Table 8 Effect of the inverse regression-based prediction and measurement error correction on Ki67 dichotomisation accuracy at various reference value cutoffs (n = 164)

16/148 (11)

2/16 (13)

18 (11)

0/148 (0)

12/16 (75)

12 (7)

0/148 (0)

9/16 (56)

9 (5)

2/148 (1)

6/16 (38)

8 (5)

22/136 (16)

1/28 (4)

23 (14)

2/136 (1)

13/28 (46)

15 (9)

3/136 (2)

11/28 (46)

14 (9)

5/136 (4)

6/28 (21)

11 (7)

28/123 (23)

1/41 (2)

29 (18)

2/123 (2)

9/41 (22)

11 (7)

2/123 (2)

12/41 (29)

14 (9)

6/123 (5)

6/41 (15)

12 (7)