USPSTF: Evidence Lacking for Adding Nontraditional Risk Factors to CVD
Researchers assessed the evidence on benefits and harms of adding ABI, hsCRP, and CAC to traditional CVD risk assessment.
HealthDay News — The U.S. Preventive Services Task Force concludes that there is currently insufficient evidence to assess the benefits and harms of adding nontraditional risk factors to traditional cardiovascular disease (CVD) risk assessment in asymptomatic adults. These findings form the basis for a final recommendation statement published online July 10 in the Journal of the American Medical Association.
Jennifer S. Lin, M.D., from Kaiser Permanente Research Affiliates in Portland, Ore., and colleagues reviewed the evidence on the benefits and harms of the ankle-brachial index (ABI), high-sensitivity C-reactive protein (hsCRP) level, and coronary artery calcium (CAC) score in CVD risk assessment.
The researchers found adequate evidence that the addition of the ABI, hsCRP, or CAC score could make small improvements in both discrimination and reclassification, with variation in the magnitude and consistency of improvement. The evidence was insufficient to assess whether treatment decisions guided by these scores, in addition to traditional risk factors, could reduce incidence of cardiovascular events or mortality. Based on these findings, the Task Force concluded that the evidence is currently inadequate for assessing the balance of benefits and harms of adding these nontraditional risk factors to the traditional risk assessment of CVD in asymptomatic adults (I statement).
"More research is needed to know if adding these three tests for nontraditional risk factors to CVD risk assessment can help improve our ability to prevent heart attack or stroke," Task Force member Michael Barry, M.D., said in a statement.