Executive function, working memory, and medication adherence among older adults.

The purpose of this study was to investigate the association between cognitive processes and medication adherence among community-dwelling older adults. Ninety-five participants (M = 78 years) completed a battery of cognitive assessments including measures of executive function, working memory, cued recall, and recognition memory. Medication adherence was examined over 8 weeks for one prescribed medicine by use of an electronic medication-monitoring cap. In a simultaneous regression, the composite of executive function and working memory tasks was the only significant predictor (beta =.44, p <.01). Findings suggest that assessments of executive function and working memory can be used to identify community-dwelling older adults who may be at risk for failure to take medicines as prescribed.