Table 1

Smear results for 653 sex workers and 653 age matched controls in Belgium (1992–2001)

Smear resultSex worker (n = 653) (95% CI)Control (n = 653) (95% CI)OR (95% CI)p Value
Negative for intraepithelial lesion or malignancy78.9% (75.7 to 82.0)95.1% (93.4 to 96.8)0.85 (0.68 to 1.06)0.13
AGUS/ASCUS2.6% (1.4 to 3.8)1.4% (0.5 to 2.3)1.90 (0.80 to 4.67)0.11
LSIL15.6% (12.8 to 18.4)2.9% (1.6 to 4.2)6.18 (3.65 to 10.56)<0.001
HSIL2.9% (1.6 to 4.2)0.6% (0.1 to 1.2)4.86 (1.55 to 16.97)<0.001
Follow up group, women with AGUS/ASCUS, LSIL, or HSIL21.1% (18.0 to 24.3)4.9% (3.2 to 6.6)7.69 (4.73 to 12.59)<0.001