Adherence and barriers to adherence to pharmacotherapy: relationship with morbidities and drug classes in older adults
DOI:
https://doi.org/10.5216/ree.v26.77839Keywords:
Medication Adherence, Barriers to Access of Health Services, Treatment Adherence and Compliance, AgingAbstract
Objective: to verify the relationship of adherence and barriers to adherence to medication with morbidities and classes of medication used by older people. Methods: this is an analytical cross-sectional study carried out at a specialty outpatient clinic in the city of São Paulo (SP, Brazil) between March and November 2019. Data collection involved transcribing prescriptions and applying the Morisky Green test and the Brief Medical Questionnaire (BMQ). The likelihood ratio and Fisher's exact tests were used for analysis (p < 0.05). Results: one hundred seventeen older people participated. No relationship was observed between adherence to pharmacotherapy and morbidities or classes of medication. An association was found between barriers to adherence in the three dimensions of the BMQ and the number of medicines (p < 0.0001); between therapeutic regimen barriers and analgesics (p = 0.020); between belief barriers and analgesics (p = 0.034) and diuretics (p = 0.037); and between recall barriers and antihypertensives (p = 0.0004), statins (p = 0.0024), and oral antidiabetics (p = 0.0134). Conclusion: older adults present different types of barriers to medication adherence. Beliefs and recall barriers are associated with varying classes of drugs, such as antihypertensives, diuretics, statins, oral antidiabetics, and analgesics and anti-inflammatories.
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