Table 2.

T. vaginalis α-actinin antibody levels in 691 prostate cancer cases and 691 matched controls in the Health Professionals Follow-up Study, 1993 to 2000

CasesControlsP*
Mean absorbance0.220.210.24
Median absorbance0.160.160.59
Score (n)
    0 (absorbance < 0.150)312302
    1+ (0.150 ≤ absorbance < 0.250)167193
    2+ (0.250 ≤ absorbance < 0.500)1581580.21
    3+ (0.500 ≤ absorbance < 1.000)5037
    4+ (absorbance ≥ 1.000)41
    ≥3+54380.11
Absorbance ≥ 0.400 (n)87650.07
  • * Assessed by paired t test for mean values, Wilcoxon signed rank test for median values, McNemar's test for dichotomous variables, and the likelihood ratio test for polychotomous variables.