Table 4 Breast density and subsequent breast cancer mortality in relation to mode of detection
From: Breast density and mode of detection in relation to breast cancer specific survival: a cohort study
Rate of breast cancer deaths | HR1 | HR2 | HR3 | HR4 | |
|---|---|---|---|---|---|
All | |||||
Fatty | 7 of 93 | 1.00 | 1.00 | 1.00 | 1.00 |
Moderate | 37 of 312 | 1.82 (0.81-4.08) | 1.80 (0.79-4.10) | 2.02 (0.87-4.67) | 2.09 (0.90-4.85) |
Dense | 32 of 214 | 1.92 (0.85-4.35) | 2.24 (0.97-5.13) | 2.56 (1.07-6.11) | 2.63 (1.10-6.30) |
p-value for trend | 0.173 | 0.058 | 0.039 | 0.035 | |
Non-symptomatic | |||||
Fatty | 3 of 50 | 1.00 | 1.00 | 1.00 | – |
Moderate | 13 of 183 | 1.37 (0.39-4.81) | 1.30 (0.36-4.76) | 1.40 (0.38-5.17) | – |
Dense | 11 of 117 | 1.47 (0.41-5.27) | 1.66 (0.43-6.41) | 2.04 (0.49-8.49) | – |
p-value for trend | 0.586 | 0.427 | 0.293 | – | |
Symptomatic | |||||
Fatty | 4 of 43 | 1.00 | 1.00 | 1.00 | – |
Moderate | 24 of 129 | 2.43 (0.84-7.02) | 2.20 (0.74-6.51) | 2.62 (0.86-7.98) | – |
Dense | 21 of 97 | 2.33 (0.80-6.80) | 2.71 (0.91-8.06) | 3.40 (1.06-10.90) | – |
p-value for trend | 0.216 | 0.081 | 0.045 | – |