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BACKGROUNDCervical intraepithelial neoplasia grade 2, 3, and adenocarcinoma in situ (CIN2+) lesions can be monitored as early indicators of human papillomavirus (HPV) vaccine impact. Changes to screening utilization will affect observed reductions in CIN2+ rates and complicate the interpretation of vaccine impact.
METHODSFrom 2008 to 2012, 9119 cases of CIN2+ among 18‐ to 39‐year‐old residents of...