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The negative association of independent personality and medication adherence
Kathleen C Insel1, Sheryl L Reminger, Chao-Pin Hsiao
1University of Arizona, College of Nursing, P.O. Box 210203, Tucson, AZ 85721, USA. insel@nursing.arizona.edu.
Objective:
This investigation examines the association of personality factors and medication adherence among older adults.
Method:
The Six-Factor Personality Questionnaire was mailed to participants involved in a medication adherence investigation. Medication adherence was monitored with an electronic monitoring cap for 8 weeks for one prescribed daily medication.
Results:
Sixty older adults, mean age 77 years (range 67 to 93 years), returned the questionnaire (69% response rate). Stepwise regression analysis demonstrates that when age and level of education are controlled, independence predicts medication adherence. This factor demonstrates a negative relationship with adherence suggesting that higher levels of independence may be related to lower adherence to prescribed medication. The facet component self-reliance is predictive of poor medication adherence.
Discussion:
The finding that higher self-reliance is associated with lower adherence in an older population deserves further investigation and clinical consideration.
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