Table 1 |
|
|
Selected characteristics of the 825 participants |
|
|
Characteristic |
Value |
|
|
|
|
Ethnicity |
|
|
White |
262 (31.8%) |
|
Japanese American |
361 (43.8%) |
|
Native Hawaiian |
202 (24.5%) |
|
Menopausal status, hormone replacement therapy at first mammogram |
|
|
Premenopausal |
201 (24.4%) |
|
Postmenopausal, no hormone replacement therapy |
204 (24.7%) |
|
Estrogen only hormone replacement therapy |
228 (27.6%) |
|
Estrogen and progestin hormone replacement therapy |
192 (23.3%) |
|
Case status |
|
|
Case |
361 (43.8%) |
|
Control |
464 (56.2%) |
|
Family history (mother or sister) |
|
|
Yes |
114 (13.8%) |
|
No |
711 (86.2%) |
|
Mean age over all mammograms (years) |
59.5 ± 8.8 |
|
Mean body mass index over all mammograms (kg/m2) |
25.3 ± 5.5 |
|
Mean percent dense area (%) |
32.7 ± 22.2 |
|
Mean dense area (cm2) |
32.5 ± 25.4 |
|
Mean breast area (cm2) |
117.1 ± 60.0 |
|
|
|
|
Data presented as n (%) or mean ± standard deviation. The set of 825 subjects is the union of the individual sets of 634 to 806 subjects who were genotyped for each polymorphism of interest; that is, 825 subjects had at least one polymorphism of interest genotyped. |
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|
Woolcott et al. Breast Cancer Research 2009 11:R10 doi:10.1186/bcr2229 |
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