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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Cancer. 2015 May 18;121(17):2976–2983. doi: 10.1002/cncr.29445

Table 2.

Outcomesa of Cervical Biopsies in 3 Managed Care Plans, Overall and by Age Group, as a Percentage of All Cervical Biopsies (1998-2007)b

Age group Number of biopsies Result, %
Normal CIN-1 CIN-2 CIN-3/carcinoma in situ Squamous cell carcinoma Adeno-carcinoma/AIS Unknown
21-30 10,598 56.9 31.8 6.3 3.1 0.1 0.1 1.8
31-40 10,038 75.4 15.7 3.7 2.8 0.3 0.3 1.8
41-50 14,292 88.1 7.4 1.2 1.0 0.3 0.3 1.8
51-60 9,883 90.8 4.4 0.8 0.6 0.3 0.3 2.7
61-65 1,846 89.9 3.8 0.5 0.7 0.5 0.9 3.7
Overall 46,657 78.9 13.9 2.8 1.8 0.2 0.3 2.0

Abbreviations: AIS, adenocarcinoma in situ; CIN, cervical intraepithelial neoplasia; SCC, squamous cell carcinoma.

a

For women who underwent multiple biopsies on the same date, the most severe result was selected using the following order: adenocarcinoma/AIS, SCC, CIN-3/SSC in situ, CIN-2, CIN-1, normal, and unknown.

b

Excluded 824 women with prior human papillomavirus vaccination; excluded 17,065 records with treatment received within 10 days before or after the pathology collection date.