Table 2 Characteristics of NHS/NHSII and MMHS study population
From: A genome-wide association study of mammographic texture variation
|  | NHS/NHSII (n = 4831) Mean (SD) | MMHS (n = 2209) Mean (SD) |
|---|---|---|
Age (years) | 53.8 (9.2) | 58.9 (11.9) |
BMI (kg/m2) | 25.9 (5.3) | 28.0 (6.2) |
Dense area | 43.4 (29.3) | 23.8 (17.0) |
Non-dense area | 109.3 (73.7) | 130 (67.1) |
Percent density | 32.8 (19.7) | 17.9 (12.9) |