Predictors of Non-Adherence to Medications in Hypertensive Patients
Abstract
Background: Elevated blood pressure (BP) is one of the leading causes for developing major cardiovascular events and still represents a major public health challenge worldwide. We aimed to provide data on predictors of poor adherence to medication in hypertensive patients in Serbia.
Methods: Observational, analytical study was undertaken at a group of 388 patients who refilled their medications in the Pharmacy Institution, “Apoteka Kragujevac”, Kragujevac, Serbia between Jan and Mar 2019. Afterward, we conducted a case-control study to evaluate the influence of the variables associated with the adherence. We used a self-developed questionnaire and SF-36 to assess the influence of the quality of life on medication adherence.
Results: Results revealed four independent predictors of non-adherence: increased number of medications, living in a city, forgetfulness of the dosing regimen and low energy. The odds of non-adherence were the highest among the participants living in the city and the low energy was the only factor inversely associated with the level of non-adherence.
Conclusion: Many factors were associated with the non-adherence to medication. Further studies are needed to find the most appropriate protocol to promote adherence. The four risk factors (increased number of medications, living in a city, forgetfulness of the dosing regimen and low energy) are associated with non-adherence in adult hypertensive patients.
2. Mills KT, Bundy JD, Kelly TN, et al (2016). Global Disparities of Hypertension Prevalence and Con-trol: A Systematic Analysis of Population-Based Studies from 90 Countries. Circulation, 134(6):441–50.
3. Gupta P, Patel P, Štrauch B, et al (2017). Risk Factors for Nonadherence to Antihypertensive Treat-ment. Hypertension, 69(6):1113–20.
4. Zanatta F, Nissanova E, Świątoniowska-Lonc N, et al (2020). Psychosocial Predictors of Self-Efficacy Related to Self-Reported Adherence in Older Chronic Patients Dealing with Hypertension: A European Study. Patient Prefer Adherence, 14:1709–18.
5. Kotseva K, Wood D, De Bacquer D, et al (2016). EUROASPIRE IV: A European Society of Car-diology survey on the lifestyle, risk factor and ther-apeutic management of coronary patients from 24 European countries. Eur J Prev Cardiol, 23(6):636–48.
6. Abegaz TM, Shehab A, Gebreyohannes EA, et al (2017). Nonadherence to antihypertensive drugs: A systematic review and meta-analysis. Medicine (Baltimore), 96(4):e5641.
7. WHO. Adherence to long-term therapies: evidence for action. WHO. World Health Organization; [cited 2021 Mar 22]. https://apps.who.int/iris/handle/10665/42682
8. Leslie KH, McCowan C, Pell JP (2019). Adherence to cardiovascular medication: a review of systematic reviews. J Public Health (Oxf), 41(1):e84–e94.
9. Tilea I, Petra D, Voidazan S, et al (2018). Treatment adherence among adult hypertensive patients: a cross-sectional retrospective study in primary care in Romania. Patient Prefer Adherence, 12:625–35.
10. Dillon P, Phillips LA, Gallagher P, et al (2018). As-sessing the Multidimensional Relationship Be-tween Medication Beliefs and Adherence in Older Adults With Hypertension Using Polynomial Re-gression. Ann Behav Med, 52(2):146–56.
11. Van der Laan DM, Elders PJM, Boons CCLM, et al (2017). Factors associated with antihypertensive medication non-adherence: a systematic review. J Hum Hypertens, 31(11):687–94.
12. Guzman-Tordecilla DN, Bernal García A, Rodríguez I (2020). Interventions to increase the pharmaco-logical adherence on arterial hypertension in Latin America: a systematic review. Int J Public Health, 65(1):55–64.
13. Tola Gemeda A, Regassa LD, Weldesenbet AB, et al (2020). Adherence to antihypertensive medica-tions and associated factors among hypertensive patients in Ethiopia: Systematic review and meta-analysis. SAGE Open Med, 8:2050312120982459.
14. Biffi A, Rea F, Iannaccone T, et al (2020). Sex differ-ences in the adherence of antihypertensive drugs: a systematic review with meta-analyses. BMJ Open, 10(7):e036418.
15. Adidja NM, Agbor VN, Aminde JA, et al (2018). Non-adherence to antihypertensive pharma-cotherapy in Buea, Cameroon: a cross-sectional community-based study. BMC Cardiovasc Disord, 18(1):150.
16. Dhar L, Dantas J, Ali M (2017). A Systematic Review of Factors Influencing Medication Adherence to Hypertension Treatment in Developing Coun-tries. Open J Epidemiol, 7(3):211–50.
17. Peric S, Vujnic M, Dobricic V, et al (2016). Five-year study of quality of life in myotonic dystrophy. Acta Neurol Scand, 134(5):346–51.
18. Zdravković M, Krotin M, Deljanin-Ilić M, Zdravković D (2010). Quality of life evaluation in cardiovascular diseases. Med Pregl, 63(9–10):701–4.
19. Hedna K, Hakkarainen KM, Gyllensten H, et al (2015). Adherence to Antihypertensive Therapy and Elevated Blood Pressure: Should We Con-sider the Use of Multiple Medications? PLoS One, 10(9):e0137451.
20. Grigoryan L, Pavlik VN, Hyman DJ (2012). Predic-tors of antihypertensive medication adherence in two urban health-care systems. Am J Hypertens, 25(7):735–8.
21. Watanabe JH, Bounthavong M, Chen T, Ney JP (2013). Association of polypharmacy and statin new-user adherence in a Veterans Health Admin-istration population: a retrospective cohort study. Ann Pharmacother, 47(10):1253–9.
22. Teshome DF, Bekele KB, Habitu YA, Gelagay AA (2017). Medication adherence and its associated factors among hypertensive patients attending the Debre Tabor General Hospital, northwest Ethi-opia. Integr Blood Press Control, 10:1–7.
23. Getenet A, Tesfa M, Ferede A, Molla Y (2019). De-terminants of adherence to anti-hypertensive medications among adult hypertensive patients on follow-up in Hawassa Referral Hospital: A case–control study. JRSM Cardiovasc Dis, 8:2048004019892758.
24. Ali MA, Bekele ML, Teklay G (2014). Antihyperten-sive medication non-adherence and its determi-nants among patients on follow up in public hospitals in Northern Ethiopia. Int J Clin Trials, 1(3):95–104.
Files | ||
Issue | Vol 52 No 6 (2023) | |
Section | Original Article(s) | |
DOI | https://doi.org/10.18502/ijph.v52i6.12960 | |
Keywords | ||
Adherence Hypertension Risk factors Questionnaire |
Rights and permissions | |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |