Bipolar spectrum disorders and associated factors among adults attending an antiretroviral therapy clinic in Gedeo zone health centers, southern Ethiopia
Received 16 September 2018
Accepted for publication 17 January 2019
Published 20 February 2019 Volume 2019:15 Pages 503—509
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Roger Pinder
Zelalem Belayneh,1 Wagaye Alemu,2 Birhanie Mekuriaw,1 Zegeye Abebe3
1Department of Psychiatry, College of Health and Medical Science, Dilla University, Dilla, Ethiopia; 2Department of Epidemiology and Biostatistics, College of Health and Medical Science, Dilla University, Dilla, Ethiopia; 3Department of Human Nutrition, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
Background: Bipolar spectrum disorders (BPSDs) are more common among HIV-positive individuals than the general population. Although BPSDs have very diverse and devastating consequences (immune suppression, cognitive impairment and poor medication adherence), little is known about BPSDs among HIV-positive individuals in Ethiopia. Therefore, this study was aimed to assess the prevalence and associated factors of BPSDs among adults attending antiretroviral therapy (ART) clinics in Gedeo zone health centers, southern Ethiopia.
Patients and methods: An institutional-based cross-sectional study was conducted by screening 412 randomly selected HIV-positive individuals using Mood Disorder Questionnaire. SPSS version 20 was used for data analysis. Bivariable and multivariable logistic regression models were fitted to identify factors associated with BPSDs. Adjusted OR (AOR) with corresponding 95% CI was computed to determine the association.
Results: Of the total 412 participants, 11.2% were screened positive for BPSDs. Lower CD4 count (AOR =2.97; 95% CI: 1.11, 7.90), past history of mental health problem (AOR =3.35; 95% CI: 1.576, 7.144), poor social support (AOR =2.6; 95% CI: 1.06, 6.63) and poor ART drug adherence (AOR =3.59; 95% CI: 1.78, 7.21) had a positive association with BPSDs.
Conclusion: In this study, the prevalence of BPSDs was high among adult patients attending ART clinics in Gedeo zone health centers. Poor social support, poor ART drug adherence, lower CD4 level and history of mental illness had statistically significant association with BPSDs. This demonstrates a need for the integration of Mental Health and Psycho Social Support with HIV/AIDS care services. Moreover, establishing good social support and controlling ART adherence were found to be very crucial too.
Keywords: bipolar spectrum disorder, HIV/AIDS, mental health, Ethiopia, mood disorders, Gedeo, Dilla
Corrigendum for this paper has been published
Bipolar spectrum disorder (BPSD) is a cluster of severe psychiatric illnesses characterized by alternating manic and depressed mood states with associated disturbances in energy levels, sleep, appetite, increased libido and cognition.1 According to the WHO 2008 report, >29.5 million persons are living with BPSD globally. It was also estimated as the seventh leading cause of non-fatal burden of diseases.1–3 The lifetime prevalence of BPSDs ranges from 2.4% to 15.1% in the general population.4 But this figure increases to high rates among HIV-positive individuals.5–7
Manic and hypomanic episodes of BPSDs are characterized by a period of time where the patient has an elevated, expansive or irritable mood, and some typical symptoms such as elevated self-esteem, disinhibition and hypersexuality are present.8 In addition, people with BPSDs have higher rates of alcohol and illicit drug abuse,9 which increase the risk of further HIV transmission due to the impulse control difficulty of BPSDs.10–12 HIV-positive individuals with BPSD also appear to be at a higher risk for engagement in behaviors associated with transmission of HIV due to the episodic nature and sexual arousal effects of the disorder.10,13,14
Studies showed that HIV-positive individuals with comorbid bipolar disorders were less likely to be antiretroviral therapy (ART) adherent15,16 and were at high risk of immune suppression,17,18 other opportunistic infections and mental health problems.19 Thus, BPSDs are very complex and need a holistic approach to understand them.20
The origin and interdependency in terms of switching from one subtype to another and the treatment response are also amazingly interesting in the area of bipolar disorders.21 However, the focus of most studies is on bipolar I disorder, which is the most severe form of the BPSDs, and therefore, the large group of BPSDs whose prevalence ranges from 3% to 5% is neglected.22–24 By taking this into consideration, the current study was aimed to assess BPSDs and associated factors among adults attending ART clinics of Gedeo zone health centers.
Patients and methods
Study design and setting
An institutional-based cross-sectional study was conducted among adult patients attending ART clinic in Gedeo zone health centers from April 1 to May 1 2017. Gedeo zone is found in South Nation Nationality and Peoples’ Regional States of Ethiopia, 359 km southeast of Addis Ababa (the capital city of Ethiopia). In the zone, there are about 39 health centers, and only 7 of them provide ART service. All the health centers had no mental health professionals during the data collection period.
