Research Article
Exploring the Role of Breast Density on Cancer Prognosis among Women Attending Population-Based Screening Programmes
Table 1
Patient-related characteristics by breast density categories.
| | | Total n = 375 (%) | Low breast density (<25%) n = 192 (%) | Intermediate breast density (25–50%) n = 104 (%) | High breast density (>50%) n = 79 (%) |
| | Age groups (years) | | 50–54 | 106 (28.3) | 34 (17.7) | 33 (31.7)a | 39 (49.4) | | 55–59 | 102 (27.2) | 50 (26) | 33 (31.7) | 19 (24.1) | | 60–64 | 103 (27.5) | 64 (33.3) | 24 (23.1) | 15 (19) | | 65–70 | 64 (17.1) | 44 (22.9) | 14 (13.5) | 6 (7.6) | | Menopausal status | | Premenopause | 31 (13.3) | 5 (4.7) | 9 (12.3) | 17 (32.1) | | Menopause | 202 (86.7) | 102 (95.3) | 64 (87.7) | 36 (67.9) | | Hormone replacement therapy | | No | 192 (85) | 86 (84.3) | 60 (84.5) | 46 (86.8) | | Yes | 34 (15) | 16 (15.7) | 11 (15.5) | 7 (13.2) | | Family history of breast cancer | | No | 200 (86.6) | 90 (85.7) | 63 (86.3) | 47 (88.7) | | Yes | 31 (13.4) | 15 (14.3) | 10 (13.7) | 6 (11.3) | | Charlson comorbidity index | | 0 | 285 (76) | 143 (74.5) | 79 (76) | 63 (79.7) | | 1 | 53 (14.1) | 31 (16.1) | 13 (12.5) | 9 (11.4) | | 2 | 37 (9.9) | 18 (9.4) | 12 (11.5) | 7 (8.9) |
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