|
Description of the study population (n = 737) |
|
| Mean ± SD or Percentage |
|
|
|
|
| Growth factors |
|
| Total IGF-I, ng/mL |
224.0 ± 63.7 |
| Intact IGFBP-3, ng/mL |
1,044 ± 234 |
| Fragmented IGFBP-3, ng/mL |
3,762 ± 908 |
| Total IGFBP-3, ng/mL |
4,806 ± 910 |
| Characteristics |
|
| Age at mammography, years |
46.8 ± 4.6 |
| Body mass index, kg/m2 |
25.2 ± 4.5 |
| Waist-to-hip ratio |
0.78 ± 0.06 |
| Alcohol intake, drinks/week |
3.4 ± 3.8 |
| Energy intake, kilocalories/day |
1,905 ± 514 |
| Physical activity, MET-hours/week |
27.2 ± 22.2 |
| Parity, parous percentage |
75.9 |
| Smoking, current percentage |
14.9 |
| Mammographic breast density |
|
| Percent density, percentage |
42.4 ± 24.4 |
| Absolute density, cm2 |
47.0 ± 28.8 |
|
IGF, insulin-like growth factor; IGFBP-3, insulin-like growth factor-binding protein-3; MET, metabolic equivalent; SD, standard deviation. | |
Diorio et al. Breast Cancer Research 2008 10:R42 doi:10.1186/bcr2093 |
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