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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Stat Methods Med Res. 2010 Mar 31;19(5):429–449. doi: 10.1177/0962280209359842

Table 2.

Empirical probability of a first FP and empirical cumulative probability of a first FP by screening round.

Screen Number Number Exams First FP (%) Cumulative FP (%)
1 159,574 16.2 16.2
2 67,419 9.3 23.5
3 36,161 8.2 29.1
4 19,873 8.1 34.0
5 10,702 7.5 38.0
6 5,517 7.2 40.9
7 2,688 6.8 43.5
8 1,207 7.1 44.4
9 429 7.2 48.2
10 149 5.4 44.5