The EMIS questionnaire was available online between June 4 and August 31, 2010.
It was promoted online and offline through media for gay, bisexual, and other men who have sex with men (MSM). Following the slogan "Be part of something huge!", more than 180,000 MSM living in 38 countries across Europe, and more than 160,000 MSM living in the 27 EU member states completed the questionnaire.
EMIS is thus the largest international study ever conducted on homosexually active men. This overwhelming response to a 20-minute survey demonstrates both a highly acceptable instrument and high community engagement. Neither would have been possible without the participation and support of local, national, and international LGBT organizations, as well as of pan-European gay-organised social online networks like GayRomeo, Manhunt, Qruiser, Qguys, or Gaydar.
The following map shows the number of resondents per 10,000 inhabitants per country.