Table 1.
Prevalence of Urinary Trichomonas vaginalis Infection in the Civilian, Noninstitutionalized US Population Aged 18–59 Years, by Sociodemographic and Behavioral Characteristics
| Characteristic | No. | TV Prevalence, % (95% CI) |
Crude PR (95% CI) |
Adjusted PR (95% CI)a |
|---|---|---|---|---|
| Sex | ||||
| Male | 1942 | 0.5 (.2–1.0)b | Ref. | Ref. |
| Female | 2115 | 1.8 (1.1–3.1) | 3.8 (2.2–6.5) | 6.1 (3.3–11.3) |
| Age group, y | ||||
| 18–24 | 811 | 0.7 (.4–1.4)b | Ref. | Ref. |
| 25–39 | 1363 | 1.4 (.7–2.7)b | 2.0 (1.0–3.8) | 3.0 (1.2–7.1) |
| 40–59 | 1883 | 1.2 (.6–2.3)b | 1.7 (.7–4.3) | 3.5 (1.3–9.4) |
| Race/ethnicity | ||||
| Non-Hispanic black | 822 | 6.8 (4.0–11.2) | 16.8 (7.8–36.3) | 7.9 (3.9–16.1) |
| Other races/ethnicitiesc | 3235 | 0.4 (.2–.7) | Ref. | Ref. |
| Educational attainment | ||||
| High school or more | 3148 | 0.8 (.5–1.3) | Ref. | Ref. |
| Less than high school | 831 | 2.9 (1.5–5.6)b | 3.4 (2.0–5.9) | 2.0 (1.0–4.1) |
| Poverty status | ||||
| At or above poverty level (PID ≥1) | 2784 | 0.6 (.4–.9) | Ref. | Ref. |
| Below poverty level (PID <1) | 964 | 3.9 (2.4–6.4) | 6.8 (4.2–11.2) | 4.0 (2.1–7.7) |
| Marital status | ||||
| Married/living with partner | 2246 | 0.6 (.3–1.1)b | Ref. | … |
| Widowed/divorced/separated | 553 | 2.0 (1.1–3.9) | 3.5 (1.5–8.3) | … |
| Never married | 930 | 2.4 (1.3–4.3) | 4.1 (2.6–6.5) | … |
| Born in the United States | ||||
| No | 1157 | 0.4 (.2–1.1)d | 0.3 (.1–1.0) | … |
| Yes | 2898 | 1.3 (.8–2.3) | Ref. | … |
| Lifetime No. of sex partners | ||||
| 0–5 | 1916 | 0.8 (.4–1.8)d | Ref. | … |
| >5 | 1709 | 1.3 (.8–2.1) | 1.6 (.8–3.3) | … |
| No. of sex partners in the past 12 mo | ||||
| 0–1 | 2951 | 0.7 (.4–1.3) | Ref. | Ref. |
| ≥2 | 685 | 2.8 (1.7–4.7) | 4.1 (2.5–6.8) | 3.6 (2.0–6.6) |
Prevalence ratios of TV infection were estimated from Poisson regression models. P values were determined by the design-adjusted Wald F test. Estimates in bold had a P value <.05.
Abbreviations: CI, confidence interval; PID, poverty index ratio; PR, prevalence ratio; TV, Trichomonas vaginalis.
aMultivariable model included sex, age group, race/ethnicity, educational attainment, poverty status, and the number of sexual partners in the past 12 months.
bRelative standard error, ≥30 and <35%.
cIncludes Hispanics, non-Hispanic whites, non-Hispanic Asians, and persons of other non-Hispanic race (including multiracial persons).
dRelative standard error, ≥35 and <45%.