Sigma Research
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Sigma Research is a research group specialising in the social, behavioural and policy aspects of HIV and sexual health. It is part of the Faculty of Public Health and Policy at the London School of Hygiene & Tropical Medicine.

Views on HIV criminalisation

Views on HIV criminalisation

New article from Sigma staff on how the perceptions about criminal HIV prosecutions of people working in clinical and community-based services may affect the provision of HIV services.


Chemsex among gay men

Chemsex among gay men

Click here for all outputs from our qualitative study on chemsex in South London, including two podcasts.

HPE monitoring of Local Delivery

HPE monitoring of Local Delivery

Summary of monitoring data from Local Delivery Partners working as part of HIV Prevention England during 2015-16.

African Health & Sex Survey

African Health & Sex Survey

Available now in print or PDF, our final report from the African Health & Sex Survey of 1,000 African people in England.

London HIV Patient Survey

London HIV Patient Survey

Available now our report on the experiences of people with HIV using NHS HIV out-patients services across London.


Homophobia and health among MSM across Europe

A new open access paper using the pan-European EMIS data shows that country-level stigma may have limited HIV transmission among MSM, but by restricting MSM public visibility, it also reduces their ability to access HIV-prevention services. The findings suggest that MSM in European countries with high levels of homophobia remain vulnerable to HIV infection. Although they have less opportunity to identify as gay or bisexual and contact other MSM, this might change with app-driven contact technologies.


Partner projects

Making it Count
KWP in practice
HAUS Study of HIV self-sampling