Fig 2.

Proportion of women classified as higher risk (colposcopy referral recommended), with and without scaling to account for women who had not yet had their 12 month repeat test, by age group and reason for referral. Solid bars represent referrals observed so far; transparent bars and values in parentheses include scaling to account for women who had not yet had their 12 month repeat test. Results are restricted to women aged 25-69, as different management is recommended for women aged 70-74 undergoing exit testing. HPV16/18+=positive for human papillomavirus (HPV) types 16/18 at baseline screening test. Triage+=positive for HPV types not 16/18 with atypical squamous cells-cannot exclude high grade squamous intraepithelial lesion (ASC-H) or worse or glandular abnormalities on liquid based cytology. 12 month follow-up (HPV16/18+ or HPV types not 16/18 and ASC-H+)=12 month test result is HPV positive, and either positive for HPV16/18, or liquid based cytology result is ASC-H or worse or any glandular abnormality, or both. 12 month follow-up (HPV types not 16/18 and ≤LSIL (low grade squamous intraepithelial lesion))=12 month test result is HPV types not 16/18 positive and liquid based cytology result is negative or ASC-US (atypical squamous cells of undetermined significance) or LSIL. ASC-H+=ASC-H, high grade squamous intraepithelial lesion, or more severe abnormality or any glandular abnormality, or both. See supplementary tables A10 and A11 for data supporting this figure