Major Depressive Disorder (MDD) is substantially higher in people seeking Methadone Maintenance Therapy (MMT) as compared to the normal population. Erectile Dysfunction (ED) is one of the side effects of Methadone Maintenance Therapy (MMT) which is rarely explored as it is regarded as a sensitive topic. This study aims to determine the prevalence of MDD and its association with ED among MMT clients. A cross-sectional study was conducted involving 160 subjects who attended the Methadone outpatient clinic. The clients were given Patient Health Questionnaire-9 to screen for depressive symptoms and MINI International Neuropsychiatric Interview to diagnose MDD. ED was diagnosed using the 5-item International Index of Erectile Function. The results showed the prevalence of depression in clients on MMT was 30.6% and the prevalence of ED was 72.5%. On multivariate analyses, there were significant associations between ED with depression (P<0.05). Smoking also was found to be contributed to depression. Sociodemographic factors, comorbid medical illnesses, and illicit substance use were found to have no associations with depression. Therefore, given the prevalence of MDD and ED in MMT clients was high, routine assessment of depressive symptoms and sexual function in clients on methadone should be done to minimize their negative impact on the clients

Introduction: In recognition of the role of motivation in drug use treatment, patient motivational screening instruments are needed for strategic planning and treatment. The aims of this study were to evaluate the reliability and validity of the Malay version of the Treatment Motivation Scale, and to compare the motivational levels of patients receiving substance abuse treatment with different modalities (inpatient vs. outpatient). The motivational scale consists of three scales: problem recognition, desire for help and treatment readiness. Method: A convenience sample of 102 patients was recruited from four Cure and Care Service Centres in Malaysia. Results: Principal component analysis with varimax rotation supported two-factor solutions for each subscale: problem recognition, desire for help and treatment readiness, which accounted for 63.5%, 62.7% and 49.1% of the variances, respectively. The Cronbach’s alpha coefficients were acceptable for the overall measures (24 items: α = 0.89), the problem recognition scale (10 items; α = 0.89), desire for help (6 items; α = 0.64) and treatment readiness scale (8 items; α = 0.60). The results also indicated significant motivational differences for different modalities, with inpatients having significantly higher motivational scores in each scale compared to outpatients. Conclusion: The present study pointed towards the favourable psychometric properties of a motivation for treatment scale, which can be a useful instrument for clinical applications of drug use changes and treatment.