Sample size determination and sampling procedure
The assumptions made for sample size calculation were a 95% CI and 50% expected prevalence of BPSDs to get the maximum sample size and a 5% margin of error. The systematic random sampling method was employed to select the study participants. Initially, the expected total number of adult patients attending the ART clinic during the study period was calculated. Then, the number of adult patients included in each health center was determined based on the proportionate population size. The sampling interval (K) was determined by dividing the total number of adult patients attending the ART clinic from each health center by the sample size to be drawn from that health center. To determine the starting point, lottery method was used to select one adult patient between one and K. Subsequently, the K value was added until the sample size allocated to each health center was reached.
Data collection instruments and procedures
The data were collected by five trained psychiatric nurses supervised by two MSc mental health professionals. Interviewer-administered questionnaire was used to collect data. The questionnaire was translated into Amharic and Gedeu’fa (the commonly spoken languages in the study area) and finally back to English to check its consistency. The translated questionnaire was pre-tested among 22 (5%) patients attending ART clinic at Chuko health center (not included in the study) and minor modification was done. The questionnaire had six parts, consisting of sociodemographic characteristics, Oslo-3 social support scale, HIV/AIDS-related factors, Morisky medication adherence scale, Alcohol Use Disorders Identification Test (AUDIT) and Mood Disorder Questionnaire (MDQ) tool.
The outcome variable (BPSD) was measured using the MDQ tool. The MDQ consists of three parts including 13 Yes/No questions to assess the presence of symptoms and behaviors related to mania/hypomania as per the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria and clinical experience. Additionally, two more questions were asked for screening purpose. The first question was to inquire about the co-occurrence of the defined symptoms and the second was about the severity of the symptoms (ranging from “no problem” to “serious problem”). The MDQ is a structured questionnaire used to assess BPSDs in many clinical studies.25,26 The tool has been found to have good reliability and validity for the screening of BPSDs with a sensitivity and specificity of 0.90 and 0.88, respectively.27–30
In this study, individuals were considered positive for BPSDs when the following condition was satisfied: if individuals responded “yes” for seven or more symptoms among the first 13 “Yes” or “No” questions, and the co-occurrence of the symptoms and the severity of symptoms was either moderate or serious.30,31
The level of alcohol consumption among respondents was measured using the AUDIT. AUDIT is a screening instrument for alcohol use disorder including harmful or hazardous alcohol use and alcohol dependence.32,33 AUDIT is a 10-item questionnaire, which covers the domains of alcohol consumption, drinking behavior and alcohol-related problems. Responses of each question are scored from 0 to 4, giving a maximum possible score of 40. A score of 8 or more is associated with harmful or hazardous drinking.34
The respondent’s social support level was assessed by Oslo-3 social support scale, which has been used in different studies and has a good reliability.14 Similarly, Morisky 4-item medication adherence scale was used to assess the level of ART adherence.49 HIV/AIDS-related characteristics such as year of follow-up, clinical stage and recent CD4 level were collected from the clinical records of the hospital.
Data processing and analysis
First, the data were checked for their completeness and consistency. Then, they were coded and entered into the computer using EPi Info version-5 software and transformed into SPSS version 20 for analysis. Descriptive statistics were carried out to measure the magnitude and distribution of BPSDs, and the result was presented using text and tables. Bivariable and multivariable analyses were fitted to identify factors associated with BPSDs. Variables with a P-value of <0.25 in the bivariable analysis were also fitted into the multivariable logistic regression analysis. In multivariable analysis, variables with a P-value of <0.05 were considered statistically significant. Adjusted OR with the corresponding 95% CI was calculated to show the strength of the association.
Ethics approval and consent to participate
Ethical clearance was obtained from Dilla University, and a supportive letter was secured from Gedeo zone Health Department Office. Written informed consent was obtained from each participant after a brief explanation was given to them about the scope and objectives of the study prior to the interview. Personal identifiers such as name and phone numbers of the study participants had never been recorded for the purpose of anonymity. The collected information was kept confidential and used only for the purpose of study.
Sociodemographic characteristics of respondents
A total of 412 participants were included in this study, with a response rate of 97.3%. The mean (±SD) age of the respondents was 31 (±8.9) years. More than a quarter (28.6%) of the participants was within the age range of 43–54 years, and 58.7% were females. Regarding the marital status of participants, 31.7% were divorced and only 23.5%were married and living together (Table 1).
