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Fulltext An Exploratory Factor Analysis of a Brief Self-Report Scale to Detect Neurocognitive Impairment Among Participants Enrolled in Methadone Maintenance Therapy

Copenhaver M, Shrestha R, Wickersham JA, Weikum D, Altice FL

J Subst Abuse Treat, 2016 Apr;63:61-5.
PMID: 26879859 DOI: 10.1016/j.jsat.2016.01.002

The present study examines the factor structure of the existing Neuropsychological Impairment Scale (NIS) through the use of exploratory factor analysis (EFA). The NIS is a brief, self-report measure originally designed to assess neurocognitive impairment (NCI) by having patients rate a range of items that may influence cognitive functioning. Stabilized patients on methadone maintenance therapy (MMT; N=339) in New Haven, CT who reported drug- or sex-related HIV risk behaviors in the past 6 months were administered the full 95-item NIS. An EFA was then conducted using principal axis factoring and orthogonal varimax rotation. The EFA resulted in retaining 57 items, with a 9-factor solution that explained 54.8% of the overall variance. The revised 9-factor measure--now referred to as the Brief Inventory of Neuro-cognitive Impairment (BINI)--showed a diverse set of factors with excellent to good reliability (i.e., F1 α=0.97 to F9 α=0.73). This EFA suggests the potential utility of using the BINI in the context of addiction treatment. Further research should examine the utility of this tool within other clinical care settings.

Matched MeSH terms: Opioid-Related Disorders/drug therapy
A satisfaction survey of opioid-dependent patients with methadone maintenance treatment

Aziz Z, Chong NJ

J Subst Abuse Treat, 2015 Jun;53:47-51.
PMID: 25616750 DOI: 10.1016/j.jsat.2014.12.008

The aim of this study was to examine opioid-dependent patients' satisfaction with the methadone maintenance treatment (MMT) program in Malaysia and identify predictors of satisfaction. We used an interviewer-administered questionnaire developed and validated by Rankin Court, New South Wales, Australia. Of 502 patients approached in 11 MMT centers in Malaysia, 425 agreed to participate giving a response rate of 85%. In terms of overall satisfaction, a high percentage of respondents (85%) were satisfied with the MMT services. A logistic regression analysis showed that only "centres" and marital status were associated with overall satisfaction and that being single (OR 3.31; 95% CI 1.52 to 7.20) or married (OR 4.06; 95% CI 1.76 to 9.38) was associated with higher odds of overall satisfaction compared to being divorced or separated. An analysis of the responses pertaining to the most desired changes required at the center found dosing hours, waiting area and staff shortages to be common. The findings acquired from this survey will be useful to attain a clearer perspective on what aspects of the MMT service need to be reviewed for the improvement of service delivery.

Matched MeSH terms: Opioid-Related Disorders/drug therapy
Fulltext The Future of Opioid Agonist Therapies in Ukraine: A Qualitative Assessment of Multilevel Barriers and Ways Forward to Promote Retention in Treatment

Bojko MJ, Mazhnaya A, Marcus R, Makarenko I, Islam Z, Filippovych S, et al.

J Subst Abuse Treat, 2016 07;66:37-47.
PMID: 27211995 DOI: 10.1016/j.jsat.2016.03.003

Opioid agonist therapies (OAT) to treat opioid addiction in people who inject drugs (PWID) began in Ukraine in 2004. Scale-up of OAT, however, has been hampered by both low enrollment and high attrition. To better understand the factors influencing OAT retention among PWID in Ukraine, qualitative data from 199 PWIDs were collected during 25 focus groups conducted in five Ukrainian cities from February to April 2013. The experiences of PWID who were currently or previously on OAT or currently trying to access OAT were analyzed to identify entry and retention barriers encountered. Transcribed data were analyzed using a grounded theory approach. Individual beliefs about OAT, particularly misaligned treatment goals between clients and providers, influenced PWID's treatment seeking behaviors. Multiple programmatic and structural issues, including inconvenient hours and treatment site locations, complicated dosing regimens, inflexible medication dispensing guidelines, and mistreatment by clinic and medical staff also strongly influenced OAT retention. Findings suggest the need for both programmatic and policy-level structural changes such as revising legal regulations covering OAT dispensing, formalizing prescription dosing policies and making OAT more available through other sites, including primary care settings as a way to improve treatment retention. Quality improvement interventions that target treatment settings could also be deployed to overcome healthcare delivery barriers. Additional patient education and medical professional development around establishing realistic treatment goals as well as community awareness campaigns that address the myths and fears associated with OAT can be leveraged to overcome individual, family and community-level barriers.

