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Sigma Research

Sigma Research is a social 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.

Evaluation of NHTW 2014Evaluation of NHTW 2014
Find here our short survey about provider responses to National HIV Testing Week 2014, undertaken on behalf of HIV Prevention England.

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African Health & Sex SurveyAfrican Health & Sex Survey
We have just launched the final report of our African Health & Sex Survey which recruited over 1,000 African people living in England.

Learn more about the survey

Gay Men's Sex Survey 2014Gay Men's Sex Survey 2014
The Gay Men's Sex Survey has just closed with more than 16,000 men having taken part. The final report will be available in February 2015.

Learn more about the survey

London HIV Patient SurveyLondon HIV Patient Survey
Available now in print or PDF, our report on the experiences of people with diagnosed HIV using NHS HIV out-patients services across London.

More about the project

Chemsex in south LondonChemsex in south London
Our Chemsex in South London final report and executive summary are now available for download.

Access the reports

Caribbean Men's Internet SurveyCaribbean Men's Internet Survey
The first outputs from the Caribbean Men's Internet Survey (CARIMIS) have been launched including a final report and a variety of videos.

Learn more about CARIMIS