Mode
Text Size
Log in / Sign up

International migrants show higher syphilis prevalence ratios compared to non-migrants in global meta-analysisMigrants face higher rates of syphilis than non-migrants

AI-generated summary of the cited source, checked by automated accuracy review. How we work

Key Takeaway
Note that migrants may face a higher risk of syphilis compared to non-migrants, requiring targeted STI prevention.

This meta-analysis evaluates the prevalence of Chlamydia, Gonorrhea, and Syphilis among international migrants compared to non-migrants across 31 countries. The analysis included 1,384,443 tests on migrants and 1,414,096 tests on non-migrants to determine prevalence and prevalence ratios (PR).

Key findings indicate a Chlamydia prevalence of 53.55 per 1000 (95% CI: 30.02-82.97) and a Gonorrhea prevalence of 20.77 per 1000 (95% CI: 3.33-49.84). While the prevalence ratio for probable active and seropositive syphilis was higher in migrants compared to non-migrants, the prevalence ratio for gonorrhea was not higher in migrants compared to non-migrants. The prevalence of probable active syphilis was 17.36 per 1000 (95% CI: 9.50-27.34).

The authors note several limitations, including heterogeneous studies, limited precision of estimates, and a lack of disaggregated demographic data. These factors may impact the certainty of the findings. Clinically, the results suggest that migrants may face an elevated risk of STIs in host countries, suggesting a need for targeted prevention and control strategies for this population.

How this fits prior evidence

This meta-analysis addresses a gap in understanding the specific risk profiles of migrant populations regarding STIs. It confirms that syphilis prevalence ratios are higher in migrants compared to non-migrants, which may necessitate targeted screening. While the study does not directly relate to the reported 84% reduction in stillbirth odds from maternal syphilis treatment or the 32.5% TORCH seroprevalence in Malaysia, it highlights a specific demographic risk for syphilis that may impact local public health planning.

Moving to a new country brings many challenges, and health risks can be one of the most overlooked. A large study looking at data from 31 countries found that international migrants often face a higher risk of certain infections compared to people who do not migrate. Specifically, the data showed a higher prevalence ratio for syphilis among migrants.

The study looked at millions of tests to compare infection rates. While the data showed that syphilis was more common among migrants, it did not find a significant difference in gonorrhea rates between the two groups. Chlamydia and gonorrhea were also tracked, but the focus remained on the clear difference in syphilis.

Because the data comes from many different sources, the findings have some limitations. The researchers noted that the data was not always precise and lacked specific details about the ages or backgrounds of the people tested. However, the results still suggest that migrant populations may need more focused attention in public health programs to prevent and control these infections.

What this means for you:
Migrants show higher rates of syphilis than non-migrants, suggesting a need for better targeted health support.

Common questions

What did the study find about syphilis in migrants?

The study found a higher prevalence ratio for probable active and seropositive syphilis in migrants compared to non-migrants. This means that migrants were more likely to test positive for syphilis than the non-migrant group in the study.

Were there differences in gonorrhea rates?

The study did not find a higher prevalence ratio for gonorrhea in migrants compared to non-migrants. While both groups were tested, the results did not show a significant difference in gonorrhea rates between the two groups.

How much data was used to reach these conclusions?

The analysis included a large amount of data, including 1,384,443 tests on migrants and 1,414,096 tests on non-migrants across 31 different countries. These numbers provide a broad look at infection rates globally.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
OBJECTIVES: International migrants are disproportionately affected by HIV and blood-borne viruses compared with non-migrants in high-income countries, but data on prevalence and risk of other sexually transmitted infections (STIs) are scarce. We aimed to synthesize evidence on STI prevalence among migrants and summarize risk compared with non-migrants. METHODS: We conducted a systematic review and meta-analysis of peer-reviewed literature using MEDLINE, Embase, and Global Health from January 1, 2014 to June 9, 2025 (PROSPERO: CRD42024560384) and assessed the risk of bias using the Newcastle-Ottawa scale. We used a random-effects meta-analysis to calculate pooled prevalence and prevalence ratio (PR) of STIs, among migrants compared with non-migrants overall and by infection and specific population sub-groups. RESULTS: We included 85 studies from 31 countries, providing data on 1,384,443 tests on migrants and 1,414,096 on non-migrants. We found high pooled prevalence of chlamydia (53.55 per 1000, 95% confidence interval [CI]: 30.02-82.97), gonorrhea (20.77 per 1000, 95% CI: 3.33-49.84), and probable active syphilis (17.36 per 1000, 95% CI: 9.50-27.34). Compared with non-migrants, migrants had a higher PR for probable active and seropositive syphilis but not gonorrhea. CONCLUSION: Migrants may face an elevated risk of STIs compared with non-migrants in host countries. The studies were heterogeneous, limiting the precision of estimates, and many lacked disaggregated demographic data. Our findings call for greater consideration of migrants in STI prevention and control alongside further research.
Free Newsletter

Clinical research that matters. Delivered to your inbox.

Join thousands of clinicians and researchers. No spam, unsubscribe anytime.