Table 1 Characteristics of the Karma study population
From: Common genetic variation and novel loci associated with volumetric mammographic density
| Â | Karma-OncoArray (n = 5827) | Karma-iCOGS (n = 4021) |
|---|---|---|
Age, years, mean (SD) | 60.2 (9.2) | 53.6 (9.4) |
Body mass index, kg/m2, mean (SD) | 25.5 (4.2) | 25.3 (4.2) |
Menopausal status, % (n) | ||
 Premenopausal | 22.8 (1327) | 49.0 (1969) |
 Postmenopausal | 77.2 (4500) | 51.0 (2052) |
Percent dense volume (%), median (IQR) | 6.7 (5.2) | 8.4 (6.5) |
Dense volume, cm3, median (IQR) | 53.4 (31.1) | 60.3 (36.9) |
Nondense volume, cm3, median (IQR) | 744 (616) | 676 (581) |
Family history of breast cancer, % (n) | 13.7 (769) | 12.0 (482) |