The survey charted substance use related cases in social and health services on the second Tuesday of October in 2003. Professionals in social and health services recorded information on every client or patient who used the services on that day while intoxicated or because of some harm, such as an injury, relating to substance use, or were assessed by an employee to be a substance abuser. First, the substances the client had used (e.g. alcohol, cannabis, cocaine) as well as whether they had injected any drugs were charted. The occurrence of threatening or violent behaviour by the client in the social welfare or health care facility was examined, and mental health problems unrelated to substance use as well as gambling problems were surveyed. Next, the questionnaire contained some questions directed only at either outpatient care clients (questions 15-21) or inpatient care clients (questions 22-23). The questions aimed at outpatient care clients focused on, for example, whether they had made an appointment beforehand, what services were provided to them (e.g. advice, clinical procedure, therapeutic discussion) and the time used on the services. The questions aimed at inpatient care (overnight care) clients examined the length of the client's continuous treatment at the time of data collection (e.g. 1-3 days, over a month, 6-12 months) and the reason why the services required by the client were not provided as outpatient care (e.g. seriousness of injury, mental illness, preventing domestic violence). Background variables included the region where the social welfare or health care facility was located (NUTS3) and type of the facility as well as the client's gender, region of residence (NUTS3), marital status, age group, economic activity and occupational status, socio-economic status and housing tenure.

2020