Table 2.
Rate* of biopsies and precancer detection over 3 year periods and ratio of detection
| Years | Open Cohort |
Closed Cohort^ | ||||
|---|---|---|---|---|---|---|
| Rate of Biopsy | Rate of Precancer# | Biopsy: Precancer | Rate of Biopsy | Rate of Precancer | Biopsy: Precancer | |
| 2004–2006 | 1373.5 | 82.0 | 16.8 | 1535.5 | 80.5 | 19.1 |
| 2007–2009 | 2230.8 | 140.6 | 15.9 | 2347.5 | 118.6 | 19.8 |
| 2010–2012 | 2738.4 | 126.0 | 21.7 | 2793.9 | 84.9 | 32.9 |
*
Rate is per 100,000 women screened and has been age-adjusted to the 2000 US census population
^
Closed cohort = long-term screening cohort
#
Precancer= CIN3 and AIS