Table 1.

Characteristics of women included in the study (n = 616)

VariableMedian (range)
Age (y)60 (55-71)
BMI (kg/m2)27.1 (13.1-47.0)
No. full-term pregnancies3 (0-11)
Age at first birth (n = 518)22 (16-39)
Mammographic density (%)8.5 (0-69.2)
Mammographic density (absolute, cm2)13.2 (0-155.2)
Enterolactone (nmol/L)
16.7 (0.3-176.9)
Postmenopausal hormone therapy use
n (%)
    Current use162 (26)
    Current nonuse454 (74)
Smoking (n = 616)
    Current daily smoking170 (27)
    Current nonsmoking404 (66)
    Smoking occasionally42 (7)
Alcohol (n = 547)
    Drinks alcohol455 (83)
    Does not drink alcohol92 (17)