Opening the digital doorway to sexual healthcare: Recommendations from a behaviour change wheel analysis of barriers and facilitators to seeking online sexual health information and support among underserved populations.

Background: The ability to access and navigate online sexual health information and support is increasingly needed in order to engage with wider sexual healthcare. However, people from underserved populations may struggle to pass though this "digital doorway". Therefore, using a behavioural science approach, we first aimed to identify barriers and facilitators to i) seeking online sexual health information and ii) seeking online sexual health support.

Barriers to HIV testing and possible interventions to improve access to HIV healthcare among migrants, with a focus on migrant women: Results from a European survey.

Background: According to European Centre for Disease Prevention and Control (ECDC) reports, women and migrants are more likely to have delayed HIV diagnosis (CD4 <350 cells/mm). As a follow-up to a previously published systematic review revealing a range of barriers to HIV testing among migrant women, the aim of the present study was to identify barriers to HIV testing from the perspective of service providers and to formulate possible interventions to improve access to HIV healthcare among migrants in Europe, with an emphasis on migrant women.

Methods: Between November 2021 and February 2022 an online survey, consisting of 20 questions, was forwarded to 178 stakeholders and non-governmental organizations (NGOs) working with migrant populations in 33 countries from the World Health Organization (WHO) European region.

Late HIV diagnosis among migrant women living in Europe - a systematic review of barriers to HIV testing.

Objectives: HIV transmission persists in Europe, with migrants accounting for over two-fifths of new diagnoses. Over half of all women in Europe are diagnosed late - particularly migrant women. Therefore, an updated understanding of migrant women's needs is crucial to inform inclusive and relevant HIV research, services, and policies.

Accelerated partner therapy contact tracing for people with chlamydia (LUSTRUM): a crossover cluster-randomised controlled trial.

Background: Accelerated partner therapy has shown promise in improving contact tracing. We aimed to evaluate the effectiveness of accelerated partner therapy in addition to usual contact tracing compared with usual practice alone in heterosexual people with chlamydia, using a biological primary outcome measure.

Methods: We did a crossover cluster-randomised controlled trial in 17 sexual health clinics (clusters) across England and Scotland.

Understanding the barriers and facilitators to using self-sampling packs for sexually transmitted infections and blood-borne viruses: Thematic analyses for intervention optimization.

Purpose: Self-sampling packs for sexually transmitted infections (STIs) and blood-borne viruses (BBVs) are widely offered. There are ongoing problems with reach and sample return rates. The packs have arisen without formal intervention development.

Using the behaviour change wheel approach to optimize self-sampling packs for sexually transmitted infection and blood borne viruses.

Purpose: This paper describes the process of optimizing a widely offered intervention-self-sampling packs for sexually transmitted infections (STIs) and blood borne viruses (BBVs). We drew upon the behaviour change wheel (BCW) approach, incorporating the theoretical domains framework (TDF) and the behaviour change technique taxonomy (BCTTv1) to systematically specify potential intervention components that may optimize the packs.

Methods: A BCW analysis built upon prior thematic analyses of qualitative data collected through focus groups and interviews with members of the public and people recruited from sexual health clinics in Glasgow and London (n = 56).

Going beyond 'regular and casual': development of a classification of sexual partner types to enhance partner notification for STIs.

Objectives: To develop a classification of sexual partner types for use in partner notification (PN) for STIs.

Methods: A four-step process: (1) an iterative synthesis of five sources of evidence: scoping review of social and health sciences literature on partner types; analysis of relationship types in dating apps; systematic review of PN intervention content; and review of PN guidelines; qualitative interviews with public, patients and health professionals to generate an initial comprehensive classification; (2) multidisciplinary clinical expert consultation to revise the classification; (3) piloting of the revised classification in sexual health clinics during a randomised controlled trial of PN; (4) application of the Theoretical Domains Framework (TDF) to identify index patients' willingness to engage in PN for each partner type.

Results: Five main partner types emerged from the evidence synthesis and consultation: 'established partner', 'new partner', 'occasional partner', 'one-off partner' and 'sex worker'.

How can we make self-sampling packs for sexually transmitted infections and bloodborne viruses more inclusive? A qualitative study with people with mild learning disabilities and low health literacy.

Objectives: 1.5 million people in the UK have mild to moderate learning disabilities. STIs and bloodborne viruses (BBVs) are over-represented in people experiencing broader health inequalities, which include those with mild learning disabilities.

Utilizing community and voluntary sector partnerships to survey and compare the health outcomes of hard-to- reach groups to the wider community-the EURO- URHIS 2 Hard-to-Reach Project.

This article describes the Hard-to-Reach (HtR) Project that was developed to capture health and lifestyle data from groups who are HtR by postal surveys within the larger EURO-URHIS 2 project. By collaborating with partner organizations, data were collected using standard survey tools, allowing for comparison with the wider population. Following a scoping exercise to determine which groups were HtR in Greater Manchester, black and minority ethnic (BME) groups and students were selected.

A systematic review of post-migration acquisition of HIV among migrants from countries with generalised HIV epidemics living in Europe: mplications for effectively managing HIV prevention programmes and policy.

Background: Migrant populations from countries with generalised HIV epidemics make up a significant proportion of all HIV/AIDS cases in many European Union and European Economic Area (EU/EEA) countries, with heterosexual transmission the predominant mode of HIV acquisition. While most of these infections are diagnosed for the first time in Europe, acquisition is believed to have predominantly occurred in the home country. A proportion of HIV transmission is believed to be occurring post-migration, and many countries may underestimate the degree to which this is occurring.