Effect of a Physician/Pharmacist Collaborative Care Model on Time in Target Range for Systolic Blood Pressure: Post Hoc Analysis of the CAPTION Trial.
2021
Longer time in target range (TTR) for systolic blood pressure (SBP) is associated with a lower risk of cardiovascular events. Team-based care improves SBP control but its effect on the consistency of SBP control over time is unknown. This post hoc analysis used data from a cluster-randomized trial of a physician/pharmacist collaborative model that randomized medical offices to either a 9- or 24-month pharmacist intervention or control group. TTR for SBP was calculated using linear interpolation and an SBP range of 110 to 130 mm Hg. TTR is reported as median values and group comparisons assessed using the Kruskal-Wallis test. Of the 625 participants enrolled, 524 had 9-month and 366 had 24-month SBP data. Participants were a median 59 years old, 59% female, and 52% minority. After 24 months, the median TTR for SBP was 31.9% and 29.8% for the 9- and 24-month intervention groups, respectively, compared with 19% in the control group (P=0.0068). This observation persisted in the subgroup of participants with diabetes or chronic kidney disease and minorities. A longer TTR was not associated with an increased risk of adverse drug events. Time to first observed SBP in the target range was shorter in the intervention group compared with control (270 versus 365 days; P=0.0047). A physician/pharmacist collaborative care model achieved longer TTR for SBP compared with control (usual care).
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