The key findings on illicit drug use from the SCJS 2010/11 are:
Just under one in four (23.7%) adults reported taking one or more illicit drug at some point in their lives even if it was a long time ago.
One in fifteen (6.6%) adults reported using one or more illicit drug in the last year, i.e. the 12 months prior to the survey interview.
One in twenty eight (3.5%) adults reported using one or more illicit drug in the last month, i.e. the month prior to survey interview.
Cannabis was by far the drug most commonly reported in any of the three time periods asked about.
Self-reported drug use among adults aged 16 or over in Scotland has decreased between 2008/09 and 2010/11. 6.6% of adults reported using drugs in the last year in 2010/11 compared with 7.2% in 2009/10 and 7.6% in 2008/09. Similarly 3.5% of adults reported using drugs in the last month in 2010/11 compared with 4.2% of adults in 2009/10 and 4.4% of adults in 2008/09. These decreases are statistically significant.