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Intensity of lipid-lowering therapy and low-density lipoprotein cholesterol goal attainment among the elderly before and after the 2004 National Cholesterol Education Program Adult Treatment Panel III update.

Nichols GA, Nag S, Chan W

Kaiser Permanente Center for Health Research, Portland, OR 97227-1098, USA. greg.nichols@kpchr.org

BACKGROUND: In 2004, the Coordinating Committee of the National Cholesterol Education Program issued an update to the Adult Treatment Panel III guidelines on cholesterol management (the Update). Our objectives were to compare the proportion of elderly patients receiving intensive or minimal-guideline lipid-lowering therapy and the proportions meeting low-density lipoprotein cholesterol (LDL-C) goals before and after the update. METHODS: We used dispense records from Kaiser Permanente Northwest (Portland, OR) to identify elderly patients who received statin therapy in 2003 (n = 14425) and 2005 (n = 19422) and laboratory records to assess LDL-C goal attainment. RESULTS: Among new statin initiators, 85.4% of very-high-risk patients received minimal-guideline therapy in 2005, compared with 65.3% (P < .0001) in 2003. Of all new initiators, <1% received very aggressive therapy in either year (0.4% vs 0.3%, P = .315). Overall, 77.7% and 59.0% of ongoing users in 2005 and 2003, respectively, received minimal-guideline therapy (P < .0001). Low-density lipoprotein cholesterol goal attainment did not differ between 2003 and 2005 continuing statin users. Among very-high-risk patients who initiated statin treatment, a significantly greater proportion of patients in 2005 versus 2003 attained the optional goal of <70 mg/dL (45.5% vs 34.4% P = .014). However, there was no significant difference in the proportion attaining <100 mg/dL (77.8% vs 81.8%, P = .281). CONCLUSION: After the Update, more elderly patients were receiving intensive or minimal-guideline statin therapy. Low-density lipoprotein cholesterol goal attainment was isolated and appeared to occur by shifting already well-controlled patients to lower LDL-C levels. Although these findings may translate into less overall coronary heart disease risk, more aggressive lipid-lowering therapy would likely further reduce risk.

Published 27 August 2007 in Am Heart J, 154(3): 554-60.
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