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Poster Presentations
PS02 – POSTER VIEWING SESSION – TUESDAY
Tuesday, July 16, 2019 5:45 PM – 7:00 PM
P742 Using lottery incentives to attract sexually risky chinese men who have sex with men to prevent syphilis
  1. Jason Ong1,
  2. Changchang Li2,
  3. Cheng Wang3,
  4. Weibin Cheng2,
  5. Weiming Tang4,
  6. Nie Juan4,
  7. Hongyun Fu5,
  8. M Kumi Smith6,
  9. Michael Marks1,
  10. Bin Yang3,
  11. Joseph Tucker7
  1. 1The London School of Hygiene and Tropical Medicine, Clinical Research and Development, London, UK
  2. 2Dermatology Hospital of Southern Medical University, Guangzhou, China
  3. 3Guangdong Center for STD Control and Prevention, Guangzhou, China
  4. 4UNC Project-China, Guangzhou, China
  5. 5Eastern Virginia Medical School, Norfolk, USA
  6. 6University of Minnesota Twin Cities, Epidemiology and Community Health, Minneapolis, USA
  7. 7UNC Project-China, Guangzhou, China

Abstract

Background Individuals with risk-loving attitudes may be more likely to participate in high-risk sex and gambling. We investigated whether a lottery-based financial incentive linked to syphilis testing may attract Chinese men who have sex with men (MSM).

Methods In July/August 2018, an online cross-sectional survey was conducted in China. The survey collected information on socio-demographic characteristics, risk-taking attitude, sexual behaviors and their likelihood to test for syphilis linked with a lottery-based financial incentive where men were eligible if they tested negative for syphilis. We asked about the minimum lottery prize that would attract them to participate. Risk attitude was measured with a validated risk attitude scale, which asked men about their likelihood to take risks in general: scores ranged from 0 (avoids taking risk) to 10 (fully prepared to take risks). Risk behaviours include having multiple sexual partners and condomless sex. Logistic regression analysis was used to examine the association of willingness to participate in the syphilis testing lottery with risk attitude score and behaviors.

Results 699 MSM were enrolled with a median age of 26 years (IQR:23–30). 70% self-identified as gay and 52% reported ever testing for syphilis. 64% stated they were likely/very likely to test for syphilis linked with a lottery incentive. The median amount for the lottery had an expected value of 10 RMB ($1.50 USD, IQR:5–30 RMB). Being willing to test for syphilis when a lottery was offered was associated with a higher risk attitude score (OR 1.12, 95%CI:1.06–1.18), older age (OR 1.03 per year increase, 95%CI: 1.00–1.06), reported more than one partner in the last 3 months (OR 1.71, 95%CI:1.25–2.36), and did not use condoms with last sex (OR 1.50, 95%CI:1.05–2.16).

Conclusion Findings indicate that lottery-based incentives might be a feasible approach to increase syphilis testing uptake in Chinese MSM, particularly amongst men with higher risk attitude scores and sexually risky behaviors.

Disclosure No significant relationships.

  • syphilis

https://doi.org/10.1136/sextrans-2019-sti.802

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