Table 1 Characteristics of study population
From: Predicting mammographic density with linear ultrasound transducers
Characteristic | Mean and SD or N and % |
|---|---|
Age (years) | 50.1 (11.6) |
BMI (kg/m2) | 24.6 (4.6) |
Gravida | |
0 | 23 (14.0) |
1 | 42 (25.6) |
2 | 52 (31.7) |
3+ | 47 (28.7) |
Para | |
0 | 30 (18.0) |
1 | 43 (25.7) |
2 | 67 (40.1) |
3+ | 27 (16.2) |
Breastfeeding | |
Yes | 115 (74.2) |
No | 40 (25.8) |
Oral contraception | |
Yes | 24 (14.5) |
No | 142 (85.5) |
Hormone replacement therapy | |
Yes | 1 (0.6) |
No | 166 (99.4) |
Anti-hormone therapy | |
Yes | 61 (36.3) |
No | 107 (63.7) |
Known self-history of breast cancer | |
Yes | 91 (54.1) |
No | 77 (45.9) |
Known self-history of in situ-carcinoma of the breast | |
Yes | 6 (3.6) |
No | 162 (96.4) |