biostudies-literatureUnknown21(1)Mohammed H<h4>Background</h4>There has been an increasing trend in bacterial sexually transmitted infections (STIs) in England since the early 2000s. Since 2008, surveillance of STIs in England has been conducted using the Genitourinary Medicine Clinic Activity Dataset (hereafter referred to as 'GUMCAD'), a depersonalised dataset of all attendances at all publicly-commissioned sexual health services (SHS). The aim of is this article is to describe and evaluate the piloting and rollout of an enhanced specification of GUMCAD at SHS in England.<h4>Methods</h4>GUMCAD was enhanced in 2019 to allow SHS to report the gender identity (whether cisgender, transgender, gender diverse) of service users, and selected behavioural information collected during routine sexual history-taking such as the number of recPloS onee0341128https://www.ebi.ac.uk/biostudies/studies/S-EPMC12829792biostudies-literatureEnhancing surveillance of sexually transmitted infections in England with gender identity and behavioural data: The GUMCAD STI Surveillance System.PMC12829792Estcourt CRam TNardone ADuffell SMigchelsen SJCassell JAMohammed HSinka KWere JShahmanesh MSullivan AMoncrieff MWayal SPatel SHughes GHardie JHarb AKPhillips DfalseEnhancing surveillance of sexually transmitted infections in England with gender identity and behavioural data: The GUMCAD STI Surveillance System.<h4>Background</h4>There has been an increasing trend in bacterial sexually transmitted infections (STIs) in England since the early 2000s. Since 2008, surveillance of STIs in England has been conducted using the Genitourinary Medicine Clinic Activity Dataset (hereafter referred to as 'GUMCAD'), a depersonalised dataset of all attendances at all publicly-commissioned sexual health services (SHS). The aim of is this article is to describe and evaluate the piloting and rollout of an enhanced specification of GUMCAD at SHS in England.<h4>Methods</h4>GUMCAD was enhanced in 2019 to allow SHS to report the gender identity (whether cisgender, transgender, gender diverse) of service users, and selected behavioural information collected during routine sexual history-taking such as the number of rec2026-01-01T00:00:00Z20262026-06-06T20:15:06.832Z2026-06-04T03:14:10.254ZS-EPMC128297924157604010.1371/journal.pone.0341128