Table 1: Research studies on men who have sex with men (MSM) included in this paper.

Study numberAuthors publish yearYearLocationParticipantsSample size

1Colby 2010 [18]
2010Ho Chi Minh CityMSWs*  (are MSM)300 (300)
2Nguyen et al, 2008 [14]2004Ho Chi Minh CityMSM600
3 CREATA 2012 [21]2009Hanoi MSWs (are MSM)710
Ho Chi Minh City
2011Nha Trang
4Colby 2003 [17]2001Ho Chi Minh CityMSM219
5 UNODC 2012 [31]2010Risk groups (incl. MSM)1352 (270)
6 NIHE and FHI [15]2006HanoiRisk groups (incl. MSM)(790)
Ho Chi Minh City
7 MOH and NIHE [16]2009Hanoi, HaiphongRisk groups (incl. MSM)(1596)
Ho Chi Minh City Cantho
8Colby et al. 2008 [13]2005Khanh HoaMSM295
9Vu et al. 2012 [29]2009Hanoi, Ho Chi Minh CityMSM, MSWs, transgender, (stakeholders)115 (9)
10Vu et al. 2008 [41]2004Ho Chi Minh CityMSM (key informants)90 (16)
11 Ngo et al. 2009 [22]2007Hanoi,Young men and MSMNA
2008Ho Chi Minh City

* “MSWs” stands for “male sex workers.”