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Associations between high 1-year discount rate and low adherence assessed by the 4-item Krousel-Wood Medication Adherence Scale, overall and by sex, race, and age. Models adjusted for age (<65 years vs. ≥65 years), sex, race, marital status, education (minus the stratifying variable). P-value for interaction come from separate fully adjusted models for overall sample. *P < 0.05, **P < 0.01.
