Table 4

Partial Spearman correlation (r) between serum IGF-I, IGFBP-3, and molar ratio (IGF-I:IGFBP-3) and serum markers adjusting for age, BMI, gender, and physical activity, Singapore Chinese Health Study

Serum componentnIGF-I ng/mlIGFBP-3 ng/mlMolar ratio (IGF-I:IGFBP-3)*1000
r(p)r(p)r(p)
Vitamin B63750.075(0.15)0.169(0.001)−0.010(0.86)
Vitamin B12375−0.028(0.59)0.079(0.13)−0.09(0.10)
Folate3750.011(0.83)0.074(0.15)0.018(0.73)
Homocysteine3750.009(0.86)−0.016(0.76)0.002(0.97)
Cholesterola1280.250(0.005)0.240(0.007)0.172(0.06)
HDLa128−0.088(0.33)−0.047(0.60)−0.062(0.49)
LDLa1280.209(0.02)0.221(0.01)0.110(0.23)
Triacylglycerola1280.384(<0.0001)0.332(0.0002)0.314(0.0004)
Total cholesterol/HDLa1280.241(0.007)0.219(0.02)0.156(0.08)
  • a Restricted to serum samples collected after at least 12 h of fasting.