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Death rates for leading causes of death show marked decline in U.S.

Declines in all causes combined, heart disease, cancer, stroke, unintentional injuries, and diabetes

female patient getting blood pressure test with good resultsOct. 27, 2015 - Three cheers for a new study that finds a dramatic decrease in the U.S. between 1969 and 2013 in the age-standardized death rate and years of potential life lost before age 75 from the most frequent causes of death and all causes.

This study for all causes combined and for heart disease, cancer, stroke, unintentional injuries, and diabetes, did find, however, that the rate of decrease appears to be slowing for heart disease, stroke, and diabetes.

The researchers write that the progress against heart disease and stroke is attributed to improvements in control of hypertension and hyperlipidemia, smoking cessation, and medical treatment.

The study is reported in the October 27 issue of JAMA. Click to watch video on YouTube.

A comprehensive examination of long-term trends in mortality is important for health planning and priority setting and for identifying modifiable factors that may contribute to the trends, according to the researchers.

Jiemin Ma, Ph.D., M.H.S., of the American Cancer Society, Atlanta, and colleagues analyzed U.S. national vital statistics data from 1969 through 2013 to determine total and annual percent change in age-standardized death rates and years of potential life lost before age 75 years for all causes combined and for the leading causes.

Between 1969 and 2013, the age-standardized death rate for all causes combined decreased from 1,279 per 100,000 population to 730 (43 percent reduction) – an average annual decrease of 1.3 percent.

Five of the six leading causes of death experienced an overall decline in death rates during this time period.

The rate of death (per 100,000) decreased by these percentages

         All causes by 43 percent

         stroke by 77 percent;

         heart disease by 68 percent;

         unintentional injuries by 40 percent;

         cancer by 18 percent; and

         diabetes by 17 percent.

The death rate for chronic obstructive pulmonary disease (COPD) increased by 101 percent during this period. However, during the last time segment in the analysis, the death rate for COPD in men began to decrease.

 

Unfortunately, the declines slowed for heart disease, stroke, and diabetes. For example, the annual decline for heart disease slowed from 3.9 percent during the 2000-2010 period to 1.4 percent during the 2010-2013 period.

Between 1969 and 2013, age-standardized years of potential life lost per 1,000 decreased from 1.9 to 1.6 for diabetes (14.5 percent reduction); a 41 percent reduction for cancer; 48 percent for unintentional injuries; 68 percent for heart disease; and 75 percent for stroke. For COPD, the rate for years of potential life lost did not decrease over this time interval.

“The reduction in cancer deaths since the early 1990s is also an outcome of tobacco control efforts, as well as advances in early detection and treatment. Notably, the years-of-potential-life lost rate from cancer has been decreasing since 1969, preceding the decline in cancer death rates by about 20 years,” the authors note.

“This may reflect the importance of smoking cessation in substantially reducing premature mortality. The overall decrease in the death rate for unintentional injuries has been largely attributed to continuous declines in motor vehicle–related deaths.”

The authors also report that the observed recent slowing of the decline in death rates for obesity-related diseases (e.g., heart disease, stroke, and diabetes) may reflect the lagged consequences of increased obesity prevalence since the 1980s.

“Further disease-specific studies are needed to investigate these trends. Regardless of the changes in death rates, the increasing numbers of old persons in the United States and growth of the U.S. population will pose a considerable challenge for health care delivery in the coming decades, in view of the shortage of primary care physicians and geriatricians, increasing cost of health care, and the lag between healthy life and life expectancies.”

This study was supported by the Intramural Research Department of the American Cancer Society. All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.

JAMA Editorial: Mortality Trends and Signs of Health Progress in the United States

 “Death rate may have at one time served as a sufficient measure of health system performance, but assessment now requires more textured insights, including those that reflect the improving capacity to measure health status, risk prevalence, and service access, effectiveness, and affordability,” writes J. Michael McGinnis, M.D., M.P.P., of the National Academy of Medicine, Washington D.C., in an accompanying editorial.

 “What is needed is a set of national vital health indicators that is broader than mortality, but still a limited number, tightly constructed, standardized, and reliably available at all levels from local to national. Earlier this year, an Institute of Medicine Committee on Core Metrics for Better Health at Lower Cost, released its report, Vital Signs: Core Metrics for Health and Health Care Progress.

"The Committee recommended 15 core measures across 4 domains—healthy people, quality care, affordable care, and engaged people—which could be assembled from a manageable set of standardized measures to be collected system-wide. Whether through adoption of this or some other expanded notion of what should constitute the nation’s truly vital signs, the time has arrived to match the capacity with the potential and the need.”

>> Abstract of Research Report

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