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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Cancer. 2011 Nov 14;118(11):2796–2803. doi: 10.1002/cncr.26519

Table 1.

Characteristics of GUTS girls by family history of breast cancer or maternal BBD (GUTS girls: N=67 biopsy-confirmed BBD cases, 6741 non-cases).

Family History Disease Group:
FamHist None* Mother BBD Mother BC Aunt BC Grandmother BC
GUTS girls N= 4678 1264 260 237 749
GUTS BBD cases N= (biopsy-confirmed) 35 18 5 6 10
Percent BBD cases(%) 0.75 1.42 1.92 2.53 1.34
 Risk Factor Means:
Baseline age (yrs) 12.0 12.1 12.0 12.1 12.1
Adoles Alcohol (drinks/day) 0.2 0.2 0.2 0.2 0.2
PHV (inch/yr) 3.4 3.3 3.3 3.6 3.3
Menarche age (yr) 12.8 12.9 12.8 12.9 12.9
Adult height (in) 65.4 65.3 65.3 65.2 65.4
Childhood BMI (kg/m2) 18.2 17.9 18.4 18.1 18.1
BMI change (kg/m2) 4.5 4.5 4.5 4.2 4.3
Young Adult BMI (kg/m2) 23.7 23.5 23.9 23.3 23.5
Adoles Waist circumf (inch) 29.5 29.2 29.5 29.3 29.5
*

“FamHist None” group omits girls with either maternal BBD or family history of breast cancer.