Table 6

Adjusteda mean IGF-I, IGFBP-3, and molar ratio (IGF-I:IGFBP-3) by quantiles of soy indicators and gender, Singapore Chinese Health Study

n Male/FemaleIGF-I ng/mlIGFBP-3 ng/mlMolar ratio (IGF-I:IGFBP-3)*1000
Soy protein density
P for linear trend0.010.390.
P for gender interactionb0.010.510.01
Isoflavonoid density
P for linear trend0.010.340.300.670.010.30
P for gender interactionb0.010.380.03
Tofu product density
P for linear trend0.020.340.300.420.020.18
P for gender interactionb0.010.410.01
Urinary isoflavonoids (nmol*1000/mg*10)
 1 ≤2.9323/1513713141164334120107
 2/3 >2.9340/3816111737944160152100
P for linear trend0.060.480.070.600.0040.46
P for gender interactionb0.100.660.01
  • a Adjusted for age, BMI, and physical activity.

  • b Based on regression models containing soy intake indicator, gender, and a gender*soy indicator interaction term.