Table 3. Association between surgery pathology report information (tumor type, tumor sit and tumor size) and age groups during 2016-2018.
| Characteristic | Age | Total | X2 | P-Value | |||
|---|---|---|---|---|---|---|---|
| ≤ 50 | 50-69 | >60 | |||||
| Tumor type | |||||||
| Ductal carcinoma in situ | 305 (5.3) | 235 (4.5) | 35 (3.4) | 575 (4.8) | |||
| Invasive ductal carcinoma | 3721 (64.8) | 3415 (65.3) | 650 (63.5) | 7786 (64.9) | |||
| Invasive lobular carcinoma | 243 (4.2) | 238 (4.5) | 41 (4.0) | 522 (4.4) | 32.72 | 0.001† | |
| Lobular carcinoma in situ | 208 (3.6) | 183 (3.5) | 57 (5.6) | 448 (3.7) | |||
| Others | 91 (1.6) | 123 (2.3) | 30 (3.0) | 244 (2.0) | |||
| Not report/ missing | 1176 (20.5) | 1039 (19.9) | 210 (20.5) | 2425 (20.2) | |||
| Tumor sit | |||||||
| central portion of breast | 797 (13.9) | 738 (14.1) | 146 (14.3) | 1681 (14.0) | |||
| lower inner quadrant | 23 (0.4) | 26 (0.5) | 8 (0.8) | 57 (0.5) | |||
| lower outer quadrant | 45 (0.8) | 64 (1.2) | 10 (1.0) | 119 (1.0) | |||
| Nipple | 46 (0.8) | 61 (12) | 17 (1.7) | 124 (1.0) | 17.74 | 0.156† | |
| upper inner quadrant | 54 (0.9) | 51 (1.0) | 8 (0.8) | 113 (0.9) | |||
| upper outer quadrant | 4273 (74.4) | 3824 (72.0) | 751 (73.5) | 8848 (73.8) | |||
| Not report/ missing | 506 (8.8) | 469 (9.0) | 83 (8.1) | 1058 (8.8) | |||
| Tumor size | |||||||
| Can be assessed | 2018 (35.1) | 1968 (37.6) | 395 (38.6) | 4381 (36.5) | |||
| Cannot be assessed | 25 (0.4) | 21 (0.4) | 0 (0.0) | 46 (0.4) | 13.43 | 0.009† | |
| Not report/ missing | 3701 (64.4) | 3244 (62) | 628 (61.4) | 7573 (63.1) | |||
† Chi-squared test. *