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  • Title: Risk of diabetes in a real-world setting among patients initiating antihypertensive therapy with valsartan or amlodipine.
    Author: Weycker D, Edelsberg J, Vincze G, Kjeldsen SE, Jamerson K, Khan ZM, Oster G.
    Journal: J Hum Hypertens; 2007 May; 21(5):374-80. PubMed ID: 17314999.
    Abstract:
    In the Valsartan Antihypertensive Long-Term Use Evaluation (VALUE) trial, the risk of new-onset diabetes was reported to be 23% lower among patients initiating therapy with valsartan versus amlodipine. The objective of our study was to examine whether this finding is generalizable to 'real-world' clinical practice. A retrospective cohort design and a large US health insurance database were employed for analyses. Study subjects included all hypertensive patients, aged >or=35 years, who were free from diabetes and who initiated treatment with valsartan (n=9999) or amlodipine (n=18 698) between January 1999 and March 2005. Unadjusted absolute risks of diabetes were 21.4 (95% confidence interval (CI) 18.9-24.3) and 26.3 (95% CI 24.3-28.3) per 1000 patient-years for valsartan and amlodipine, respectively; the corresponding relative risk (RR) for valsartan was 0.82 (95% CI 0.70-0.94). Multivariate analyses - controlling for age, sex, presence of hypercholesterolemia, cardiovascular disease and kidney disease, and pretreatment medical care expenditures - yielded similar results (RR=0.79, 95% CI 0.68-0.92). Our study thus corroborates the finding from VALUE that diabetes risk is lower for patients who receive valsartan versus amlodipine, and extends this finding to a 'real-world' setting.
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