Table 3

Usefulness of determinants of infection for screening purposes

DeterminantSensitivity (%)Percentage of populationPrevalence in population with determinant (%) (positive predictive value)
Age 18–2776.962.06.2
>1 partner in the past year66.630.610.9
No contraception48.717.114.3
Dysuria/frequent urination33.316.010.5
Partner having urinary complaints (dysuria/discharge)20.55.020.5
Frequent postcoital bleeding7.61.233.3
Location of practice (inner city)92.372.86.4