Nav: Home

Heart attacks continue notable 15-year decline in Northern California

August 01, 2016

OAKLAND, Calif., Aug. 1, 2016 -- Heart attack rates among an ethnically diverse population of more than 3.8 million Kaiser Permanente members in Northern California fell 23 percent from 2008 to 2014, as reported today in the Journal of the American College of Cardiology.

"Our findings show heart attack rates have continued to decline since 2008, overall and in key patient subgroups, within a large community that reflects racial, ethnic and socioeconomic diversity," said senior author Alan S. Go, MD, chief of Cardiovascular and Metabolic Conditions at the Kaiser Permanente Northern California Division of Research.

Researchers studied rates of heart attacks by severity, age, gender, and diabetes status. While the incidence of heart attacks was highest in men, older age groups, and people with diabetes, similar declines in heart attack rates were seen across all subgroups -- including those most at risk and with the highest rates, as well as among lower-risk patients, such as younger patients and women.

"This persistent reduction in the risk of heart attack is a testament to Kaiser Permanente's ongoing primary and secondary prevention efforts at a community level," said lead author Matthew D. Solomon, MD, PhD, of the Division of Cardiology, Kaiser Permanente Oakland Medical Center and adjunct investigator at the Kaiser Permanente Northern California Division of Research. "We have implemented system-wide programs for the management of blood pressure and cholesterol, diabetes, and other chronic illnesses, which has resulted in nation-leading reductions in heart disease among our members."

The findings of this latest Kaiser Permanente study build on research published in 2010 in the New England Journal of Medicine that demonstrated a 24 percent decline in heart attacks between 1999 and 2008.

A key difference in the two time periods studied was the type of heart attack that accounted for the majority of the declines. More severe but less common heart attacks, known as ST-elevation myocardial infarction or STEMI, which typically require an immediate procedure to open a blocked artery, fell by 62 percent from 1999 to 2008. The number of these heart attacks fell by an additional 10 percent from 2008 to 2014, resulting in a total reduction of 72 percent in these severe heart attacks from 1999 to 2014.

The more common but less severe heart attacks, known as non-ST-elevation myocardial infarction or NSTEMI, showed the greatest decline from 2008 to 2014. These types of heart attacks peaked in 2004 and have fallen 33 percent through 2014. When taken together, there was a 40 percent reduction in all types of heart attacks across Kaiser Permanente in Northern California from the peak in 2000 through 2014, the most recently studied year.

"While the decline in severe heart attacks across our population has been astonishing, we now see consistent declines in all types of heart attacks," Dr. Solomon said. "Reductions in less severe heart attacks, which are nearly four times as common as the severe heart attacks, drove the bulk of the recent decline. But what is most heartening is that these reductions were consistent across every demographic and risk group we examined."

The current analysis identified 29,087 patients who experienced acute myocardial infarction (AMI) between 2008 and to 2014, from nearly 4 million patients aged 18 years or older. The study is one of the first to examine AMI rates by type of myocardial infarction, demographics and diabetes. The rates of AMI in the Kaiser Permanente population in Northern California were lower than those observed in Medicare nationally and in comparable international populations.
-end-
Other authors of the study include Jamal S. Rana, MD, PhD, Division of Cardiology, Kaiser Permanente Oakland Medical Center and Kaiser Permanente Northern California Division of Research; Thomas K. Leong, MPH, Kaiser Permanente Northern California Division of Research; and Yaping Xu, PhD, Genentech.

The study was sponsored by a research grant from Genentech.

About the Kaiser Permanente Division of Research

The Kaiser Permanente Division of Research conducts, publishes and disseminates epidemiologic and health services research to improve the health and medical care of Kaiser Permanente members and society at large. It seeks to understand the determinants of illness and well-being, and to improve the quality and cost-effectiveness of health care. Currently, DOR's 550-plus staff is working on more than 350 epidemiological and health services research projects. For more information, visit http://www.dor.kaiser.org or follow us @KPDOR.

