Table 3.

Summary of included studies examining web-based interventions using videos.

Category (Author, year, country, quality score)	Web-based video interventions
	Aims and objectives	Participants or sample	Results
Choi, 2016 [40], United States, moderate.	To determine the feasibility of using a specific video in a web-based suicide awareness program for Asian American and non-Hispanic White college students	University students: n=431; 78.0% (336/431) female	Asian Americans rated the suicide awareness video significantly lower for cultural relevance than non-Hispanic Whites. Collectivist cultural orientation was a significant predictor for cultural relevance, credibility, and appeal. Cultural orientation and race or ethnicity should be strongly considered when web-based suicide awareness programs are developed for college students.
Park, 2014 [41], United States, high.	To determine the predictors of watching a web-based suicide prevention video and whether data characteristics differed for those watching most or only part of the video	University students: n=650; 71.8% (467/650) female	When examining characteristics of individuals who watched a suicide prevention video (which included self-harm content), the video completion group included more females, undergraduates, and Asian Americans and had higher individualistic orientation and more correct manipulation check answers. The video noncompletion group skipped items in a purposeful manner, showed less interest in the video, and spent less time completing questionnaires.
Robinson, 2015 [42], Australia, moderate.	To examine the safety and acceptability of a web-based suicide prevention program and determine which components were found to be most helpful and enjoyable	Secondary school students: n=21; 81% (17/21) female	A total of 21 young people completed the intervention. Overall, the intervention did not lead to increases in suicidal ideation or distress. Participants reported enjoying the program, in particular watching the video diaries and completing the activities. Most participants said they would recommend the program to a friend.
Scherr, 2017 [43], Germany, moderate.	To examine the impact of a suicide awareness video on adherence to newspaper reporting guidelines; video intended to be used for web-based format	Journalism students: n=78; 69% (54/78) female	Awareness material exposure helped to improve responsible reporting of suicide, with the awareness video showing a stronger effect than written material alone.