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Is migrant status a bacterial sexually transmitted infection risk factor? Prevalence of bacterial sexually transmitted infections in a free-clinic population in France: a monocentric cross-sectional retrospective study

Year: 2025

Type: article

Abstract: Background Bacterial sexually transmitted infections (STIs) are a major public health concern, especially among vulnerable populations. This study aimed to assess the prevalence of bacterial STIs in a sexual health clinic population in France and determine whether migrant status is an independent risk factor. Methods We retrospectively analysed medical records from patients attending a Parisian-based STI free clinic between July 1, 2019, and December 31, 2023. The outcome for the primary analysis was the diagnosis of Chlamydia trachomatis , syphilis or Neisseria gonorrhoeae infection. Multivariable logistic regression models were used to describe the association between migrant status and bacterial STIs adjusting for age, number of sexual partners in the past year, sex work, gender and sexual orientation. Adjusted odds ratios (aOR) were estimated and p-value calculated with X 2 -test. Findings A total of 9,949 adults were included, of whom 28% were migrants, including 9% who had recently arrived in France. Prevalence of bacterial STIs in migrant participants was 6.3% for C. trachomatis (95% CI [5.4 - 7.2]), 5.4% for N. gonorrhoeae (95% CI [4.5 - 6.3]), and 6.3% for syphilis (95% CI [5.3 - 7.3]). Multivariate analysis showed that migrant status was significantly associated with bacterial STI diagnosis (adjusted OR = 1.48, 95% CI [1.25 - 1.74]). Interpretation European recommendations for the care of migrants should include systematic screening for bacterial STIs. Screening must remain independent of immigration authorities. Ensuring access to sexual health services for vulnerable populations—while upholding informed consent and medical confidentiality—is essential to addressing the global rise in STIs.

Source: International Journal of Infectious Diseases

DOI: 10.1016/j.ijid.2025.108121