الفهرس 
List of ContentOnly 14 pages are availabe for public view
 |  | from | 144 |  |  |
| | | from | 144 | | |
Abstract
Substance use disorder (SUD) is defined as a problematic pattern of substance use leading to clinically significant impairment or distress. A person with a substance use disorder will have an inability to consistently abstain from substance(s); their life activities and time are focused on using substance(s), which leads to impaired functioning in social, occupational, and recreational activities. This person may experience craving and withdrawal symptoms when they attempt to abstain from substance use. Polysubstance (PSU) use is the consumption of more than one substance over a defined period, simultaneously or at different times. It is common and associated with psychiatric and medical problems, engagement in health risk behaviors, and cognitive functioning deficits that increase the chances of poor treatment adherence and outcomes. PSU has typically been based on lifetime prevalence, 1–12 month prevalence, or simultaneous substance use. Aim of study: To examine the various clinical correlates and differences in both polysubstance and monosubstance users such as the addiction severity and beliefs, socio-demographic variables, personality features, psychiatric comorbidity and exposure to stressful life events in an Egyptian sample of adults.