Dr. Yuting Zhang from HPM published an article in JAMA Internal Medicine online first on February 11, 2013. http://archinte.jamanetwork.com/article.aspx?articleid=1570085
In this study, Dr. Zhang and coauthors examine geographic variation in medication adherence among patients with heart failure. They found that on average 52% of patients with heart failure were adherent (defined as a medication possession ratio≥0.8) for heart failure medications, and the proportion of adherent patients varied substantially by hospital-referral region, ranging from 36% to 71%. There was little correlation between drug spending and adherence, suggesting that areas with higher drug spending did not have systematically better adherence. Coauthors on this article include Shang-Hua Wu, A. Mark Fendrick and Katherine Baicker.