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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Am J Obstet Gynecol. 2010 Aug 30;203(5):481.e1–481.e9. doi: 10.1016/j.ajog.2010.06.048

Figure 1.

Figure 1

Projected diagnostic yield in colposcopically-guided biopsy examinations processed at Alberta Hospital 2003–2007: Percent of exams where endocervical curettage (ECC) detected CIN2* or worse that would have been missed by cervical biopsy alone (cervical biopsy diagnosis less than CIN2) by patient age and referral cytology

*Cervical Intraepithelial Neoplasia Grade 2

Error bars indicate 95% confidence interval. Follow-up exams (n=6,346) are not presented as the diagnostic yield was 0.6% and not correlated with age (p=.99).