Table 1 Characteristics of the total study population (N = 51,400) and of women with breast cancer (cases) (N = 301) and without breast cancer (N = 50,099)
From: The combined effect of mammographic texture and density on breast cancer risk: a cohort study
Variable | Total study population Median (IQR) | Breast cancer cases Median (IQR) | Non breast cancer cases Median (IQR) | p value | |||
|---|---|---|---|---|---|---|---|
Age (years)a | 56 | (51–63) | 58 | (51–63) | 56 | (51–63) | 0.21 |
Digital screening rounds, number | 2 | (1–3) | 2 | (2–3) | 2 | (1–3) | 0.05 |
Follow up (years)b | 4.2 | (2.0–6.2) | 2.8 | (1.9–4.3) | 4.2 | (2.0–6.2) | <0.01 |
Dense volume (cm3)a | 57.8 | (42.9–78.9) | 63.9 | (48.4–86.9) | 57.8 | (42.9–78.8) | <0.01 |
Percent dense volume (%)a | 6.4 | (4.8–9.8) | 7.5 | (5.5–7.5) | 6.4 | (4.8–9.8) | <0.01 |
Non-dense volume (cm3)a | 804.9 | (518.6–1183.9) | 825.3 | (521.8–1159.1) | 804.9 | (518.5–1184.0) | 0.88 |
Total breast volume (cm3)a | 866.9 | (573.9–1256.7) | 900.8 | (592.4–1228.4) | 866.8 | (573.8–1256.8) | 0.88 |
Texture scorea | 0.50 | (0.48–0.53) | 0.51 | (0.49–0.54) | 0.50 | (0.48–0.53) | <0.01 |