Spiritual and religious beliefs: do they matter in the medication adherence behaviour of hypertensive patients?

BACKGROUND: Medication non-adherence is often a predominant problem in the management of hypertension and other chronic conditions. In explaining health behaviours, social determinants like spirituality and religiosity are increasingly identified to impact health and treatment. Although a number of researchers have found spirituality and religiosity to be primary resources among persons dealing with chronic disability and illness, studies relating this specifically to medication adherence have been limited. METHODS: Our study sought to examine the interrelationship between spirituality/ religiosity and medication adherence among 400 hypertensive patients 18 years old and above. Spiritual Perspective Scale, Duke Religion Index, and the Morisky Medication Adherence Scale were used to determine spirituality, religiosity and medication adherence respectively. RESULTS: The majority (93.25%) of patients poorly adhered to their medications. While high spiritual and religious beliefs formed core components of the lifestyles of patients, spirituality (p = 0.018) and not religiosity (p = 0.474) related directly with medication non-adherence. Likewise, after controlling for demography and other medical co-morbidities, patients with high spirituality were 2.68 times more likely to be poorly adherent than patients who place lower emphasis on the association between spirituality and health. CONCLUSION: Our study suggests that while spirituality/ religiosity was dominant among hypertensive patients, these spiritual attachments of patients with a supreme being potentially increased their trust in the expectation of divine healing instead of adhering adequately with their anti-hypertensive medications.