In Japan, MAP smokers have different life backgrounds from injectors. Smoking MAP does not appear to be a safer route as regards losing control of MAP use and inducing psychosis than injection.
Aims: To identify profiles associated with treatment retention in Japanese patients with methamphetamine use disorder.
Methods: The study used a retrospective design based on clinical records. The subjects were 101 patients at the Kanagawa Psychiatric Center, Serigaya Hospital, who were diagnosed as having methamphetamine use disorder. They were divided in two groups, namely those who remained in treatment 3 months after the initial assessment, and those who did not. The primary analysis compared patient profiles between the two groups to detect discriminating variables, which were then submitted for secondary analysis using logistic regression to determine the most relevant predictor of retention.
Results: Primary analysis indicated that older age, having psychotic symptoms, receiving public assistance, and history of incarceration were associated with treatment retention after 3 months. Secondary analysis showed that positive history of incarceration was the most significant predictor of the outcome.
Conclusions: History of incarceration had the most significant treatment‐retention effect on Japanese patients with methamphetamine use disorder. The development and introduction of integrated programs that link methamphetamine‐dependent offenders to drug treatment is recommended in outpatient treatment for Japanese patients with methamphetamine user disorder.
Aim:The aim of this study was to identify risk factors for suicide in Japanese substance use disorder (SUD) patients, adjusting for age and sex, and to examine sex differences in suicide risk among these patients.Methods: A self-reporting questionnaire on age, sex, types of abused substances, current depression, and suicidality was administered to 1420 SUD patients who consecutively visited seven hospitals specializing in SUD treatment during the month of December 2009. Unadjusted/adjusted odds ratios of factors associated with suicidality were calculated for each sex.Results: The multivariate analysis using the total sample identified younger age, female sex, and current depression as risk factors for severe suicidality in SUD patients. The multivariate analysis by each sex demonstrated that younger age and current depression were associated with severe suicidality in male SUD patients. Only current depression was associated with severe suicidality in female patients.Conclusion: Current depression is a risk factor for suicide in SUD patients common in both Western countries and Japan, although in Japanese SUD patients both younger age and female sex were more closely associated with severe suicidality than aspects of SUD. Additionally, young male SUD patients are speculated to have psychosocial features associated with suicidality in common with female SUD patients.
A total of 103 cases of inpatient alcoholics in Japan and 67 cases in China were compared on the patient history, family history, marital status, course of dependence‐formation, alcohol‐related psychoses, etc. Between Japan, which is suffering from an already increased rate of alcoholics, and China, which is now confronted with an increasing rate of alcoholics, the following findings were observed. The period from the beginning of habitual drinking to the first drinking bout fit was found to be shorter in China, that is to say, alcohol dependence may be formed more rapidly in China. The frequency of types of withdrawal psychoses was similar in both countries. The jealousy delusion seldom appeared in Japan and yet often in China. The condition whereby family bonds are not destroyed in China was discussed as a considerable factor for the manifestation of jealousy delusion.
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