Table 2

Combined population and user-group survey parameters including study population, study dates and sample size

Target populationSurvey yearType of surveySample size (n)Publication
15–20 years, Oslo*2006, 2007 and 2008Postal5104Vedøy and Skretting, 2009
21–30 years, Oslo†2006 and 2010Postal3468Lund et al, 2007
31–64 years, Oslo‡2004 and 2009Questionnaire completed in private899Nordlund, 2010
Prison inmates, Norway (national, applied to Oslo)§2002Questionnaire completed in private1093Odegard, 2008
Injecting drug users, Oslo‡2000–2004Face to face3829Bretteville-Jensen and Amundsen, 2009
Marginalised Users, Arendal‡2010Face to face45Unpublished pilot

  • Response rates:

  • *35%.

  • †40–50%.

  • ‡Not recorded or applicable.

  • §41%.