摘要：Background: Drug addiction is known as one of the health, medical and social problems of the present century. Beyond the harmful physical and mental consequences for addicts, drug abuse can cause serious social problems. The aim of this study was to evaluate drug and alcohol abuse in individuals aged 15 yr and over in Iran in 2015. Methods: This descriptive cross-sectional study was done on individuals aged 15 yr and older who lived in urban and rural areas of Iran. Overall, 36,600 individuals were selected by systematic and cluster random sampling. The postal code was used to access the samples in 31 provinces of Iran. In each province 1200 individuals (50% men, 50% women) were evaluated. The used instrument was the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST), and data were analyzed using SPSS software. Results: The results showed 4.6% of individuals used Opium and its derivatives, 0.4% used Cannabis, 0.4% used Amphetamine stimulants, 6.1% used Sedative drugs, and 2.6% used Alcoholic beverages on a regular basis. Within the last 12 months, 3.9% of individuals used Opium and its derivatives, 0.4% used Cannabis, 0.3% used Amphetamine stimulants, 5.8% used Sedative drugs, and 1.9% used Alcoholic beverages. With the exception of Sedatives drugs men used more drugs than women and residents of rural areas used more opium and its derivatives than other groups of drugs. Based on the provincial distribution, Kerman and Qom used the highest and lowest prevalence percentage of Opium and its derivatives respectively. Conclusion: Overall, 2340000 individuals were addicts used Opium and its derivatives in 2015, therefore, medical and health officials should take all necessary measures to deal with these serious social problems.
