Determinants of HIV Treatment Adherence in Ethnically Diverse and Economically Disadvantaged Patients in a Tertiary Hospital, Nigeria
Abstract:
Antiretroviral therapy (ART) has decreased
the mortality and morbidity of HIV/AIDS, and high adherence to ART (>95%) is
necessary for a good therapeutic outcome. Non-adherence can lead to drug-resistant HIV caused
by failure to achieve maximal viral suppression. Little is known about adherence
to ART and its determinants among ethnically diverse and economically disadvantaged
patients. The
purpose of the study was to identify the level of adherence and describe factors that influence
ART adherence among ethnically diverse and economically disadvantaged patients.
This is with a view to providing information that could help health care providers
understand patient motivations for discontinuing their antiretroviral treatment
and helping patients collaboratively develop treatment regimens that facilitate
adherence and optimize the outcomes of HIV/AIDS therapy. A cross-sectional descriptive
survey was used. Data were collected among 400 HIV-infected patients on ARV who
received pretreatment and ongoing adherence counseling and education since 2010
using a self-administered questionnaire. The data were analyzed using Statistical
Package for Social Sciences (SPSS). Findings showed that the self-reported adherence
to the specific timing for taking the medications (medication schedule) was significantly
low (8.3%). The major factors for non-adherence to medication
reported in this study were being busy at work or school, forgetfulness, fasting
and travelling away from home. Also, employment status was associated with poor adherence, which
may be corroborated by the major reason for non-adherence (busy at work or school).
This study is one of the first steps in the exploration of the relationship of factors
responsible and medication adherence among HIV patients. This study used three different
measures of medication adherence. These are patients’ knowledge of the benefits
of taking the drugs, adherence to a medication schedule, and the number of prescribed
doses of medications missed. Health care providers must identify possible barriers to adherence
at the earliest and provide appropriate solutions. These
factors should be considered when designing and implementing adherence interventions.
References:
[1] Achappa B, Madi D, Bhaskaran U, Ramapuram
JT, Rao S, Mahalingam S. Adherence to Antiretroviral Therapy Among People Living
with HIV. N Am J Med Sci. 2013 Mar;5(3):220-3. doi: 10.4103/1947-2714.109196. PMID:
23626959; PMCID: PMC3632027.
[2] Paterson DL, Swindells S, Mohr J, Brester
M, Vergis EN, Squier C, Wagener MM, Singh N. Adherence to protease inhibitor therapy
and outcomes in patients with HIV infection. Annals of internal medicine.
2000 Jul 4;133(1):21-30.
[3] Vrijens B, De Geest S, Hughes DA, Przemyslaw
K, Demonceau J, Ruppar T, Dobbels F, Fargher E, Morrison V, Lewek P, Matyjaszczyk
M. A new taxonomy for describing and defining adherence to medications. British
journal of clinical pharmacology. 2012 May;73(5):691-705.
[4] Fong OW, Ho CF, Fung
LY, et al. Determinants of adherence to highly active antiretroviral therapy (HAART)
in Chinese HIV/AIDS patients. HIV Med 2003;4: 133-8.
[5] National AIDS Council.
The Zambia HIV/AIDS Strategic Framework, 2 2021. Lusaka: Zambia Ministry of Health;
2016.
[6] Gupta M, Das SC. Determinants contributing
for poor adherence to antiretroviral therapy: A hospital record-based study in Balasore,
Odisha. J Family Med Prim Care. 2019 May;8(5):1720-1724. doi: 10.4103/jfmpc.jfmpc_40_19.
PMID: 31198743; PMCID: PMC6559074.
[7] Mhaskar R, Alandikar
V, Emmanuel P, Djulbegovic B, Patel S, Patel A. Adherence to antiretroviral therapy
in India: A systematic review and analysis. Indian J Commun Med. 2013;38(2):74–82.
https://doi.org/10.4103/0970-0218.112435.
[8] Amelia J, Poquette
DJ, Moore BG, Erin E, Morgan IG, Steven PW. Prospective memory and antiretroviral
medication non-adherence in HIV: An analysis of ongoing task delay length using
the memory for intentions screening test. J Int Neuropsychol Soc. 2013; 19:155–161.
https://doi.org/10.1017/S1355617712001051.
[9] Gast A, Mathes T. Medication adherence
influencing factors an (updated) overview of systematic reviews. Systematic reviews.
2019 Dec;8(1):1-7.
[10] Schäfer C. Patientencompliance. Springer
Fachmedien Wiesbaden; 2017.
[11] Peltzer K, Preez NF,
Ramlagan S, Fomundam H, Anderson J, Chanetsa L. Antiretrovirals and the use of traditional,
complementary and alternative medicine by HIV patients in Kwazulu-Natal, South Africa:
A longitudinal study. Afr J Tradit Complement Altern Med. 2011;8(4):337–345.
https://doi.org/10.4314/ajtcam.v8i4.l.
