Study finds declines in heart attacks to be greater among men than women

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In a study published in the American Heart Association scientific journal Circulation, Kaiser Permanente research scientists report a steady decline in heart attacks for both men and women enrolled in the health system from 2000 to 2014, although that rate of decline slowed among women in the last 5 years of the study.

The study points to the need for continued improvement in the awareness, prevention, recognition, and treatment of risk factors for heart disease in women. It also shows that more research needs to be done to understand the disparities between men and women."

Kristi Reynolds, PhD, MPH, the senior author on the study and the director of Epidemiologic Research with the Kaiser Permanente Southern California Department of Research & Evaluation

The study was based on 45,331 hospitalizations for heart attacks occurring in patients who were ages 35 years and older within Kaiser Permanente in Southern California between 2000 and 2014.

This research showed the rate of heart attacks:

  • Declined overall by nearly 50% between 2000 and 2014
  • Declined among men during the study period by about 4.7% annually
  • Declined among women from 2000 to 2008 by about 4.6% annually
  • Declined among women from 2009 to 2014 by about 2.3% annually

Men have roughly double the risk for heart attack hospitalization compared to women in the United States, although several studies have reported increasing rates of hospitalization for heart attacks among women under the age of 55 years. Heart attacks are the leading cause of death for women.

The study did not determine why the decline in heart attacks was not as great among women.

Researchers said the overall declines in heart attacks reflect a national trend of decreasing heart attack rates and may be due in part to increased use of medications, such as statins, and lifestyle changes.

The heart attack trends at Kaiser Permanente in Southern California may not be generalizable to the United States because the organization has had systemic programs in place to reduce cardiovascular disease since 2001. Systemwide care initiatives resulted in large improvements in cardiovascular health risk factors such as blood pressure and cholesterol control that exceeded the improvements observed in most other health care systems.

"We are very proud the rate of heart attacks continues to decline among men and women within Kaiser Permanente Southern California," said study co-author Ronald Scott, MD, a family physician at the Kaiser Permanente West Los Angeles Medical Center, and the cardiovascular co-lead for the Southern California Permanente Medical Group.

Most heart attacks and strokes are preventable, Dr. Scott said.

"And we want to continue the trend of lowering the rate of heart attacks among both men and women by prescribing statins as a preventive medication and continuing to recommend lifestyle changes such as improved diet and exercise," he said.

Matthew Mefford, PhD, the lead author on the research, suggested that the takeaway message from the research is that women especially should talk with their doctors to find out what they can do to reduce their risk of heart attacks.

Journal reference:

Mefford, M.T., et al. (2020) Sex-Specific Trends in Acute Myocardial Infarction Within an Integrated Healthcare Network, 2000 Through 2014. Circulation.


The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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