Clinical characteristics of the study participants
Among the study participants, around 41% had poor ART medication adherence. About 77.9% had hazardous levels of alcohol consumption. Regarding the clinical stage, 38.3% of the respondents were within the WHO clinical stage III and about 40.8% had CD4 count between 200 and 500 cells/mL3. Around 27% and 16.5% of the participants had poor social support and past history of mental health problems, respectively.
Prevalence of BPDs and factors associated with BPSD
Of the total 412 participants, 11.2% screened positive for BPSDs. Among these, 60.8% had <5 years of follow-up visit and 63% had past psychiatric complaints. About 50% of the participants with stage IV WHO clinical stage of AIDS had BPSDs. The prevalence rates of BPSDs among individuals with poor ART drug adherence and hazardous alcohol drinking were 50% and 34.7%, respectively.
Based on the result of bivariable analysis, educational level, residency, years of follow-up, CD4 level, history of mental illness, social support, drug adherence and alcohol consumption were candidates for multivariable analysis. In the multivariable analysis, lower CD4 count, past history of mental health, poor social support and poor ART drug adherence had statically significant association with BPSDs (Table 2).
Studies reported that the estimated prevalence of bipolar disorders ranges from 2.4% to 15.1% in the general population, but it is expected to be higher among HIV-positive individuals than the general population.4 Findings from the current study showed that the prevalence of BPSDs among patients attending ART clinic was 11.2% with 95% CI being 8.5%–14.1%. This finding is in line with another similar study conducted in Brazil (13.2%)5 and the National Epidemiologic Survey (10.8%).35 However, this finding is higher than the finding from Maryland (8%).7 This discrepancy might be explained by the difference in the study tools used to assess BSPDs. This study used MDQ, which has a potential to screen other clinical and subclinical BPSDs in addition to mania.36
The current study showed a lower prevalence of BPSD than those reported in studies conducted in California (14.2%)37 and Uganda (43.2%).38 This difference might be due to sociocultural difference of the study population and the special focus of these studies on the mild forms of bipolar disorders (bipolar II and cyclothymic disorder), which might be observed even among relatively normal individuals.5
It is documented that advanced HIV disease and lower CD4 count are associated with BSPD.43,44 This study confirmed that HIV/AIDS patients with CD4 count <200 cells/mL3 had 2.97 times increased risk of developing BSPDs compared to individuals having a CD4 count greater than 500 cells/mL3. This is due to the neuropsychiatric complications of advanced HIV diseases, which may be due to the direct or indirect effects of HIV on the brain, opportunistic infections or the effects of stress and depression due to being positive for HIV/AID.39,40
In this study, the risks of developing BPSDs among clients with poor social support were 2.65 times higher as compared to their counterparts. This finding is supported by other previous studies.41,42 The possible explanation is that strong social support is a protective factor and good prognostic indicator of BPSD.43,44
Similarly, the risk of developing BPSD among participants with past history of mental illness was 3.35 times higher than those without past history of mental illness. This idea is supported by other studies, indicating that it is due to the high comorbidity and episodic nature of the illness.45,46
Finally, the risk of developing BPSD among poor ART drug-adherent individuals was 1.7 times higher as compared to their counterparts. The finding is in line with other studies.47,48 This might be due to the protection afforded by ART drugs from neuropathologic penetration of HIV and opportunistic infection in the brain. In addition, ART drugs can improve the quality of life of HIV patients.47,48
This study showed that the prevalence of BPSDs was high among adult patients attending ART clinics in Gedeo zone health centers. Poor social support, poor ART drug adherence, lower CD4 level and history of mental illness had statistically significant association with BPSDs. This demonstrates a need for the integration of Mental Health and Psycho Social Support with HIV/AIDS care services. Moreover, establishing good social support and controlling ART adherence are very crucial too.
This study assessed the prevalence and associated factors of BPSDs including all health centers in the study area. But it has some limitations. First, MDQ is a screening tool for BPSDs in gross and the diagnosis of specific BPSDs has never been attempted. This might overestimate the prevalence of BPSDs. Second, the cross-sectional nature of the study may not show the direct cause and effect relationship.
Data sharing statement
All the data included in the manuscript can be accessed from the corresponding author Zelalem Belayneh upon request through email at [email protected].
The authors would like to acknowledge Dilla University for ethical clearance. The authors would also like to thank the study participants, data collectors and all staffs working at Gedeo zone health center for their dedicated cooperation. Finally, the authors would like to acknowledge Australian and New Zealand Journal of Psychiatry as the abstract of this paper was presented as “Poster Abstracts” in a conference and the Poster Abstracts were published in Australian and New Zealand Journal of Psychiatry.
All authors contributed to data analysis, drafting or revising the article, gave final approval of the version to be published, and agree to be accountable for all aspects of the work.
The authors report no conflicts of interest in this work.
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