Pathogens isolated from urethra of men with urethritis in more recent studies (as percentage)
| Study | Population studied | Chlamydia trachomatis | Mycoplasma genitalium | Trichomonas vaginalis | Other | No pathogen |
|---|---|---|---|---|---|---|
| PMN, polymorphonuclear leucocytes; hpf, high power field. | ||||||
| Bradshaw et al20 | Only symptomatic | 20 | 9 | 1 | 7 | 63 |
| Falk et al5 | >10 PMN/hpf | 22.5 | 12.5 | 65 | ||
| Anagrius et al4 | All attendees | 7.4 | 7.7 | 84.9 | ||
| Geisler et al26 | All attendees | 27 | Not done | 73 | ||
| Marrazzo et al9 | All attendees | 17 | Not done | 83 | ||