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Sex Transm Dis. 2013 Jul;40(7):546-51. doi: 10.1097/OLQ.0b013e31829529eb.

Sexually transmitted infection prevalence in a population seeking no-cost contraception.

Author information

1
Division of Clinical Research, Department of Obstetrics and Gynecology, Washington University School of Medicine, St Louis, MO 63110, USA.

Abstract

BACKGROUND:

We used universal screening to determine the prevalence rates of Neisseria gonorrhoeae (GC), Chlamydia trachomatis (CT), and Trichomonas vaginalis (TV) in 9256 women enrolling into a contraceptive study.

METHODS:

We offered screening using nucleic acid amplification or culture to all participants enrolling into the Contraceptive CHOICE Project. Demographic characteristics were collected through staff-administered questionnaires. Univariate and multivariable analyses were performed to assess the risk of sexually transmitted infection at baseline and to compare risk profiles of CT and TV.

RESULTS:

Results were available for 8347 consenting women with satisfactory results; 656 (7.9%) were tested positive for 1 or more infections. Approximately one third of participants were older than 26 years, and half were identified as African American. There were 35 cases of GC for a prevalence of 0.4% (95% confidence interval [CI], 0.3-0.6), 260 cases of CT for a prevalence of 3.1% (95% CI, 2.8-3.5), and 410 cases of TV for a prevalence of 4.9% (95% CI, 4.4-5.4). Black women were more likely to be tested positive (odds ratio, 3.95; 95% CI, 3.08-5.06) compared with white women and accounted for 81.3% of cases. T. vaginalis was more prevalent in black women (8.9%) compared with white women (0.9%). Older age was a risk factor for TV, whereas younger age was associated with CT. Of the 656 positive cases, 106 (16%) were diagnosed in women older than 25 years, falling outside traditional screening guidelines.

CONCLUSION:

We found GC, CT, and TV to be more prevalent than current national statistics, with TV being the most prevalent. Current screening recommendations would have missed 16% of infected women.

PMID:
23965768
PMCID:
PMC3752093
DOI:
10.1097/OLQ.0b013e31829529eb
[Indexed for MEDLINE]
Free PMC Article
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