Table 1 Breast density of 9716 breast cancer patients categorized by age
Age (years) | Breast density of 9716 breast cancer patients categorized by agea | ||||
|---|---|---|---|---|---|
No. of patients | Breast tissue density | ||||
Predominantly fat | Scattered fibroglandular | Heterogeneously dense | Extremely dense | ||
19–24 | 13 | 0 (0.00%) | 2 (15.38%) | 5 (38.46%) | 6 (46.15%) |
25–29 | 109 | 0 (0.00%) | 16 (14.68%) | 64 (58.72%) | 29 (26.61%) |
30–34 | 262 | 5 (1.91%) | 43 (16.41%) | 161 (61.45%) | 53 (20.23%) |
35–39 | 511 | 8 (1.57%) | 88 (17.22%) | 355 (69.47%) | 60 (11.74%) |
40–44 | 1039 | 13 (1.25%) | 183 (17.61%) | 741 (71.32%) | 102 (9.82%) |
45–49 | 1383 | 32 (2.31%) | 285 (20.61%) | 988 (71.44%) | 78 (5.64%) |
50–54 | 1575 | 100 (6.35%) | 494 (31.37%) | 935 (59.37%) | 46 (2.92%) |
55–59 | 1720 | 232 (13.49%) | 749 (43.55%) | 725 (42.15%) | 14 (0.81%) |
60–64 | 1422 | 327 (23.00%) | 666 (46.84%) | 424 (29.82%) | 5 (0.35%) |
65–69 | 782 | 281 (35.93%) | 328 (41.94%) | 171 (21.87%) | 2 (0.26%) |
70–74 | 474 | 201 (42.41%) | 192 (40.51%) | 80 (16.88%) | 1 (0.21%) |
75–79 | 313 | 159 (50.80%) | 119 (38.02%) | 35 (11.18%) | 0 (0.00%) |
80–84 | 91 | 43 (47.25%) | 42 (46.15%) | 5 (5.49%) | 1 (1.10%) |
85–89 | 21 | 12 (57.14%) | 6 (28.57%) | 3 (14.29%) | 0 (0.00%) |
90–94 | 1 | 1 (100.00%) | 0 (0.00%) | 0 (0.00%) | 0 (0.00%) |
All ages | 9716 | 1,414 (14.55%) | 3213 (33.07%) | 4692 (48.29) | 397 (4.09) |