Background: Previous reports on the prevalence of mental disorders in Iran indicated a high prevalence of psychotic disorders in both male and female prisoners.

Cannabis is the most widely used substance in the world. This study aimed to estimate the prevalence of cannabis lifetime use (CLU) in high school and college students of Iran and also to determine factors related to changes in prevalence. A systematic review of literature on cannabis use in Iran was conducted according to MOOSE guideline. Domestic scientific databases, PubMed/Medline, ISI Web of Knowledge, and Google Scholar, relevant reference lists, and relevant journals were searched up to April, 2014. Prevalences were calculated using the variance stabilizing double arcsine transformation and confidence intervals (CIs) estimated using the Wilson method. Heterogeneity was assessed by Cochran's Q statistic and I 2 index and causes of heterogeneity were evaluated using meta-regression model. In electronic database search, 4,000 citations were retrieved, producing a total of 33 studies. CLU was reported with a random effects pooled prevalence of 4.0% (95% CI = 3.0% to 5.0%). In subgroups of high school and college students, prevalences were 5.0% (95% CI = 3.0% to -7.0%) and 2.0% (95% CI = 2.0% to -3.0%), respectively. Meta-regression model indicated that prevalence is higher in college students (β = 0.089, p < .001), male gender (β = 0.017, p < .001), and is lower in studies with sampling versus census studies (β = −0.096, p < .001). This study reported that prevalence of CLU in Iranian students are lower than industrialized countries. In addition, gender, level of education, and methods of sampling are highly associated with changes in the prevalence of CLU across provinces.

Background: Experiencing stress can notoriously affect people's mental and physical health. A major source of stress can be the workplace environment. According to the numerous studies, job stress among nurses is relatively higher than that of the other jobs. Objectives: The aim of this study was examination of the relation between workplace environment and stress among operating room personnel in the training hospitals of Ilam University of Medical Science (IUMS). Materials and Methods: This cross-sectional study was performed on all personnel of operating rooms (operating room technicians, anesthesia technicians and nurses) in training hospitals of IUMS. Fifty subjects were selected by sequential sampling. To collect data, demographic data and job stress questionnaires (Cooper) were used. Data were analyzed by descriptive and inferential statistics tests such as Chi-square, Pearson correlation coefficient, ANOVA and T-test. Results: Higher levels of stress were due to the fear of being infected by HIV and hepatitis patients with mean of 3.2 and 58%; and lack of weekends with mean of 3 and 44%. The lowest levels of stress were related to inadequate skills with mean of 2.18 and 32%, and environment light with mean of 2.14 and 34.7%. Stress was significantly related to job status, conflict of doctors and nurses as well as spouses' attitude about work (P < 0.05). But there was no significant relation between stress and work shift, age, being experienced, type of hospital and marital status. Conclusions: According to the pivotal role of environmental and mental factors in the emergence of stress among operating room personnel, several considerations such as increasing the level of knowledge regarding infections, providing adequate resting time and improvement of the communications should be given among operating room personnel.