Research Article
The Importance of Clinical Data for the Diagnosis of Breast Tumours in North Afghanistan
Table 1
Context variables and correlation in benign lesions versus invasive breast cancer.
| | Variable | Benign cases
(%) | IBC
(%) | Correlation with DIC
-value or chi2, | Percentages of missing values
(%) |
| | Age (years) | | | 14.5 | 5 | | Mean | 28.5 | 45.5 | | 1.0 | | SD | 10.2 | 12.2 | | | | Median | 26 | 45 | | Size (cm) | | | 3.03 | 120 | | Mean | 2.6 | 3.9 | | (23) | | SD | 2.0 | 3.1 | | | | Median | 3-0 | 3.0 | | Pain | | | 7.98 | 159 | | No | 192 (52.5) | 10 (71.9) | | (30.9) | | Yes | 144 (47.5) | 39 (28.1) | | Margin | | | 40.6 | 279 | | Regular | 140 (38.2) | 12 (8.7) | | (54.2) | | Irregular | 226 (61.8) | 127 (91.3) | | Movability | | | 48.5 | 420 | | No | 164 (44.8) | 111 (75.9) | | (81.7) | | Yes | 202 (55.2) | 28 (20.1) | | Skin involvement | | | (88.6) | 351 | | No | 234 (63.9) | 23 (16.6) | | (68.3) | | Yes | 132 (36.1) | 116 (83.4) | | Children | | | 28.9 | 483
(94.0) | | No | 162 (44.3) | 100 (71.9) | | | | Yes | 204 (55.7) | 39 (28.1) | | | | Lactation | | | 25.4 | 387
(75.3) | | No | 119 (32.5) | 80 (57.6) | | | | Yes | 247 (67.5) | 59 (42.4) | | | Axillary involvement | | | 147.7 | 391
(76.1) | | No | 336 (91.2) | 57 (41) | | | | Yes | 30 (8.2) | 82 (59) | | | Consistency (firm) | | | 4.8 | 291
(57.6) | | No | 48 (13.1) | 8 (5.8) | | | | Yes | 318 (86.9) | 131 (94.2) | | | Duration (months) | | | 55.7 | 63
(12.3) | | Mean | 10.42 | 18.04 | | | | SD | 10-0 | 29.3 | (Kruskal test) | | Median | 5 | 10 | |
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Note that the missing values are replaced by the mice soft package of R. |
