TABLE 1.

Detection of C. trachomatis infection in 73 women with four matched specimen types

ParameterC. trachomatis infection detected in the following specimen typea:No. (%) of infected female patients
Endocervical swabUrethral swabSCVSFVU sample
++++59 (80.8)
++3 (4.1)
++4 (5.5)
+++4 (5.5)
+++1 (1.4)
+++1 (1.4)
+++1 (1.4)
Sensitivity (%)b72/73 (98.6; 96.0-100)68/73 (93.2; 87.4-98.9)69/73 (94.5; 89.3-99.7)62/73 (84.9; 76.7-93.1)
  • a +, C. trachomatis infection detected; −, C. trachomatis infection not detected.

  • b The percentage and 95% CI (as a range) are shown in parentheses. The sensitivity of C. trachomatis detection with endocervical swabs was significantly higher than that with FVU (P = 0.0039; 83.6% agreement) but did not differ significantly from that with SCVSs (P = 0.1797; 93.2% agreement) or with urethral swabs (P = 0.1025; 91.8% agreement). The sensitivity with FVU specimens was significantly lower than that with vaginal swabs (P = 0.0196; 87.8% agreement) or with urethral swabs (P = 0.0339, 89.0% agreement), but that with vaginal swabs did not differ significantly from that with urethral swabs (P = 0.7389; 87.7% agreement).