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Trichomoniasis
Epidemiology
Trichomoniasis, caused by Trichomonas vaginalis, is the one of the most common treatable STDs in American women. It is estimated that over seven million cases occur annually in the United States. In women, infection with T. vaginalis has been suggested to be associated with adverse pregnancy outcomes, including premature rupture of membranes and pre-term labor, pelvic inflammatory disease, and increased risk for HIV infection.
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Estimated Annual Incidence of Selected STDs in the U.S.
, 2000 |
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Trichomoniasis
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7.4 million
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Human Papillomavirus (HPV)
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6.2 million
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Chlamydia
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2.8 million
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Herpes Simplex Virus (HSV) Type 2
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1.6 million
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Gonorrhea
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718,000
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Syphilis
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37,000
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Trichomoniasis prevalence rates
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General female population
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approximately 2%-3%
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Female prison inmates and commercial sex workers
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50%-60%
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Females with vaginal complaints
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18%-50%
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(Click on image for larger view)
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Risk Factors
Risk factors associated with trichomoniasis include:
- Multiple sex partners
- Lack of condom use
- Low socioeconomic status
Some other studies have found higher prevalence among
African-Americans, multiparous women, women married at an early age, and during pregnancy.
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