TABLE 1.
Detection of C. trachomatis infection in 73 women with four matched specimen types
| Parameter |
C. trachomatis infection detected in the following specimen typea:
|
No. (%) of infected female patients | |||
|---|---|---|---|---|---|
| Endocervical swab | Urethral swab | SCVS | FVU sample | ||
| + | + | + | + | 59 (80.8) | |
| + | + | − | − | 3 (4.1) | |
| + | − | + | − | 4 (5.5) | |
| + | + | + | − | 4 (5.5) | |
| + | + | − | + | 1 (1.4) | |
| + | − | + | + | 1 (1.4) | |
| − | + | + | + | 1 (1.4) | |
| Sensitivity (%)b | 72/73 (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) | |
+, C. trachomatis infection detected; −, C. trachomatis infection not detected.
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).