, 34 deaths were attributed to polydrug toxicity, the largest number occurring in 1991 (n = 11). There was good agreement between the results of the independent review and the opinions of the Harris County Medical Examiner. Only 20% of the decedents were found to have been enrolled in a Harris County methadone maintenance treatment program at the time of death. Four people died of drug toxicity shortly after enrolling in a methadone maintenance treatment program. We found an increase in the number deaths occurring in Harris County, Texas, in 1991 in which methadone was detected. We also found that methadone blood levels were higher among decedents identified for 1991 and 1992 than among those identified in the previous years studied. However, we did not find evidence that the cause of these deaths could be attributed solely to methadone toxicity. Instead, for all years studied, the use of multiple drugs was the leading cause of death among people in whom methadone was detected. This finding points out the difficulties involved in determining the role of methadone as a cause of death.
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