The repeated surveys of the Epidemiological Survey are not designed to be a fixed instrument, simply repeating the same questions. The questionnaire contains, in addition to a core module which stays the same, elements which change in order
to meet the objectives of continuous monitoring and to enable flexible adjustment depending on needs. Reference is made to current research questions through the
use of changing key topics.
The focus is on use behaviour and disorders in connection with the use of illegal substances, alcohol, tobacco and medicines. In addition, sociodemographic data
and information on the state of physical and mental health is collected. Over time,
the questionnaire of the Epidemiological Survey of Substance Abuse has been
revised several times, e. g.: