Table 1.

Descriptive characteristics of the 133 postmenopausal women candidate to become breast cancer and 133 control women: baseline values

CasesControlsMedian difference (IC 95%)t Student P value
Age, y; median (SD)57 (5.95)56 (5.89)−0.5:2.50.85
Age at menarche, y; median (interquartile range)13 (12–14)13 (12–14)−0.36:0.360.93
IGF1; median (interquartile range)115 (95.5–155)111 (92.2–137.5)−6.2:14.20.16
TTS; median (interquartile range)0.28 (0.21–0.36)0.26 (0.2–0.32)−0.02:0.060.21
BMI, kg/m2; median (interquartile range)25.6 (23.3–28.3)25.7 (23.6–28.4)−1.13:0.780.42
Fasting glucose; median (interquartile range)84 (78–91)85 (78–90)−7.8:5.80.24
Alcohol intake, g/d; median (interquartile range)4.8 (0–24)3.4 (0–18)−2.3:5.10.75
Age at first birth; median (SD)26 (4.6)25 (3.6)−0.09:2.10.09
Full-term pregnancies; median (SD)2 (1)2 (1)−0.28:0.280.92
Smoking; % of smoker/ex smoker/not smoker19/12/6916/12/720.7a

Abbreviations: IGFI, insulin growth factor 1; TTS, total testosterone.

  • aχ2 P value.