Sexual Health

[Evolution of sexually transmitted infections cases in the city of Barcelona (2007-2024): profiles by reporting centre].

TL;DR

Sexually transmitted infections diagnoses in Barcelona show potential inequalities by sex, country of birth and socioeconomic level, which are reflected in the type of healthcare setting where diagnoses are made.

Key Findings

Community-based services accounted for the largest share of STI diagnoses in Barcelona between 2007 and 2024, followed by primary care and hospital-based care.

  • 44.3% of diagnoses were made in community-based services
  • 30.6% of diagnoses were made in primary care
  • 24.9% of diagnoses were made in hospital-based care
  • The study covered four individually notifiable STIs: syphilis, gonorrhoea, chlamydia, and lymphogranuloma venereum

Men accounted for the majority of STI cases and were predominantly diagnosed in community settings, while women were mainly diagnosed in primary care.

  • Men accounted for 78.6% of all STI cases
  • Men were predominantly diagnosed in community-based services
  • Women were mainly diagnosed in primary care settings
  • This distribution suggests a sex-based differential in healthcare access and care-seeking patterns

The probability of being diagnosed with an STI in any type of care setting decreased with increasing age compared to the 25-34-year age group.

  • The 25-34-year age group served as the reference category in adjusted Poisson regression models
  • Decreasing probability of diagnosis with increasing age was observed across all types of reporting centres
  • Robust Poisson regression was used to estimate adjusted incidence rate ratios
  • The analysis adjusted for sociodemographic variables and stratified by type of centre

Being born in Central or South America was associated with substantially higher probabilities of STI diagnosis in primary care and hospital-based care compared to other groups.

  • Being born in Central or South America was associated with a 112% higher probability of diagnosis in primary care
  • Being born in Central or South America was associated with a 144% higher probability of diagnosis in hospital care
  • These associations were estimated using adjusted incidence rate ratios from robust Poisson regression
  • Country of birth was one of the sociodemographic variables used in the adjustment

Low socioeconomic status was associated with a substantially higher probability of STI diagnosis in primary care.

  • Low socioeconomic status was associated with a 238% higher probability of diagnosis in primary care
  • This association was estimated using adjusted robust Poisson regression models
  • Socioeconomic status was included as a sociodemographic covariate in the analysis
  • The finding suggests potential socioeconomic inequalities in how and where STIs are diagnosed

The COVID-19 pandemic appears to have accentuated existing inequalities and was associated with a relative shift in STI diagnostic activity towards community-based services.

  • The study period spanned 2007 to 2024, encompassing the COVID-19 pandemic years
  • The pandemic appears to have accentuated patterns of inequality by sex, country of birth, and socioeconomic level
  • A relative shift in diagnostic activity towards community-based services was observed during and after the pandemic period
  • The analysis was based on temporal trend analysis using population-level notification data

The authors identified a need to strengthen primary care and improve coordination between healthcare settings to move toward a more equitable model of sexual health care.

  • Diagnoses show potential inequalities by sex, country of birth, and socioeconomic level reflected in care setting type
  • Strengthening primary care was identified as a key recommendation
  • Improving coordination between healthcare settings was also recommended
  • The goal stated is to move towards a more equitable model of sexual health care

What This Means

This research analyzed trends in sexually transmitted infections (STIs) — specifically syphilis, gonorrhea, chlamydia, and lymphogranuloma venereum — diagnosed in Barcelona, Spain, from 2007 to 2024. The study looked at where people were diagnosed (community health centers, primary care clinics, or hospitals) and how this varied by gender, age, country of birth, and socioeconomic status. The researchers found that community-based services handled the largest share of diagnoses (44%), while primary care and hospitals accounted for roughly 31% and 25%, respectively. The study found notable differences in who gets diagnosed where. Men, who made up nearly 79% of all cases, were more often diagnosed through community services, while women more frequently received diagnoses through primary care. People born in Central or South America were more than twice as likely to be diagnosed in primary care or hospital settings compared to other groups, and people with low socioeconomic status were more than three times as likely to be diagnosed in primary care. These patterns suggest that different population groups are accessing sexual health services through different — and potentially less targeted — pathways. The COVID-19 pandemic appeared to intensify these disparities and pushed more diagnostic activity toward community services. This research suggests that STI diagnosis in Barcelona is not equally distributed across different social groups or healthcare settings, pointing to potential inequalities in access to sexual health care. The findings highlight the importance of strengthening primary care services and improving coordination between different types of healthcare providers to ensure that all groups — regardless of gender, origin, or income — have equitable access to STI testing and diagnosis.

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Citation

Carles Pericas, D. Palma, Marina Palau, L. Aguirre-Cañas, Soledad Castell, C. Rius, et al.. (2026). [Evolution of sexually transmitted infections cases in the city of Barcelona (2007-2024): profiles by reporting centre].. Gaceta Sanitaria. https://doi.org/10.1016/j.gaceta.2026.102589