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We characterized relationships between mobility and sexual risks on STI prevalence over time in East Africa.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Geospatial mobility and sexual risk behaviours were collected in 12 communities using a sex- and HIV-stratified random sub-sample of 2750 adults from a longitudinal cohort (2015\u20132019) of a HIV test-and-treat trial in Kenya and Uganda. Annual\n                      <jats:italic toggle=\"yes\">Chlamydia trachomatis<\/jats:italic>\n                      (CT) and\n                      <jats:italic toggle=\"yes\">Neisseria gonorrhoeae<\/jats:italic>\n                      (NG) testing was performed and relationships of prevalent STIs with mobility, sexual concurrency, and higher HIV-risk sexual partners (defined as one night stand, stranger, commercial sex worker\/client, casual partner, or inherited partner\/inheritor) were examined.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The annual prevalence of CT or NG among 2665 participants tested was 3.1% (95% CI: 2.5\u20133.9) at baseline, 3.3% (95% CI: 2.6\u20134.0) at year 1, 4.4% (95% CI: 3.0\u20135.2) at year 2, and 4.8% (95% CI: 4.0\u20135.7) at year 3. STI (CT, NG) prevalence was associated with migration in the past year, sexual partnership concurrency, being single, higher HIV-risk partners, age &gt;25, low household wealth, and the relationship between gender and work-related travel in past 6\u00a0months. The association between select STI prevalence and past 6-months travel was mediated by higher HIV-risk sexual partners, partnership concurrency, out-of-town partner, and higher HIV-risk transactional sex partners.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Geospatial mobility, sexual concurrency, and higher HIV-risk partnerships significantly influence longitudinal CT and\/or NG prevalence in East Africa.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/09564624261427053","type":"journal-article","created":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T13:47:46Z","timestamp":1773841666000},"page":"757-767","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Geospatial mobility, non-local partners, concurrent sexual partnerships, and gender influence longitudinal STI prevalence 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