About Kaiser Permanente

Kaiser Permanente is committed to helping shape the future of health care. We are recognized as one of America's leading health care providers and not-for-profit health plans. Founded in 1945, Kaiser Permanente has a mission to provide high-quality, affordable health care services and to improve the health of our members and the communities we serve. We currently serve more than 10.6 million members in eight states and the District of Columbia. Care for members and patients is focused on their total health and guided by their personal physicians, specialists and team of caregivers. Our expert and caring medical teams are empowered and supported by industry-leading technology advances and tools for health promotion, disease prevention, state-of-the-art care delivery and world-class chronic disease management. Kaiser Permanente is dedicated to care innovations, clinical research, health education and the support of community health. For more information, go to: kp.org/share.

Kaiser Permanente

Related Diabetes Articles:

The role of vitamin A in diabetes
There has been no known link between diabetes and vitamin A -- until now.
Can continuous glucose monitoring improve diabetes control in patients with type 1 diabetes who inject insulin
Two studies in the Jan. 24/31 issue of JAMA find that use of a sensor implanted under the skin that continuously monitors glucose levels resulted in improved levels in patients with type 1 diabetes who inject insulin multiple times a day, compared to conventional treatment.
Complications of type 2 diabetes affect quality of life, care can lead to diabetes burnout
T2D Lifestyle, a national survey by Health Union of more than 400 individuals experiencing type 2 diabetes (T2D), reveals that patients not only struggle with commonly understood complications, but also numerous lesser known ones that people do not associate with diabetes.
Type 2 diabetes and obesity -- what do we really know?
Social and economic factors have led to a dramatic rise in type 2 diabetes and obesity around the world.
A better way to predict diabetes
An international team of researchers has discovered a simple, accurate new way to predict which women with gestational diabetes will develop type 2 diabetes after delivery.
The Lancet Diabetes & Endocrinology: Older Americans with diabetes living longer without disability, US study shows
Older Americans with diabetes born in the 1940s are living longer and with less disability performing day to day tasks than those born 10 years earlier, according to new research published in The Lancet Diabetes & Endocrinology journal.
Reverse your diabetes -- and you can stay diabetes-free long-term
A new study from Newcastle University, UK, has shown that people who reverse their diabetes and then keep their weight down remain free of diabetes.
New cause of diabetes
Although insulin-producing cells are found in the endocrine tissue of the pancreas, a new mouse study suggests that abnormalities in the exocrine tissue could cause cell non-autonomous effects that promotes diabetes-like symptoms.
The Lancet Diabetes & Endocrinology: Reducing sugar content in sugar-sweetened drinks by 40 percent over 5 years could prevent 1.5 million cases of overweight and obesity in the UK and 300,000 cases of diabetes
A new study published in The Lancet Diabetes & Endocrinology journal suggests that reducing sugar content in sugar sweetened drinks (including fruit juices) in the UK by 40 percent over five years, without replacing them with any artificial sweeteners, could prevent 500,000 cases of overweight and 1 million cases of obesity, in turn preventing around 300,000 cases of type 2 diabetes, over two decades.
Breastfeeding lowers risk of type 2 diabetes following gestational diabetes
Women with gestational diabetes who consistently and continuously breastfeed from the time of giving birth are half as likely to develop type 2 diabetes within two years after delivery, according to a study from Kaiser Permanente published today in Annals of Internal Medicine.

Related Diabetes Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Digital Manipulation
Technology has reshaped our lives in amazing ways. But at what cost? This hour, TED speakers reveal how what we see, read, believe — even how we vote — can be manipulated by the technology we use. Guests include journalist Carole Cadwalladr, consumer advocate Finn Myrstad, writer and marketing professor Scott Galloway, behavioral designer Nir Eyal, and computer graphics researcher Doug Roble.
Now Playing: Science for the People

#529 Do You Really Want to Find Out Who's Your Daddy?
At least some of you by now have probably spit into a tube and mailed it off to find out who your closest relatives are, where you might be from, and what terrible diseases might await you. But what exactly did you find out? And what did you give away? In this live panel at Awesome Con we bring in science writer Tina Saey to talk about all her DNA testing, and bioethicist Debra Mathews, to determine whether Tina should have done it at all. Related links: What FamilyTreeDNA sharing genetic data with police means for you Crime solvers embraced...