Int. J. Environ. Res. Public Health 2009, 6 3062 Table 3. Cont. leixfepteimrieen, cnes(%of) serious problems with sexual partner in their 41 (79.0) 30 (56.0) p < 0.001*** ddaayyss,oMf s(e%ri)ous problems with their family in the past 30 4.37 (9.29) 0.98 (2.87) p < 0.001*** n, number of participants; M, mean; SD, standard deviation Note: The Mann-Whitney Wilcoxon test was used for the statistical comparison with continuous values. The 2 test was used for the other categories. *p < 0.05, **p < 0.01, ***p < 0.001 Table 3 shows a list of the ASI-J items that inmates and patients answered differently. With regard to employment/support status, inmates had more paid work and received more money for work in the past 30 days than patients. Inmates also received more money from illegal activities than patients. Fewer inmates received financial support compared with patients. Inmates had more people who depended on them for the majority of food, shelter, etc., than patients. With regard to drug use, inmates reported significantly more days of “methamphetamine use in the past 30 days” and “multidrug use in the past 30 days” than patients. Inmates spent more money on drugs in the past 30 days than patients. No significant differences were found between the two groups in the drug-use CS items with the exception of these three items. With regard to legal status, inmates more frequently engaged in illegal activities for profit in the past 30 days than patients. Inmates were arrested more frequently for drug charges, parole violations, and assault than patients. With regard to psychiatric symptoms, inmates experienced fewer hallucinations and were prescribed less medication for psychological and emotional problems in the past 30 days than patients. With regard to medical status, alcohol drinking status, and family/social relationships, no overall significant differences in CS were found between the two groups. However, significant differences were found in some of the items. For example, inmates reported significantly more days of alcohol use and spent more money on alcohol in the past 30 days than patients. Inmates also more frequently experienced serious conflicts with their family in the past 30 days than patients. Similarly, more inmates experienced serious problems with their sexual partner in the past 30 days and during their lifetime than patients. 3.3. Substance Use Behavior Table 4 shows the number and percentage of participants who reported substance use/abuse lasting more than 1 year in their lifetime and who abused methamphetamine by injection. Table 4 also shows the average duration (standard deviation) of substance use/abuse of participants in prison and treatment settings. No significant difference was observed in experience of methamphetamine and alcohol abuse in their lifetime between inmates and patients. Inmates had more frequently experienced inhalant abuse and had less frequently experienced cannabis and methylenedioxymethamphetamine (MDMA) abuse than patients. Additionally, inmates had a significantly shorter duration of methamphetamine and MDMA abuse and a significantly longer duration of alcohol use than patients. Most inmates abused