Table 1.

Selection criteria for inclusion of interventions in the search strategy for selection of interventions in Teenage

- Intervention studies which appeared in the international scientific literature since 1995, and conducted since 1990 are included; studies published before 1995 and/or interventions conducted before 1990 are excluded from the search

- Only studies published in the scientific literature are included; grey literature is excluded from the search

- Only studies written/published in English-language are included

- Only studies conducted in Europe are included.