Design

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Design Evaluation of an Online HIV/STD
Prevention Video for Gay Men

• Mary Ann Chiasson
• November 14, 2007

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Rationale

• HIV in men who have sex with men (MSM) is
  increasing.
• Only 2 of 18 recent interventions meeting best
  evidence criteria targeted MSM.
• Most effective interventions are complex and time
  consuming.
• About 40 of MSM meet partners online.

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Methods Online Video Intervention

• Created 8-minute dramatic video to promote
  critical thinking about sex, HIV disclosure and
  risky sex based on social learning theory.
• Video examines complex beliefs and attitudes
  underlying behaviors from multiple perspectives.

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Methods -Online Evaluation

• Recruit through online banner ad posted on
  www.manhunt.net (October 2005)
• Participation in evaluation included 6 steps
• consent
• baseline behavioral survey
• watching video
• brief survey about video
• providing email address
• behavioral survey 3 months later
• No incentives provided

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Recruitment

• 13,586 clicks
• 12 days
• 2x the proposed sample (500 providing e-mail)

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Findings Immediately after

• watching video

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Viewer Response to Video
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Other responses

• 50 had been in a situation like that in the
  video
• 87 wanted to know what happened next to the
  characters
• 7 exited to hivtest.org

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How likely are you to disclose your HIV status?
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Participants in Evaluation
46 Participation rate
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Comparison of participants who DID and DID NOT
complete follow-up survey

• Similar in terms of
• sexual identity
• age
• race
• income
• drug use before sex
• frequency of anal intercourse
• But some significant differences

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Participants non-participants were similar in.
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BUT were significantly different in
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Behavior change comparing 3 months before
after watching the video
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Summary

• After watching the video
• Men were significantly more likely to
• disclose HIV status (3.4X)
• to have an HIV test (1.5X)
• Men were significantly 50 less likely to
• Have a casual sex partner
• Report UAI

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Collaborators

• Professor Francine Shuchat Shaw
• Steinhardt-NYU
• Todd Ahlberg
• Director of Video
• Mike Humberstone
• Datalink MHRA
• Sabina Hirshfield
• MHRA
• Diana Hartel
• Einstein College of Medicine

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In the last 3 months, did you ask tell HIV
status?
T1
T2
McNemars OR (Always/Usually, Sometimes/Rarely/Nev
er) 3.4, p
At last sex, did you tell HIV status?
T1
T2
McNemars OR (Always/Usually, Sometimes/Rarely/Nev
er) 1, p
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Was your partner at last sex a casual partner?
T1
T2
McNemars OR (Always/Usually, Sometimes/Rarely/Nev
er) 0.53, p
Did you have UAI at last sex?
T1
T2
McNemars OR (Always/Usually, Sometimes/Rarely/Nev
er) 0.55, p
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HIV Testing Behavior 3 Months After the Video
McNemars OR 1.45, pHIV individuals