Frequency and predictors of compliance among patients taking antihypertensive medicines

Medication compliance, an important aspect in the treatment of chronic disease research, is often assessed using pill count method. The patient perception is usually not addressed objectively. The present study was conducted to assess patient cognizance, prevalence and predictors of compliance towards antihypertensive therapy in Indian patients.

Adult patients taking antihypertensive medicines were included from the cardiology and geriatric OPDs of a tertiary care hospital in India. Socio-demographic data and disease awareness information was collected. Hill-Bone high blood pressure compliance scale was administered for compliance score.

For the 452 participants, mean age was 54.6 ± 13.7 years with approximate 2:1 ratio of males to females. Cronbach's alpha value of 0.7 for Hill Bone compliance scale showed good internal consistency. More than 80% participants had a score of ≥80%, showing good compliance among Indian patients. Factors that were significantly associated with uncontrolled blood pressure with correlation analysis were age, gender and awareness regarding disease.

The study suggests that Hill-Bone high blood pressure compliance scale may be useful for assessing compliance in Indian population. An age appropriate intervention for continued compliance should be considered to improve compliance and hence, reduce long term sequelae of hypertension.