Table 1 Patient Characteristics by Fractal Dimension Category
From: Morphologic complexity of epithelial architecture for predicting invasive breast cancer survival
| Â | Number (%) | < 1.56 (N = 141) % group | 1.56 - 1.75 (N = 148) % group | >1.75 (N = 90) % group | P-value |
|---|---|---|---|---|---|
Age | Â | Â | Â | Â | Â |
   ≤ 55 years | 78 (20.6) | 23.4 | 23.7 | 11.1 | 0.039 |
   >55 years | 301 (79.4) | 76.6 | 76.3 | 88.9 |  |
Size of tumour | Â | Â | Â | Â | Â |
   ≤ 2 cm | 272 (71.8) | 78.7 | 69.6 | 64.4 | 0.047 |
   >2 cm | 107 (28.2) | 21.3 | 30.4 | 35.6 |  |
Grade of tumour | Â | Â | Â | Â | Â |
   1 & 2 | 338 (89.2) | 92.9 | 91.9 | 78.9 | 0.001 |
   3 | 41 (10.8) | 7.1 | 8.1 | 21.1 |  |
Lymph node status | Â | Â | Â | Â | Â |
   Negative | 300 (79.2) | 85.1 | 81.8 | 65.6 | 0.001 |
   Positive | 79 (20.8) | 14.9 | 18.2 | 34.4 |  |
Estrogen-receptor status | Â | Â | Â | Â | Â |
   Positive | 355 (93.7) | 93.6 | 93.9 | 93.3 | 0.98 |
   Negative | 24( 6.3) | 6.4 | 6.1 | 6.7 |  |
HER-2/neu status | Â | Â | Â | Â | Â |
   Negative | 350 (92.4) | 95.0 | 89.9 | 92.2 | 0.25 |
   Positive | 29 (7.6) | 5.0 | 10.1 | 7.8 |  |