Cancer on Course to Become Americans' Top Killer
Report shows it will probably eclipse heart disease as leading cause of death in coming years
WebMD News from HealthDayBy Dennis Thompson
HealthDay Reporter
WEDNESDAY, Aug. 24, 2016 (HealthDay News) -- Cancer is on track to become the leading cause of death in the United States, closing in on heart disease as America's number one killer, a new government study shows.
Heart disease has consistently been the leading cause of death for decades, and remained so in 2014, according to a report from the National Center for Health Statistics (NCHS) at the U.S. Centers for Disease Control and Prevention.
But the gap between heart disease and the second-leading cause of death, cancer, has been narrowing since 1968, the researchers said.
Cancer actually surpassed heart disease as the leading cause of death for 22 states in 2014, the study found. Back in 2000, Alaska and Minnesota were the only two states where cancer killed more people than heart disease.
In addition, cancer is now the leading cause of death for a number of minority groups, including Hispanics, Asians and Pacific Islanders, the report showed.
"It's been edging this way for a while," said co-author Robert Anderson, chief of the Mortality Statistics Branch at the NCHS. "We've taken for granted that heart disease is the leading cause of death, but now because of prevention efforts and advances in treatment, we're making substantial progress with heart disease, to the point where now it's roughly on par with cancer."
Annual heart disease deaths have decreased nationwide from a peak of just over 771,000 in 1985 to nearly 597,000 in 2011. In the meantime, cancer deaths have nearly tripled from just under 211,000 in 1950 to almost 577,000 in 2011, the report stated.
Dr. Mariell Jessup is a spokeswoman for the American Heart Association. She pointed out that new medicines have made it easier for people to control their blood pressure and cholesterol, treatment advances like angioplasty and heart bypass surgery saves the lives of many heart patients, and more people have quit smoking and started eating healthier diets.
"One could argue that we're doing a better job of keeping people with heart disease alive," said Jessup, who is a professor at the Hospital of the University of Pennsylvania in Philadelphia. "It's not that people aren't experiencing heart disease, but they're not dying from it."
Report shows it will probably eclipse heart disease as leading cause of death in coming years
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Another expert agreed, with a twist on the thinking.
Essentially, modern medicine has gotten so good at dealing with heart disease that people are living much longer, making them more apt to eventually develop cancer, said Dr. Richard Schilsky. He is chief medical officer for the American Society of Clinical Oncology.
"We have to keep in mind that everyone's going to die eventually from something. Any time we reduce the risk of death for any particular cause, we increase the risk you're going to die from another cause," Schilsky explained.
"Cancer is a disease that is fundamentally associated with aging. If you outlive all the competing causes of mortality, there's a greater and greater likelihood that you're going to get cancer," Schilsky added.
That view is reflected in the states where cancer has overtaken heart disease, said Rebecca Siegel, strategic director of Surveillance Information Services for the American Cancer Society.
In those states, people seem to be healthier overall than in states where heart disease reigns supreme. Death rates for both heart disease and cancer were lower in the states where cancer was the leading cause of death, Siegel said.
"It's not that cancer rates are high in those states at all," Siegel said. "We all have to die from something, right?"
She added that heart disease treatment and prevention has benefited from rapid progress because it's a more narrow field of medicine.
"Heart disease is basically one disease, whereas with cancer we're looking at more than 100 different diseases," she said. "You have very effective ways to prevent and treat heart disease, and we've had them for quite some time, whereas knowledge about the biology of cancer and how to prevent it and treat it is still in its infancy."
In recent years -- between 2011 and 2014 -- heart disease and cancer deaths have both increased in roughly parallel fashion, the report noted.
Heart disease deaths increased by 3 percent between 2011 and 2014, from 596,577 to 614,348, while cancer deaths increased by 2.6 percent during the same period, from 576,691 to 591,699, the findings showed.
Report shows it will probably eclipse heart disease as leading cause of death in coming years
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These increases could be related to the obesity epidemic, Siegel suggested.
"The obesity epidemic is catching up with us," she said. "It's overcoming our ability to prevent and treat heart disease, and there are a lot of cancers that are also associated with obesity."
The report was published online Aug. 24 in the CDC's NCHS Data Brief.
AHA Says Cap Added Sugars for Kids at 6 Teaspoons a Day
Children should consume less than 25 g, or the equivalent of 6 tsp, of added sugars a day — far below current intake in the United States, according to the first scientific statement on the subject by the American Heart Association (AHA).
Currently, US children ages 2 to 19 years old consume more than three times that amount — about 80 g of added sugar daily — half from food and half from drinks, say the diet and nutrition experts who analyzed National Health and Nutrition Examination Survey data from 2009–2012. And because intake amounts in the surveys were self-reported, the numbers likely even underestimate the problem, the authors of the statement say.
Added sugars include table sugar, fructose, and honey used in processing and preparing foods or drinks and sugars added to foods at the table or eaten separately.
Only 8 Oz of Sugary Drinks a Week, Guidelines Say
Miriam B Vos, MD, MsPH, associate professor of pediatrics at Emory University School of Medicine, Atlanta, Georgia, and fellow committee members write in the statement published August 22 in Circulation: "Current evidence supports the associations of added sugars with increased energy intake, increased adiposity, increased central adiposity, and increased dyslipidemia."
They add that overweight children who continue to ingest more added sugars are also more likely to become insulin-resistant, a precursor for type 2 diabetes.
Beginning July 2018, the Food and Drug Administration (FDA) will require that food labels show not just all sugars but also those that were added.
"Until then, the best way to avoid added sugars in your child's diet is to serve mostly foods that are high in nutrition, such as fruits, vegetables, whole grains, low-fat dairy products, lean meat, poultry, and fish and to limit foods with little nutritional value," Dr Vos said in a press statement.
In addition to limiting intake of table sugar, fructose, and honey, people should watch for labels for brown sugar, corn sweetener, corn syrup, dextrose, glucose, invert sugar, lactose, malt syrup, maltose, molasses, sucrose, trehalose, and turbinado sugar, the AHA suggests.
One of the biggest sources of added sugars is sugar-sweetened beverages, particularly soft drinks, sweet tea, and sports and energy drinks.
The AHA cautions that children and teens should have no more than 8 oz weekly of sugar-sweetened drinks. Parents should avoid all added sugar for children under the age of 2 years. Calorie requirements are only about 1000 a day for infants, so there is less room for added low-value sugars. Also, taste preferences start early in life, so limiting added sugars may help develop healthy eating habits.
"Children should not drink more than one 8-oz sugar-sweetened drink a week, yet they are currently drinking their age in sugary drink servings each and every week," Dr Vos commented.
As to whether using artificial sweeteners such as aspartame, saccharine, and sucralose may be a good solution, the authors point to a dearth of research in that area for both child and adult populations and therefore could not offer a recommendation.
Further research is also needed into the genetic component of bodies' response to sugar and how the interaction between the microbiome and added sugars and consequently CVD risk varies among individuals, the authors suggest.
The AHA guidelines align with the World Health Organization and the Food and Drug Administration recommendations that added sugars should make up less than 10% of calories.
Dr Vos has no relevant financial relationships. Disclosures for the coauthors are listed in the article.
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Circulation. Published online August 22, 2016. Abstract