Gonorrhoea (NG) positivity at the same anatomical sites in couples
| Couples where one man had throat NG | Couples where both men had throat NG | Total couples | % of couples where both men had throat NG (95% CI) | |
| 37 | 13 | 50 | 26 | (15 to 40) |
| Throat NG positivity when couples were excluded if both men had urethral NG | ||||
| 37 | 11 | 48 | 23 | (12 to 37) |
| Couples where one man had anal NG | Couples where both men had anal NG | Total couples | % of couples where both men had anal NG (95% CI) | |
| 18 | 15 | 33 | 45 | (28 to 64) |
| Anal NG positivity when couples were excluded if both men had urethral NG | ||||
| 18 | 13 | 31 | 42 | (25 to 61) |
| Anal NG positivity when couples were excluded if one or both men had throat NG | ||||
| 7 | 1 | 8 | 13 | (0 to 53) |
NG, Neisseria gonorrhoeae.