Table 2: Description of the study population by cytological findings.

Variable Cases Controls value Atypia        Positive 2 0 0.001  Negative 98 100 Metaplasia        Positive 42 7 0.001  Negative 58 93 Fungal infection        Positive 7 2 0.001  Negative 93 98 Bacterial infection        Positive 34 3 0.0001  Negative 66 97 Mean NOR counts        <2 84 100 0.001  2.1+ 16 0