[12] Kagee A, Remien RH,
Berkman A, Hoffman S, Campos L, Swartz L. Structural barriers to ART adherence in
Southern Africa: Challenges and potential ways forward. Global Public Health.
2011;6(1):83–97. https://doi.org/10.1080/17441691003796387.
[13] Masci JR. Outpatient
management of HIV infection. 4th ed. Boka Raton, FL: CRC Press; 2011.
[14] Coetzee B, Kagee A,
Vermeulen N. Structural barriers to adherence to antiretroviral therapy in a resource-constrained
setting: The perspectives of health care providers. AIDS Care. 2011;23(2):146–151.
https://doi.org/10.1080/09540121.2010.498874.
[15] Ogbochi M, Naomi NM,
Jerry WL, Peter CG, Gisele M. Determinants of antiretroviral therapy adherence among
women in Southern Malawi: Healthcare providers’ perspectives. AIDS Res Treatment.
2014. https://doi.org/10.1155/2014/489370.
[16] Young S, Wheeler A,
McCoy S, Weiser SD. A review of the role of food insecurity in adherence to care
and treatment among adult and paediatric populations living with HIV and AIDS. AIDS
Behav. 2014;18(5):505–515. https://doi.org/10.1007/s10461-013-0547-4.
[17] Oku AO, Owoaje ET,
Ige OK, Oyo-ita A. Prevalence and determinants of adherence to HAART amongst PLHIV
in a tertiary health facility in south-south Nigeria. BMC Infect Dis. 2013;
13:401.
[18] Basti BD, Mahesh V, Bant DD, Bathija
GV. Factors affecting antiretroviral treatment adherence among people living with
human immunodeficiency virus/acquired immunodeficiency syndrome: A prospective study.
J Family Med Prim Care. 2017 Jul-Sep;6(3):482-486. doi: 10.4103/2249-4863.222014.
PMID: 29416993; PMCID: PMC5787940.
[19] Ingersoll KS, Cohen J. The impact of
medication regimen factors on adherence to chronic treatment: A review of literature.
J Behav Med 2008; 31:213-24.
[20] Agu KA, Ochei UM, Oparah
AC, and Onoh OU. Treatment outcomes in patients receiving combination ARV therapy
in Central hospital, Benin City, Nigeria. Trop. J. Pharm. Res. 2010; 9: 1-10.
[21] Schneider J, Kaplan SH, Greenfield S,
Li W, Wilson IB. Better physician-patient relationships are associated with higher
reported adherence to antiretroviral therapy in patients with HIV infection. Journal
of General Internal Medicine. 2004; 19(11):1096-1103.
[22] Ammassari A, Trotta
MP, Murri R, Castelli F, Narciso P, Noto P, Vecchiet J, Monforte AD, Wu AW, and
Antinori A. Correlates and predictors of
adherence to highly active antiretroviral therapy: overview of published literature.
Journal of Acquired Immune Deficiency Syndromes 2002; 31(3): S123-127.
[23]
Murphy RL, Kivel NM, Zala
C, Ochoa C, Tharnish P, Matthew J, et al. Antiviral activity and tolerability of
amdoxovir with zidovudine in a randomized double-blind placebo-controlled study
in HIV-1 infected individuals. Antivir Ther. 2010; 15:185–92.
[24]
Möbius U, Lubach-Ruitman
M, Castro-Frenzel B, Stoll M, Esser S, Voigt E, Christensen S, Rump JA, Fätkenheuer
G, Behrens GM, Schmidt RE. Switching to atazanavir improves metabolic disorders
in antiretroviral-experienced patients with severe hyperlipidemia. J Acquir Immune
Defic Syndr. 2005 1;39(2):174-80. PMID: 15905733.
[25]
Desai M, Iyer G, Dikshit
RK. Antiretroviral drugs: critical issues and recent advances. Indian J Pharmacol.
2012;44(3):288-298. doi:10.4103/0253-7613.96296.
[26]
Johnson MO, Charlebois E,
Morin SF, Catz SL, Goldstein RB, Remien RH, Rotheram-Borus MJ, Mickalian JD, Kittel
L, Samimy-Muzaffar F, Lightfoot MA. Perceived adverse effects of antiretroviral
therapy. Journal of pain and symptom management. 2005 1;29(2):193-205.
[27]
World Health Organization.
Rapid advice: Antiretroviral therapy for HIV infection
in adults and adolescents. [Accessed on 2021 June]. Available from: http://www.who.int/hiv/pub/arv/rapid_advice_art.pdf.
[28]
De Maat MM, De Boer A, Koks
CH, Mulder JW, Meenhorst PL, van Gorp EC, Mairuhu AT, Huitema AD, Beijnen JH. Evaluation
of clinical pharmacist interventions on drug interactions in outpatient pharmaceutical
HIV‐care. Journal of clinical pharmacy and therapeutics. 2004, 29(2):121-30.