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
Fulltext The effects of opioid-agonist treatments on HIV risk and social stability: A mixed methods study of women with opioid use disorder in Ukraine

Hoff E, Marcus R, Bojko MJ, Makarenko I, Mazhnaya A, Altice FL, et al.

J Subst Abuse Treat, 2017 Dec;83:36-44.
PMID: 29129194 DOI: 10.1016/j.jsat.2017.10.003
Matched MeSH terms: Opioid-Related Disorders/drug therapy
A 12-month evaluation of health-related quality of life outcomes of methadone maintenance program in a rural Malaysian sample

Lua PL, Talib NS

Subst Use Misuse, 2012 Aug;47(10):1100-5.
PMID: 22545914 DOI: 10.3109/10826084.2012.679840

This paper focuses on the evaluation of addiction program effectiveness which involves changes in health-related quality of life (HRQoL) profile. This study was conducted from 2007 until 2010 at a rural methadone maintenance treatment center in Malaysia to assess HRQoL outcomes before and after treatment. Fifty-seven respondents completed the WHOQOL-BREF at baseline, 6 months, and 12 months postintervention. Data were analyzed using nonparametric techniques (SPSS 15). Significant and positive HRQoL impacts were demonstrated. Future studies with larger sample are encouraged. This study was supported by the Ministry of Health Malaysia.

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
Evaluation of Methadone Treatment in Malaysia: Findings from the Malaysian Methadone Treatment Outcome Study (MyTOS)

Ali N, Aziz SA, Nordin S, Mi NC, Abdullah N, Paranthaman V, et al.

Subst Use Misuse, 2018 01 28;53(2):239-248.
PMID: 29116878 DOI: 10.1080/10826084.2017.1385630

BACKGROUND: Opioid misuse and dependence is a global issue with a huge negative impact. In Malaysia, heroin is still the main illicit drug used, and methadone maintenance treatment (MMT) has been used since 2005.
OBJECTIVE: To evaluate the effectiveness of MMT.
METHODS: This was a cross-sectional study conducted in 103 treatment centers between October and December 2014 using a set of standard questionnaires. Data were analyzed using SPSS Statistics 20.
RESULTS: There were 3254 respondents (93.6% response rate); of these 17.5% (n = 570) transferred to another treatment center, 8.6% (n = 280) died, 29.2% (n = 950) defaulted, and 7.6% (n = 247) were terminated for various reasons. Hence, 1233 (37%) respondents' baseline and follow-up data were further analyzed. Respondents had a mean age of 39.2 years old and were mainly male, Malay, Muslim, married (51.1%, n = 617), and currently employed. Few showed viral seroconversion after they started MMT (HIV: 0.5%, n = 6; Hepatitis B: 0.3%, n = 4; Hepatitis C: 2.7%, n = 29). There were significant reductions in opioid use, HIV risk-taking score (p < 0.01), social functioning (p < 0.01), crime (p < 0.01), and health (p < 0.01). However, there were significant improvements in quality of life in the physical, psychological, social, and environmental domains. Factors associated with change were being married, employed, consuming alcohol, and high criminality at baseline. Lower methadone dosage was significantly associated with improvements in the physical, psychological, and environmental domains.
Conclusion/Importance: The MMT program was found to be successful; hence, it should be expanded.

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
Psychiatric comorbidity among patients on methadone maintenance therapy and its influence on quality of life

