TABLE 4.

C. trachomatis antibody status in samples positive and negative for C. pneumoniae

Group and assayNo. of samples tested by each C. trachomatis assay with the following C. pneumoniae result by MIF:% of patient group positive for C. trachomatis by each assay and with the following C. pneumoniae result by MIF:P value by Fisher's exact test
NegativePositiveNegativePositive
Children not exposed to C. trachomatisb
    Pgp35311911.93.70.14
    Ani Labsystems436a1441.10.70.54
    SeroCT5311912.82.60.56
    Medac5311913.84.70.35
C. trachomatis-exposed patients
    Pgp311024655.558.90.31
    Ani Labsystems11024646.450.40.28
    SeroCT11024644.548.40.29
    Medac11024638.247.20.07
    MIF for C. trachomatis11024642.760.20.0017
  • a HPA pediatric serum samples had insufficient volume available for the Ani Labsystems assay.

  • b Results exclude the 18 sera positive for C. trachomatis by MIF.