Table 2.

Summary of completed observational studies that used crowdsourcing to promote HIV/sexual health services.

Field	Year	Program name	Role of crowd	HIC or LMIC*	Outputs
Policy	2011	CrowdOutAIDS	Contribute policy suggestions	LMIC	Suggested three major priorities and six strategic actions to engage youth in HIV-related policy
Research	1995	Hits for Hope	Write a song	LMIC	Adolescents reported safer sexual practices after the mass media campaign
	2011§	HSV perceptions	Create a video	HIC	The solicited videos discussed the motivation of HSV disclosure, the value of disclosure, and the strategies to reduce stigma, which including
	2013	Testing saves lives	Create a video	LMIC	One-minute videos to promote HIV testing among MSM in China
	2015-2016	2BeatHIV	Create images or videos	HIC	Increased community engagement for HIV cure research
Program	1997-2005	Scenarios from Africa	Write a story	LMIC	Stories were selected and transformed into short fiction films in 25 languages and were further used as an educational resource at the community level in sub-Sahara African countries
	1998-2014	GBS vaccine and patient education	Contribute comments/suggestions	HIC	The crowdsourced platform increased parental knowledge that GBS can be sexually transmitted
	2018	Ready PrEP Go	Create images and videos	LMIC	Around three-quarters of the MSM from the community reported that the finalists are designed for them and can grab their attention.

^*Note: High-income countries or Low- and middle-income countries, HSV= herpes simplex virus, GBS = group B streptococcal

^§two included studies were from the same crowdsourcing contest.