Table 2.
Core-to-Case Collapse Analyses Using 14% and 10% Cutoffsa
| TMA Cores | Full Section | ||||||
|---|---|---|---|---|---|---|---|
| <14%, No. (%) | ≥14%, No. (%) | Total, No. (%) | Sensitivity, % | Specificity, % | Accuracy, % | κ (95% CI) | |
| 0.6 mm | |||||||
| <14%b | 70 (65) | 0 (0) | 70 (65) | 100 | 81 | 85 | 0.63 (0.48-0.79) |
| ≥14%b | 16 (15) | 21 (20) | 37 (35) | ||||
| Totalb | 86 (80) | 21 (20) | 107 (100) | ||||
| <14%c | 81 (76) | 6 (6) | 87 (81) | 71 | 94 | 90 | 0.67 (0.49-0.85) |
| ≥14%c | 5 (5) | 15 (14) | 20 (19) | ||||
| Totalc | 86 (80) | 21 (20) | 107 (100) | ||||
| 1.0 mm | |||||||
| <14%b | 79 (78) | 3 (3) | 82 (81) | 85 | 98 | 95 | 0.84 (0.71-0.98) |
| ≥14%b | 2 (2) | 17 (17) | 19 (19) | ||||
| Totalb | 81 (80) | 20 (20) | 101 (100) | ||||
| <14%c | 81 (80) | 5 (5) | 86 (85) | 75 | 100 | 95 | 0.83 (0.68-0.97) |
| ≥14%c | 0 (0) | 15 (15) | 15 (15) | ||||
| Totalc | 81 (80) | 20 (20) | 101 (100) | ||||
| 0.6 mm | |||||||
| <10%b | 45 (42) | 5 (5) | 50 (47) | 87 | 66 | 74 | 0.49 (0.33-0.64) |
| ≥10%b | 23 (21) | 34 (32) | 57 (53) | ||||
| Totalb | 68 (64) | 39 (36) | 107 (100) | ||||
| <10%c | 60 (56) | 12 (11) | 72 (67) | 69 | 88 | 81 | 0.59 (0.43-0.75) |
| ≥10%c | 8 (7) | 27 (25) | 35 (33) | ||||
| Totalc | 68 (64) | 39 (36) | 107 (100) | ||||
| 1.0 mm | |||||||
| <10%b | 51 (50) | 10 (10) | 61 (60) | 74 | 81 | 78 | 0.54 (0.37-0.71) |
| ≥10%b | 12 (12) | 28 (28) | 40 (40) | ||||
| Totalb | 63 (62) | 38 (38) | 101 (100) | ||||
| <10%c | 57 (56) | 13 (13) | 70 (69) | 66 | 90 | 81 | 0.58 (0.42-0.75) |
| ≥10%c | 6 (6) | 25 (25) | 31 (31) | ||||
| Totalc | 63 (62) | 38 (38) | 101 (100) | ||||
CI, confidence interval; TMA, tissue microarray.
aAt least one matching core is required to be included in the comparison.
bComparison is made using mitotically active approach.
cComparison is made using weighted approach.