Table 2

Impact of individual characteristics of seropositivity for Entamoeba histolytica, Tokyo.

Univariate analysisMultivariate analysis*
OR
(95% CI)
P valueOR
(95% CI)
P value
Sex (male)5.42
(1.95 to 15.06)
<0.0013.17
(1.10 to 9.07)
0.032
Older age
(by 10-year age groups)
1.66
(1.33 to 2.08)
<0.0011.49
(1.17 to 1.90)
0.001
HIV-1 positiveND†
Syphilis infection
 RPR positive5.1
(1.93 to 13.49)
0.0061.26
(0.41 to 3.89)
0.693
 TPHA positive6.19
(3.37 to 11.39)
<0.0014.30
(2.11 to 8.76)
<0.001
Urine Chlamydia trachomatis (TMA) positive‡1.93
(0.58 to 6.47)
0.326
Urine Neisseria gonorrhoeae (TMA) positive‡ND†
  • *Multivariate analysis for age and sex, plus factors with p<0.05 in univariate analysis.

  • †ORs could not be determined in logistic regression analysis because all clients who were HIV-1 positive and/or positive for gonorrhoea by TMA were E. histolytica seronegative.

  • ‡Data of urinary TMA testing available only for 69.0% (1437 of 2083) of total clients.

  • RPR, rapid plasma reagin; TPHA, Treponema pallidum hemagglutination; TMA, transcription-mediated amplification; ND, not determined.