Table 1

Baseline characteristics of breast cancer cases and controls by menopausal status

PremenopausalPostmenopausal
Cases n = 66Controls n = 66PCases n = 60Controls n = 60P
Age at MHC (range) yr33.7 (19–46)34.3 (19–52)49.5 (29–73)49.2 (28–73)
Age at diagnosis (range) yr44.2 (31–53)65.3 (52–82)
BMI (range)24.0 (17–58)23.1 (18–42)0.2224.5 (19–35)24.2 (17–37)0.96
IGF-I ng/ml258 ± 86244 ± 900.15227 ± 71243 ± 760.11
Insulin μIU/ml66 ± 4167 ± 550.5851 ± 2960 ± 410.33
Glucose mg/dl170 ± 39175 ± 450.60191 ± 45174 ± 500.10
IGFBP-1 ng/ml46 ± 3642 ± 330.7044 ± 3543 ± 290.98
IGFBP-2 ng/ml376 ± 208393 ± 2260.78470 ± 247550 ± 2530.10
IGFBP-3 ng/ml2510 ± 7002310 ± 6700.042220 ± 5302420 ± 6600.04