Teoh Bing Fei J, Yee A, Habil MH

Am J Addict, 2016 Jan;25(1):49-55.
PMID: 26692463 DOI: 10.1111/ajad.12317

BACKGROUND AND OBJECTIVES: Co-occurring psychiatric disorders are among the difficulties faced by patients with opioid dependence on methadone maintenance therapy (MMT). This study aims to assess the prevalence of psychiatric comorbidity among patients on MMT, the factors predicting psychiatric comorbidity and to examine the association between psychiatric comorbidity and quality of life.
METHODS: A total of 225 male patients on MMT in a tertiary hospital in Malaysia were assessed for psychiatric comorbidity and substance use disorders using the Mini-International Neuropsychiatric Interview (MINI) and Opiate Treatment Index (OTI). Their quality of life was assessed using World Health Organization Quality of Life (WHOQOL)-BREF.
RESULTS: The prevalence of a current and lifetime non-substance use Axis I psychiatric disorder was 14.2% and 15.6% respectively, while 14.7% fulfilled the criteria for antisocial personality disorder. 80.9% had comorbid substance dependence, predominantly nicotine dependence. Factors significantly associated with a non-substance use Axis I psychiatric disorder on multivariate analysis were use of psychiatric medications, antisocial personality disorder and poorer physical health. Patients with a non-substance use Axis I psychiatric disorder had a significantly poorer quality of life in all domains namely physical health, psychological, social relationships, environment as well as combined quality of life and general health after controlling for possible confounders.
CONCLUSION: Psychiatric comorbidity among patients on MMT negatively impacts quality of life.
SCIENTIFIC SIGNIFICANCE: The detection of psychiatric disorders and provision of appropriate treatment is needed to improve the quality of life of patients on MMT.

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
Fulltext Compliance towards methadone maintenance therapy and its associated factors in Selangor primary care centers and Kuala Lumpur hospital

Sharifa Ezat WP, Noor Azimah H, Rushidi R, Raminder K, Ruhani I

Med J Malaysia, 2009 Mar;64(1):65-70.
PMID: 19852326 MyJurnal

This paper seeks to determine the client's compliance level towards Methadone Maintenance Therapy (MMT) and identify its associated factors. A cross sectional study was conducted from June to September 2007 where 288 samples were interviewed. The outcomes were divided into good compliance and partial compliance categories. Overall client's compliance level is good at 86.1%. There are significant difference between mean age of groups (t = -2.041, p = 0.04); and significant associations of job's status (chi2 = 9.54, p = 0.008); client's confident score (t = -3.12, p = 0.023), client'ssocial function score (t = -2.308, p = 0.002) and client's social function level (chi2 = 5.43, p = 0.02) with compliance toward program. With multivariate analysis, only client's age, client's confidence score and client's job status were related to compliance status. It was concluded that there is high compliance rate among client's who received the program. Younger clients, low scores on client's confident and social function, and clients with unsteady jobs are at risk not to comply with treatment.

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
The prevalence of sexual dysfunction among male patients on methadone and buprenorphine treatments: a meta-analysis study

Yee A, Loh HS, Hisham Hashim HM, Ng CG

J Sex Med, 2014 Jan;11(1):22-32.
PMID: 24344738 DOI: 10.1111/jsm.12352

INTRODUCTION: For many years, methadone has been recognized as an effective maintenance treatment for opioid dependence. However, of the many adverse events reported, sexual dysfunction is one of the most common side effects.
AIM: We conducted a meta-analysis to evaluate the prevalence of sexual dysfunction among male patients on methadone and buprenorphine treatments.
METHODS: Relevant studies published from inception until December 2012 were identified by searching PubMed, OVID, and Embase. Studies were selected using prior defined criteria. Heterogeneity, publication bias, and odds ratio were assessed thoroughly.
MAIN OUTCOME MEASURES: To examine the prevalence and odds ratio of sexual dysfunctions among the methadone and buprenorphine groups.
RESULTS: A total of 1,570 participants from 16 eligible studies were identified in this meta-analysis. The studies provided prevalence estimates for sexual dysfunction among methadone users with a meta-analytical pooled prevalence of 52% (95% confidence interval [CI], 0.39-0.65). Only four studies compared sexual dysfunction between the two groups, with a significantly higher combined odds ratio in the methadone group (OR = 4.01, 95% CI, 1.52-10.55, P = 0.0049).
CONCLUSIONS: Evidence showed that the prevalence of sexual dysfunction was higher among the users of methadone compared with buprenorphine. Patients with sexual difficulty while on methadone treatment were advised to switch to buprenorphine.

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
Risk factors of erectile dysfunction in patients receiving methadone maintenance therapy

Nik Jaafar NR, Mislan N, Abdul Aziz S, Baharudin A, Ibrahim N, Midin M, et al.

