O-1 the Prevalence of Cin in Women with Postcoital Bleeding over 10 Years in a Colposcopy Clinic

Results: Of 386 patients with normal referral cytology, 32 (8.3%) had CIN I, 14 (3.6%) had CIN II/III, 2 patients (0.5%) had glandular abnormalities (CGIN) and 1 (0.3%) had invasive cervical cancer stage 1b1. Assuming cumulative smears have 93% specificity, there is a more than expected increase in CIN in women with normal cytology and PCB (using Chi-squared test p<0.01). Of 92 patients with no referral cytology, 9 (9.8%) had CIN I, 5 (5.4%) had CIN II/III, and 3 patients (3.3%) had CGIN. Of 40 patients with borderline cytology, 4 (10%) had CIN II/ III, and 1(0.2%) had CGIN. Significantly more patients with mild dyskariosis and postcoital bleeding had CIN II/III (34 out of 202 (16.8%) than mild dyskariosis alone in our unit (13%, using Chi-squared p<0.01). Of 79 patients with moderate dyskariosis, 46 (50.6%) had CIN II/III, 2 (2.5%) had microinvasive cervical cancer, none had CGIN. Of 70 patients with severe dyskariosis, 53 (75.7%) had CIN II/III. Of 3 patients with glandular abnormalities 2 had CIN II/III only, and 1 patient had high grade CGIN.