Table 2 Association of organism with microscopic non-gonococcal urethritis (NGU) in symptomatic and asymptomatic men
Patients with symptoms of NGUPatients without symptoms of NGU
PMNL/HPFPMNL/HPF
0–9>9OR (CI)0–9>9OR (CI)
Chlamydia trachomatis positive58 (9%)560 (91%)9.8 (7.4 to 13)75 (20%)296 (80%)6.6 (5.1 to 8.6)
Mycoplasma genitalium positive37 (18%)170 (82%)4.7 (3.2 to 6.7)38 (35%)69 (65%)3.1 (2 to 4.6)
M genitalium and C trachomatis negative1108 (50%)1091 (50%)3085 (63%)1837 (37%)
  • PMNLs/HPF, polymorphic mononuclear leucocytes per high-power field.