Navigation Links
Incidence of High Cholesterol Drops in U.S.
Date:11/17/2009

Down by 30 percent, but those with high levels often don't know it, study finds

TUESDAY, Nov. 17 (HealthDay News) -- The good news is that a new report shows the percentage of American adults with high LDL cholesterol, the "bad" kind that clogs arteries, decreased by about one-third between 1999 and 2006.

The bad news is that too many of those who have dangerously high levels of LDL cholesterol don't know it, said study author Dr. Elena V. Kuklina, an epidemiologist and senior service fellow at the U.S. Centers for Disease Control and Prevention. Her research is published in the Nov. 18 issue of the Journal of the American Medical Association.

"In the group with high LDL cholesterol, 60 percent of these people do not know they have this condition," Kuklina said. "They are in two major groups -- those who have never been screened, and those who have been screened but not diagnosed."

It is not as easy to test for LDL, rather than total blood cholesterol levels, including "good" HDL, Kuklina said. An LDL test requires fasting for the previous eight hours, "and if you are not prepared for this test, it is not going to be correct," she said. But testing someone and then not informing that person of a dangerously high LDL cholesterol level is not easy to explain, she said.

While many studies have found that overall cholesterol levels in American adults are decreasing, there has not been much information on LDL levels, Kuklina said. The study she did with colleagues at the CDC used data from consecutive results of the National Health and Nutrition Examination Survey. It found that overall prevalence of high LDL cholesterol levels decreased from 31.5 percent in 1999-2000 to 21.2 percent in 2005-2006.

But there is no single definition of high LDL, the report noted. For persons at high risk of major problems because they have diagnosed heart disease, stroke or other cardiovascular conditions, the desired LDL level is 100 milligrams per deciliter of blood. For those at intermediate risk because they have two or more risk factors, such as diabetes, high blood pressure, smoking or a family history of heart trouble, the desired level is 130. For those at low risk because they have no more than one risk factor, the desired level can be as high as 160.

A troubling finding was that the greatest incidence of dangerously high LDL cholesterol is in the high-risk group. The prevalence of high LDL did decrease in that group, but only from 69.4 percent in the first survey to 58.9 percent in the last survey, the study authors reported.

As for the cause of the overall reduction, "we don't know why, we can only speculate," Kuklina said. It could be changes in lifestyle, such as better diet, or it could be more widespread use of cholesterol-lowering medications such as statins, she said.

"But we still have many people we could put on statins," Kuklina noted.

It's important to remember that LDL cholesterol is just "one of many risk factors for cardiovascular disease," said Dr. Thomas A. Gaziano, an assistant professor of medicine at Harvard Medical School and an associate physician at Brigham and Women's Hospital, and co-author of an accompanying editorial.

Doctors must consider all the risk factors when dealing with cardiovascular disease, Gaziano said. "We recommend simplifying how the risk is calculated," he said. "Once the risk is determined, therapy should be based on overall risk, not just on cholesterol."

There are different recommendations about the age at which cholesterol screening should begin, Kuklina noted. The CDC, the National Heart, Lung and Blood Institute and the American Heart Association recommend that screening tests should start at age 20, she said.

"I don't think it unreasonable to get screened once in the 20s, and then with increasing frequency in the 30s," Gaziano said.

More information

Learn about the different cholesterols and what they do from the American Heart Association.



SOURCES: Elena V. Kuklina, M.D., Ph.D., epidemiologist, senior service fellow, U.S. Centers for Disease Control and Prevention, Atlanta; Thomas A. Gaziano, assistant professor, medicine, Harvard Medical School, and associate physician, Brigham and Women's Hospital, both in Boston; Nov. 18, 2009, Journal of the American Medical Association


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Drop in breast cancer incidence linked to hormone use, not mammograms
2. Susan G. Komen For The Cure, Karmanos Cancer Institute, Local Hospitals Call on Policymakers to Address Injustice and Unfairness in Breast Cancer Incidence and Mortality
3. Ranexa(R) Significantly Reduces Incidence of CV Death, MI or Recurrent Ischemia in MERLIN TIMI-36 Patients With Elevated BNP
4. Cancer Incidence in the United States: A Progress Report
5. Puget Sound Komen for the Cure, Former First Lady Mona Locke, Washington Health Leaders and Breast Cancer Survivors Call for Action to Reduce States High Breast Cancer Incidence
6. New Asia Pacific Statistics Reveal an Alarming Incidence of HIV in MSM
7. Link between treating osteoporosis with bisphosphonates and incidence of bone necrosis examined
8. Mayo researchers look for explanation behind high incidence of diabetes among Asian Indians
9. Mayo Researchers Look for Explanation Behind High Incidence of Diabetes Among Asian Indians
10. Susan G. Komen for the Cure(R) Calls on Policymakers to Address Unfairness in Breast Cancer Incidence and Mortality
11. Medical Research Should Include More Women Participants and Examine the Role of Gender in Disease Incidence and Treatment
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/24/2017)... (PRWEB) , ... April 24, 2017 , ... “The Saint ... Saint with Trin, and Omega Station” is the creation of published author, Chris Jackson. ... Dallas Metroplex where he works in the Dallas Independent School District teaching English. He ...
(Date:4/24/2017)... ... April 24, 2017 , ... Anaconda BioMed, a pre-clinical stage ... the treatment of Acute Ischemic Stroke (AIS), today announced it has appointed Creganna ... advances towards regulatory and clinical phases. , "This is another important step for ...
(Date:4/22/2017)... ... April 22, 2017 , ... Ecommerce sales have grown every year since ... $394.9 billion. The consequences of rapid innovation and growth are often neglected in ... it is every business and individual’s job to give something back to the planet ...
(Date:4/22/2017)... ... ... San Juan Capistrano summer camp team at the Boys and Girls Club of ... to provide physical activities for all campers. To read the report, click here ... increase in specialty camps that focus on what the report terms as “sitting subjects” like ...
(Date:4/21/2017)... Boston, MA (PRWEB) , ... April 21, 2017 ... ... Boston University professor Christopher Salas-Wright finds that youth violence is declining—and at noteworthy ... in the relative proportion of young people involved in violence in the United ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... DALLAS , April 19, 2017  Vanderbilt ... the first patients in Nashville , ... the Lower Esophageal Sphincter Stimulation for GERD (LESS GERD) ... designed to provide long-term reflux control by restoring normal ... affects nearly 65 million people in the ...
(Date:4/19/2017)... 2017  Novartis today announced the publication of ... and Blood Institute (NHLBI) of the National Institutes ... with treatment-naïve severe aplastic anemia (SAA) achieved complete ... at the initiation of and concurrently with standard ... sequential treatment groups, or cohorts. Cohort 3 added ...
(Date:4/18/2017)... , April 18, 2017 Research and ... Market 2017-2021" report to their offering. ... The global arthroscopy devices market to grow at a ... report, Global Arthroscopy Devices Market 2017-2021, has been prepared based on ... covers the market landscape and its growth prospects over the coming ...
Breaking Medicine Technology: