Prevalence of Curable Sexually Transmitted Infections in a Population-Representative Sample of Young Adults in a High HIV Incidence Area in South Africa
Recent population-representative estimates of sexually transmitted infection (STI) prevalence in high HIV burden areas in southern Africa are limited. We estimated the prevalence and associated factors of 3 STIs among adolescents and young adults (AYA) in rural South Africa. Between March 2020 and M...
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Published in | Sexually transmitted diseases Vol. 50; no. 12; p. 796 |
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Main Authors | , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
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United States
01.12.2023
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Abstract | Recent population-representative estimates of sexually transmitted infection (STI) prevalence in high HIV burden areas in southern Africa are limited. We estimated the prevalence and associated factors of 3 STIs among adolescents and young adults (AYA) in rural South Africa.
Between March 2020 and May 2021, a population-representative sample of AYA aged 16 to 29 years were randomly selected from a Health and Demographic Surveillance Site in rural KwaZulu-Natal, South Africa, for a 2 × 2 factorial randomized controlled trial. Participants in 2 intervention arms were offered baseline testing for gonorrhea, chlamydia, and trichomoniasis using GeneXpert. Prevalence estimates were weighted for participation bias, and logistic regression models were used to assess factors associated with STIs.
Of 2323 eligible AYA, 1743 (75%) enrolled in the trial. Among 863 eligible for STI testing, 814 (94%) provided specimens (median age of 21.8 years, 52% female, and 71% residing in rural areas). Population-weighted prevalence estimates were 5.0% (95% confidence interval [CI], 4.2%-5.8%) for gonorrhea, 17.9% (16.5%-19.3%) for chlamydia, 5.4% (4.6%-6.3%) for trichomoniasis, and 23.7% (22.2%-25.3%) for any STI. In multivariable models, female sex (adjusted odds ratio [aOR], 2.24; 95% CI, 1.48-3.09) and urban/periurban (vs. rural) residence (aOR, 1.48; 95% CI, 1.02-2.15) were associated with STIs; recent migration was associated with lower odds of STI (aOR, 0.37; 95% CI, 0.15-0.89). Among those with an STI, 53 (31.0%) were treated within 7 days; median time to treatment was 11 days (interquartile range, 6-77 days).
We identified a high prevalence of curable STIs among AYA in rural South Africa. Improved access to STI testing to enable etiologic diagnosis and rapid treatment is needed. |
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AbstractList | Recent population-representative estimates of sexually transmitted infection (STI) prevalence in high HIV burden areas in southern Africa are limited. We estimated the prevalence and associated factors of 3 STIs among adolescents and young adults (AYA) in rural South Africa.
Between March 2020 and May 2021, a population-representative sample of AYA aged 16 to 29 years were randomly selected from a Health and Demographic Surveillance Site in rural KwaZulu-Natal, South Africa, for a 2 × 2 factorial randomized controlled trial. Participants in 2 intervention arms were offered baseline testing for gonorrhea, chlamydia, and trichomoniasis using GeneXpert. Prevalence estimates were weighted for participation bias, and logistic regression models were used to assess factors associated with STIs.
Of 2323 eligible AYA, 1743 (75%) enrolled in the trial. Among 863 eligible for STI testing, 814 (94%) provided specimens (median age of 21.8 years, 52% female, and 71% residing in rural areas). Population-weighted prevalence estimates were 5.0% (95% confidence interval [CI], 4.2%-5.8%) for gonorrhea, 17.9% (16.5%-19.3%) for chlamydia, 5.4% (4.6%-6.3%) for trichomoniasis, and 23.7% (22.2%-25.3%) for any STI. In multivariable models, female sex (adjusted odds ratio [aOR], 2.24; 95% CI, 1.48-3.09) and urban/periurban (vs. rural) residence (aOR, 1.48; 95% CI, 1.02-2.15) were associated with STIs; recent migration was associated with lower odds of STI (aOR, 0.37; 95% CI, 0.15-0.89). Among those with an STI, 53 (31.0%) were treated within 7 days; median time to treatment was 11 days (interquartile range, 6-77 days).
We identified a high prevalence of curable STIs among AYA in rural South Africa. Improved access to STI testing to enable etiologic diagnosis and rapid treatment is needed. |
Author | Copas, Andrew Chimbindi, Natsayi Bassett, Ingrid V Chidumwa, Glory Shahmanesh, Maryam Seeley, Janet Behuhuma, Ngundu Jarolimova, Jana Okesola, Nonhlanhla Harling, Guy Zuma, Thembelihle Baisley, Kathy Dreyer, Jaco Khoza, Thandeka Smit, Theresa McGrath, Nuala Herbst, Carina Sherr, Lorraine |
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SubjectTerms | Adolescent Adult Female Gonorrhea - epidemiology HIV Infections - epidemiology Humans Incidence Male Prevalence Sexually Transmitted Diseases - epidemiology South Africa - epidemiology Trichomonas Infections - epidemiology Young Adult |
Title | Prevalence of Curable Sexually Transmitted Infections in a Population-Representative Sample of Young Adults in a High HIV Incidence Area in South Africa |
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