Table 2

Performance of IDEIA, IDEIA PCE, and Amplicor PCR for the detection of Chlamydia trachomatis in male first void urine and female endocervical swab specimens

Predictive value (%)
Sample source and procedurePrevalence (%)Relative sensitivity (%) (95% CI)Relative specificity (%) (95% CI)Positive (95% CI)Negative (95% CI)
CI, confidence interval; IDEIA, enzyme immunoassay; PCE, polymer conjugate enhanced; PCR, polymerase chain reaction.
Male first void urine
IDEIA23.8 (46/193)79.3 (74.8 to 88.8)100 (97.3 to 100)100 (92.3 to 100)91.8 (86.2 to 95.7)
IDEIA PCE27.5 (53/193)91.4 (81.1 to 94.2)100 (97.3 to100)100 (93.3 to 100)96.4 (91.9 to 98.8)
Amplicor PCR30.1 (58/193)100 (95.9 to 100)100 (97.3 to 100)100 (93.8 to 100)100 (97.3 to 100)
Female endocervical swab
IDEIA18.2 (34/187)85.0 (70.1 to 94.3)100 (97.5 to 100)100 (89.7 to 100)96.7 (92.5 to 98.9)
IDEIA PCE20.3 (38/187)95.0 (83.1 to 99.4)100 (97.5 to 100)100 (90.8 to 100)98.7 (95.2 to 99.8)
Amplicor PCR21.9 (41/187)100 (91.3 to 100)99.3 (96.3 to 100)97.6 (87.1 to 99.9)100 (97.5 to 100)