Table 2.

Plasma enterolactone levels in relation with selected variables

n (%)Enterolactone (nmol/L)P
Age in tertiles, n = 616
    <59202 (33)12.8 (10.8-15.2)
    59-63223 (36)14.5 (12.5-16.7)
    >63191 (31)12.7 (10.9-14.8)0.41*
No. full-term pregnancies, n = 616
    039 (6)17.7 (12.3-25.3)
    1-2255 (41)13.0 (11.3-15.0)
    3181 (30)13.9 (11.8-16.4)
    4 and more141 (23)12.3 (10.2-14.9)0.29
Age at first birth, n = 577
    <2079 (14)10.1 (7.9-13.1)
    20-25343 (59)13.3 (11.8-15.0)
    >25155 (27)14.5 (12.1-17.3)0.05
Postmenopausal hormone use, n = 616
    Current use162 (26)13.6 (11.2-16.6)
    Current nonuse454 (74)13.3 (12.0-14.7)0.81*
BMI tertiles, n = 616
    BMI <25.2184 (30)14.0 (11.9-16.6)
    BMI 25.2-29.2212 (34)15.8 (13.5-18.4)
    BMI >29.2220 (36)10.9 (9.4-12.7)0.02
Smoking, n = 574
    Current nonsmoking404 (70)14.5 (12.9-16.2)
    Current daily smoking170 (30)10.0 (8.4-11.9)<0.01*
Alcohol, n = 542
    Does not drink alcohol92 (17)11.2 (8.8-14.3)
    Drinks alcohol455 (83)14.1 (12.7-15.7)0.08*
  • NOTE: Enterolactone was log10 transformed in the analyses; reported means are back transformed.

  • * ANOVA.

  • Test for trend.

  • Fifty-nine of the 577 women have imputed values for age at first birth.