Table 4

Prevalence of pathogens in cases of urethral discharge (single and multiple infections) according to behavioural, clinical, or laboratory characteristics

Neisseria gonorrhoeaeChlamydia trachomatisTrichomonas vaginalisMycoplasma genitaliumNone of these four pathogens
Totals for each characteristic vary because of missing values; *p<0.05; †p<0.001.
Previous treatment
Yes (n=198)65.2%12.1%13.6%20.2%12.1%
No (n=208)72.1%14.9%18.3%21.2%10.1%
Acquired from sex worker
Yes (n=306)74.2%14.7%15.4%19.6%7.2%
No (n=101)52.5%†8.9%17.8%23.8%22.8%†
Duration of discharge
1–7 days (n=215)80.5%12.6%16.3%15.8%5.6%
8–14 days (n=85)70.6%15.3%14.1%23.5%8.2%
≥15 days (n=110)45.5%†14.5%17.3%27.3%*23.6%†
Any discharge seen
Yes (n=385)71.7%14.0%16.6%20.8%8.3%
No (n=24)25.0%†8.3%4.2%12.5%54.2%†
Purulent discharge seen
Yes (n=303)82.8%11.9%14.5%14.9%5.3%
No (n=103)28.2%†18.4%20.4%35.0%†28.2%†
PMNs/field on Gram stain
≥5 (n=275)86.2%13.5%15.6%16.7%1.5%
1–4 (n=38)28.9%23.7%21.1%28.9%28.9%
0 (n=17)47.1%†17.6%5.9%35.3%*23.5%†
Gram negative diplococci
Present (n=236)98.7%10.6%14.4%10.2%0.4%
Absent (n=94)24.5%†25.5%*19.1%41.5%†19.1%†