Researchers examined how the 2013 guidance for cholesterol management impacted patients in the long run by examining nationwide trends in total cholesterol, triglycerides and LDL-C, as well as high cholesterol awareness and statin usage. The Centers for Disease Control and Prevention National Health and Nutrition Examination Survey (NHANES) was used to assess trends in lipid levels between 2005-2006, 2011-2014 and 2015-2016 (before, during and after the guideline release). Since there were less than 50 people in each NHANES cycle with an LDL-C of greater than or equal to 190 mg/dL, this group was excluded, along with people who were under the age of 20, pregnant or breastfeeding.
A total of 32,278 patients were assessed, and among Americans taking lipid-lowering medication, the age-adjusted total cholesterol declined from 206 mg/dL in 2005-2006 to 191 mg/dL in 2013-2014, with an additional drop to 187 mg/dl in 2015-2016. Average LDL cholesterol among adults taking lipid-lowering medication decreased from 122 mg/dL in 2005-2006 to 107 mg/dL in 2013-2014 to 101 mg/dL in 2015-2016.
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Researchers found that the number of people being told they had high cholesterol increased from 63.6% in 2005-2006 to 69.4% in 2011-2012. The percentage remained unchanged through 2015-2016. The proportion of adults eligible for statin use that were actually taking a statin increased from 41.3% in 2005-2006 to 49.2% in 2015-2016. This percentage was higher among American adults with diabetes, which increased from 48.3% in 2005-2006 to 60.2% in 2015-2016.
Statin use among the subgroup of patients with a 10-year predicted ASCVD risk of greater than or equal to 7.5%, which is a group designated in the guideline for whom statins would have the most benefit, remained at approximately 30% with a modest decrease of 4% in 2015-2016. Researchers said this decrease in statin use could have stemmed from the recommendations in the guideline to have a risk-benefit discussion with shared decision-making when deciding on a statin prescription.
“From a public health perspective, the 2013 guidelines have seemingly improved overall cholesterol levels among American adults on statins,” said Pankaj Arora, MD, senior author of the study and physician scientist in the Division of Cardiovascular Disease, University of Alabama at Birmingham. “Targeting gaps in clinician guideline education and in patients’ perception on statin safety may improve guideline dissemination further.”
Source: Eurekalert
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