J Sex Med, 2013 Aug;10(8):2069-76.
PMID: 23445463 DOI: 10.1111/jsm.12105

INTRODUCTION: While methadone effectively treats opiate dependence, the side effect of erectile dysfunction (ED) may interfere with treatment adherence and benefits.
AIM:To determine the rate of ED and the associated factors which predict ED in male patients on methadone maintenance therapy (MMT) in a Malaysian population.
MAIN OUTCOME MEASURES: The main outcome measures were the International Index of Erectile Function-15 (IIEF-15) and the Beck Depression Inventory (BDI).
METHODS: A total of 108 participants diagnosed with heroin dependence were assessed. We used the Structured Clinical Interview for DSM-IV Axis-I Disorders (SCID-I) on subjects who received MMT, and they were assessed using the IIEF-15, the BDI, and measures of other clinical and sociodemographic variables.
RESULTS: The rate of ED among men on MMT was 68.5% (mild ED, 36.1%; mild to moderate ED, 22.2%; severe ED, 3.7%). The mean age of the participants was 43.45 years. Older age (P = 0.002), concurrent illicit heroin use (P = 0.024), and having an older partner (P = 0.039) were significantly associated with ED. Following multivariate analysis, it was found that older age was the only significant predictor of ED, with an adjusted odds ratio of 1.07 (95% CI = 1.02-1.16). Methadone dose and duration of methadone treatment were not significantly associated with ED.
CONCLUSION: ED was highly prevalent among male patients on MMT. This suggests that there is a need for routine assessment of sexual function in patients on methadone. Among the risk factors, age was the only factor that was significantly associated with ED. The current use of MMT in Malaysia in terms of dosage and duration did not pose a significant risk for ED.
KEYWORDS: Erectile Dysfunction; Methadone Therapy; Opiate Dependence
Study site: outpatient clinic for opiate substitution therapy, Hospital Kuala Lumpur (HKL), Malaysia

Matched MeSH terms: Opioid-Related Disorders/drug therapy*
Plasma Testosterone and Sexual Function in Southeast Asian Men Receiving Methadone and Buprenorphine Maintenance Treatment

Yee A, Loh HS, Danaee M, Riahi S, Ng CG, Sulaiman AH

J Sex Med, 2018 02;15(2):159-166.
PMID: 29275046 DOI: 10.1016/j.jsxm.2017.12.004

BACKGROUND: Methadone has been recognized as an effective maintenance treatment for opioid dependence. However, its use is associated with several complications, including sexual dysfunction in men.
AIM: To assess plasma testosterone and sexual function in Southeast Asian men on methadone maintenance treatment (MMT) or buprenorphine maintenance treatment (BMT).
METHODS: 76 sexually active men on MMT (mean age = 43.30 ± 10.32 years) and 31 men on BMT (mean age = 41.87 ± 9.76 years) from a Southeast Asian community were evaluated using plasma total testosterone (TT) and prolactin levels, body mass index, social demographics, substance use measures, and depression severity scale.
OUTCOMES: Prevalence and associated factors of TT level lower than the reference range in men on MMT or BMT.
RESULTS: More than 1 third of men (40.8%, n = 31) on MMT had TT levels lower than the reference range, whereas 1 fourth of men (22.6%, n = 7) on BMT did. At univariate analysis, MMT vs BMT (β = 0.298, adjusted R2 = 0.08, P = .02) and body mass index (β = -0.23, adjusted R2 = 0.12, P = .02) were associated with changes in TT after stepwise regression. There were no significant associations with age; Opiate Treatment Index Q scores for alcohol, heroin, stimulant, tobacco, or cannabis use and social functioning domain; education levels; hepatitis C status; and severity of depression. Prolactin level did not differ between the MMT and BMT groups.
CLINICAL IMPLICATIONS: The sex hormonal assay should be used regularly to check men on MMT.
STRENGTHS AND LIMITATIONS: This is the first study conducted in the Southeast Asian community. Our study was limited by the lack of a healthy group as the reference for serum levels of testosterone and prolactin.
CONCLUSIONS: The findings showed that plasma testosterone levels are lower in MMT than in BMT users. Hence, men who are receiving MMT should be screened for hypogonadism routinely in the clinical setting. Yee A, Loh HS, Danaee M, et al. Plasma Testosterone and Sexual Function in Southeast Asian Men Receiving Methadone and Buprenorphine Maintenance Treatment. J Sex Med 2018;15:159-166.

Matched MeSH terms: Opioid-Related Disorders/drug therapy

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