TABLE 1.

Prevalence of C. trachomatis antibodies (IgG and IgA) in different gynecological patient groups according to different assays

Group (n)Prevalencea
Chlamydia-EIApELISAMIF(IgG)b
Subfertility (76)
    IgG31.6 (24)21.1 (16)31.6 (24)
    IgA2.6 (2)1.3 (1)
Pregnant (150)
    IgG24.7 (37)17.3 (26)23.3 (35)
    IgA2 (3)3.3 (5)
Control (220)
    IgG31.4 (69)19.1 (42)31.4 (69)
    IgA3.6 (8)5 (11)
C. trachomatis positive (40)
    IgG82.5 (33)65 (26)62.5 (25)
    IgA12.5 (5)17.5 (7)
  • a Values are percentages. Each parenthetical value is n.

  • b Sera diluted to a titer of 1:64.