{"id":4556,"date":"2018-12-06T02:18:00","date_gmt":"2018-12-06T07:18:00","guid":{"rendered":"https:\/\/www.med.unc.edu\/medicine\/a-population-health-approach-to-dramatically-reduce-heart-disease-risk\/"},"modified":"2023-06-06T17:22:50","modified_gmt":"2023-06-06T21:22:50","slug":"a-population-health-approach-to-dramatically-reduce-heart-disease-risk","status":"publish","type":"post","link":"https:\/\/www.med.unc.edu\/medicine\/news\/a-population-health-approach-to-dramatically-reduce-heart-disease-risk\/","title":{"rendered":"A Population Health Approach to Dramatically Reduce Heart Disease Risk"},"content":{"rendered":"

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Sam Cykert, MD<\/p>\n

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(Republished from the UNC Health Care and UNC School of Medicine Newsroom)<\/em><\/p>\n

UNC School of Medicine doctors enlisted a network of health care professionals from small primary care practices and used data analytics to help identify North Carolinians at risk for cardiovascular disease. Primary care doctors could use this approach to dramatically reduce heart disease risk for tens of thousands of people across the state.<\/p>\n

Researchers at the UNC School of Medicine and the UNC Gillings School of Global Public Health created a state-wide network of health care professionals in urban, suburban, and rural areas who work in small primary care practices and used existing electronic health records to determine that tens of thousands of people across North Carolina were at high risk of developing cardiovascular disease who had not been identified as high risk before. Primary care doctors across the state then used this analysis to proactively engage patients to reduce their risk.<\/p>\n

This first-of-its-kind study, published<\/a> in Journal of the American Medical Informatics Association<\/i>, was made possible through a $15-million federal grant<\/a> from the Agency for Healthcare Research and Quality\u2019s (AHRQ) Evidence NOW Program to help primary care practices use the latest evidence to improve the heart health of millions of Americans. UNC\u2019s Heart Health Now! Advancing Heart Health in NC Primary Care project was one of seven grantees back in 2015, and this paper is the first published results from their work.<\/p>\n

Heart Health Now! principal investigator Sam Cykert, MD, professor of medicine in the division of general internal medicine and director of the program on health and clinical informatics at UNC-Chapel Hill, said, \u201cThe fact that nearly all patients have digital data now, we can use this information to identify people who are in trouble without necessarily waiting for them to come into the doctor\u2019s office. This is crucial because if we would wait in order to get every single <\/i>piece of information from them at a doctor\u2019s visit, we would be missing opportunities to do good care and save lives.\u201d<\/p>\n

Cykert added, \u201cOver the years, I\u2019ve cared for many people who suffered the debilitating effects of a heart attack or stroke much too early. Because of the lack of sophisticated information systems and processes, doctors could not quickly identify patient risk and prioritize new evidence for care. So many of these folks missed opportunities that could have prevented severe outcomes resulting from premature disease. We now have the systems and processes in place to quickly help many, many people.\u201d<\/p>\n

For this study, Cykert and colleagues formed alliances with 219 primary care clinics, 52 percent of which are in rural areas, to examine 345,440 primary care patients age 40 to 79 \u2013 the age range that allows providers to calculate formal risk scores. In that patient pool, 108,515 lacked cholesterol scores on their electronic health care records. Without those numbers \u2013 total cholesterol plus HDL levels \u2013 primary care doctors lack all the criteria to determine precise cardiovascular risk. There are other indicators, of course, such as smoking status, weight, diabetes, exercise regimen, gender, etc.<\/p>\n

Cykert and colleagues conducted two kinds of analysis to determine the risk of the patients who lacked cholesterol numbers. They analyzed the data from the 236,925 patients for which doctors did have cholesterol numbers and all other criteria. This allowed Cykert\u2019s team to create an equation to estimate the cholesterol levels of patients with missing cholesterol data. This kind of formal \u201cdata imputation\u201d allowed Cykert\u2019s team to determine that 43,205 patients were at high risk of heart disease even though they had never been identified previously.<\/p>\n

But that kind of research analysis isn\u2019t terribly practical for primary care docs running busy practices. So Cykert\u2019s team ran a second simpler analysis: the researchers plugged in very conservative cholesterol numbers for the patients who lacked such data \u2013 170 mg\/dl total cholesterol and 50 mg for HDL. \u201cThose are good numbers,\u201d Cykert said. \u201cBut still, we determined that because of their other indicators, 40,565 patients were at high risk of heart disease and eligible for risk reduction interventions such as aspirin or statins.\u201d<\/p>\n

Over the course of this study, about half of the patients with missing cholesterol data did wind up getting their cholesterol levels checked. \u201cThis allowed us to calculate the sensitivity and specificity of our findings. Turns out, using formal imputation did find a few more patients at high risk but at the cost of finding some patients whose risk was overestimated.\u201d<\/p>\n

The authors said the formal method actually yielded a lower specificity and a higher false-positive rate than did the conservative estimate of 170 and 50.<\/p>\n

\u201cWhether doctors are part of a large health system or in a small rural practice, the fact that all these patients have digital data now means we can identify patients who are at high risk of developing a very serious condition without waiting six months for them to make an appointment. Doctors can engage with these patients immediately and re-engage with them as needed to decrease risk, which is so crucial when it comes to decreasing the number of heart attacks and strokes.\u201d<\/p>\n

Listen to this UNC department of medicine Chair’s Corner Podcast <\/a>about Heart Health Now! with Sam Cykert.<\/em><\/p>\n

Heart Health Now! is based at the Cecil G. Sheps Center for Health Services Research at UNC-Chapel Hill in partnership with the NC Area Health Education Center (AHEC) Program\u2019s Practice Support Services, the UNC School of Medicine, and Community Care of North Carolina (CCNC). Cykert, an adjunct professor at the UNC Gillings School of Global Public Health, is a member of the UNC Sheps Center, the UNC Center for Health Promotion and Disease Prevention, and the UNC Lineberger Comprehensive Cancer Center.<\/i><\/p>\n

Other authors include Darren DeWalt, MD, PhD, the John R. and Helen B. Chambliss Distinguished Professor of Medicine at the UNC School of Medicine; Bryan Weiner, PhD, professor of Global Health at the University of Washington; Michael Pignone, MD, MPH, chair and professor of internal medicine at the University of Texas Dell Medical School; Jason Fine, ScD, professor of biostatistics, and biostatistician Jung In Kim, both in the UNC Gillings School of Global Public Health.<\/i><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

UNC School of Medicine doctors enlisted a network of health care professionals from small primary care practices and used data analytics to help identify North Carolinians at risk for cardiovascular disease. Primary care doctors could use this approach to dramatically reduce heart disease risk for tens of thousands of people across the state.<\/p>\n","protected":false},"author":69419,"featured_media":4557,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"layout":"","cellInformation":"","apiCallInformation":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[98,2,583],"tags":[22],"class_list":["post-4556","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general-medicine","category-news","category-research-news","tag-22","odd"],"acf":[],"yoast_head":"\nA Population Health Approach to Dramatically Reduce Heart Disease Risk | Department of Medicine<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.med.unc.edu\/medicine\/news\/a-population-health-approach-to-dramatically-reduce-heart-disease-risk\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Population Health Approach to Dramatically Reduce Heart Disease Risk | Department of Medicine\" \/>\n<meta property=\"og:description\" content=\"UNC School of Medicine doctors enlisted a network of health care professionals from small primary care practices and used data analytics to help identify North Carolinians at risk for cardiovascular disease. 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