Table 4 Concordance of rectal chlamydia and urethral chlamydia between men in 406 partnerships in which both men did not have symptoms of urethritis or proctitis
Urethra negative | Urethra positive | Total number of tests | Urethral chlamydia positivity % (95% CI) | |
|---|---|---|---|---|
Rectum negative | 767 | 10 | 777 | 1.3 (0.6 to 2.4) |
Rectum positive | 27 | 8 | 35 | 22.8 (10.4 to 40.1) |
Total number of tests | 794 | 18 | 812 | 2.2 (1.3 to 3.5) |
Rectal chlamydia positivity % (95% CI) | 3.4 (2.3 to 4.9) | 44.4 (21.5 to 69.2) | 4.3 (3.0 to 5.9) |