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- W2241775391 abstract "6095 Background: Studies of noncancer patients (NCP) indicate that medication adherence is poor. Adherence among CS has not been evaluated specifically even though this is a crucial aspect of their ongoing care. Our aims were to 1) characterize adherence to CV medications in CS vs NCP, 2) compare temporal trends in adherence in these 2 cohorts, and 3) determine predictors for adherence. Methods: Using linked data from Medicare, pharmacy assistance programs, and cancer registries, we identified patients discharged from hospital for MI between 1997 and 2004. For those prescribed a statin, β-blocker, ACE inhibitor (ACEi) or all 3, we assessed adherence between CS and propensity score (PS) matched NCP. Adherence was measured using proportion of days covered (PDC), which was the number of days (NOD) of medication supplied divided by NOD in the 1st year after initial prescription. Patient was considered adherent if PDC ≥ 80%. Modified Poisson regression was used to describe trends over time and predictors of adherence. Results: In total, 964 CS and 6,923 NCP received at least 1 CV medication. Median ages were 80.3/80.2 years, 66/68% were female, and 90/91% were white, respectively. Adherence rates were suboptimal in both cohorts (18 to 45%). Between 1997 and 2004, adherence to statins and β-blockers (p<0.01 for both), but not ACEi, increased significantly among NCP (see Table). For CS over the same period, only adherence to statins improved (p<0.01). Of those prescribed all 3 medications, there was improvement in adherence among NCP (p<0.01), but not for CS (p=0.26). Comorbidities, such as heart failure and depression, were associated with poor adherence. Conclusions: Adherence to highly efficacious therapies remains low. While adherence to β-blockers and all 3 medications improved over time for NCP, this trend was not observed among CS. Medication All years P for baseline difference Year of MI P for trend P for difference in trend 1997–1998 1999–2000 2001–2002 2003–2004 Statin CS 45% 0.92 42% 51% 49% 55% < 0.01 0.24 NCP 44% 39% 47% 49% 54% < 0.01 β-blocker CS 40% 0.54 42% 40% 42% 41% 0.78 0.04 NCP 41% 39% 43% 47% 50% < 0.01 ACEi CS 38% 0.06 45% 39% 38% 39% 0.96 0.70 NCP 43% 41% 43% 45% 43% 0.11 All 3 medications CS 18% 0.21 22% 21% 20% 21% 0.26 0.02 NCP 22% 21% 24% 26% 27% < 0.01 No significant financial relationships to disclose." @default.
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- W2241775391 date "2010-05-20" @default.
- W2241775391 modified "2023-09-26" @default.
- W2241775391 title "Adherence to cardiovascular (CV) medications after myocardial infarction (MI) in cancer survivors (CS)." @default.
- W2241775391 doi "https://doi.org/10.1200/jco.2010.28.15_suppl.6095" @default.
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