Factors affecting medication adherence in patients with hypertension.

The aim of this study descriptive study was to evaluate concordance with medication and those factors that affect the use of medicine in patients with hypertension. Data were collected using a questionnaire completed by 750 patients with hypertension between December 25, 2003, and April 30, 2004, in an outpatient hypertension clinic in Erzincan, Turkey. It was found that 57.9% of the patients did not use their medicines as prescribed. Forgetfulness, aloneness, and negligence were ranked as the top three reasons for this non-concordance, accounting for almost half (49.3%) of all patients with hypertension studied; price (expensive medicines) accounted for another quarter (26.5%). A statistically significant relationship with non-concordance was found for age, education level and profession. Patients' lack of knowledge related to the complications of hypertension was also found to have a statistically significant relationship with not taking medicines as prescribed. Gender, location of residence and salary were not found to be statistically related to concordance. These results indicate the need to educate patients with hypertension on how to use their medicine regularly and indicate also the target populations for this.