Table 2

Bivariate analysis of Trichomonas vaginalis infection status on risk factors for infection in men who participated in the internet-based screening program (N=919).

Risk factorCharacteristicNT vaginalis prevalence (%)
Overall 91955 (6.0)
Age (years)15–191012 (2.0)
20–2433222 (6.6)
25–291868 (4.3)
30–3918715 (8.0)
40–49786 (7.7)
≥50352 (5.7)
Race*White42615 (3.5)
Black40337 (9.2)
Asian170 (0.0)
Other703 (4.3)
Missing30 (0.0)
Ethnicity*Hispanic690 (0.0)
Non-Hispanic81149 (6.0)
Missing1056 (15.4)
Calendar year*2006–20071433 (2.1)
200821627 (12.5)
200936921 (5.7)
20101543 (2.0)
2011371 (2.7)
StateWest Virginia780 (0.0)
Maryland39224 (6.1)
Baltimore19012 (6.3)
District of Columbia321 (3.1)
Illinois688 (11.8)
Colorado1105 (4.6)
Other states20 (0.0)
Missing475 (10.6)
Marital statusSingle70645 (6.4)
Married723 (4.2)
Separated221 (4.6)
Divorced471 (2.1)
Missing725 (6.9)
Income<$1000011312 (10.6)
$10000-$49999‡45928 (6.1)
$50000-$99999‡1506 (4.0)
>$100000290 (0.0)
Missing1689 (5.4)
Health insuranceWith43018 (4.2)
Without39330 (7.6)
Missing967 (7.3)
EducationLess than high school461 (2.2)
High school26520 (7.6)
Community college1147 (6.1)
Some college15210 (6.6)
Bachelors1797 (3.9)
Masters500 (0.0)
Doctoral81 (12.5)
Other292 (6.9)
Missing767 (9.2)
Age had first sex (years)*5–9102 (20.0)
10–1421918 (8.2)
15–1953125 (4.7)
20–24611 (1.6)
≥2590 (0.0)
Missing899 (10.1)
Number of partners in the last yearNone151 (6.7)
120813 (6.3)
2–440523 (5.7)
5–915311 (7.2)
10–15430 (0.0)
≥16311 (3.2)
Missing646 (7.6)
New partner within past 3 monthsNo40527 (6.7)
Yes45022 (4.9)
Missing646 (9.4)
>1 partner last 3 monthsNo53332 (6.0)
Yes32017 (5.3)
Missing666 (9.1)
Partner's sex*Men only800 (0.0)
Women only75048 (6.4)
Men and women321 (3.1)
Missing576 (10.5)
Vaginal sexNo640 (0.0)
Yes79249 (6.2)
Missing636 (9.5)
Oral sexNo373 (8.1)
Yes82647 (5.7)
Missing565 (8.9)
Anal sexNo37517 (4.5)
Yes48532 (6.6)
Missing596 (10.2)
Condom use with vaginal sexAlways1145 (4.4)
Most of the time34014 (4.1)
Some of the time27117 (6.3)
Never13614 (10.3)
Missing585 (8.6)
Condom use with oral or anal sexAlways662 (3.0)
Most of the time1426 (4.2)
Some of the time17812 (6.7)
Never37324 (6.4)
Missing16011 (6.9)
Drink before sexNo24417 (7.0)
Yes59933 (5.5)
Missing765 (6.6)
Ever tested for STINo32719 (5.8)
Yes48031 (6.5)
Don't know250 (0.0)
Missing875 (5.8)
Ever treated for STINo54327 (5.0)
Yes30322 (7.3)
Don't know110 (0.0)
Missing626 (9.7)
Partner had STINo15513 (8.4)
Yes27115 (5.5)
Don't know43622 (5.1)
Missing575 (8.8)
Having trichomoniasis in the pastNo79047 (6.0)
Yes562 (3.6)
Missing736 (8.2)
Urogenital symptoms†None52029 (5.6)
Penile discharge*9511 (11.6)
Pain during urination1165 (4.3)
Penis itching1107 (6.4)
Rash/ulcers/sores543 (5.6)
Pain during intercourse181 (5.6)
Groin/testes pain855 (5.9)
Missing817 (8.6)
Concurrent chlamydial infection*No79443 (5.4)
Yes12512 (9.6)
Concurrent gonococcal infectionNo90754 (6.0)
Yes121 (8.3)
  • *p<0.05.

  • †Not mutually exclusive.

  • ‡US Dollars.

  • STI, sexually transmitted infections.