Table 3.

Regression Analyses for Relationship Between Circulating Factors and GWG as a Continuous Variable, Adjusting for Pre-Pregnancy BMI.

	Estimated Mean Difference	95% CI for Mean Difference
Leptin (ng/mL)	1.88	0.81, 2.95
Prolactin (ng/mL)	−3.11	−8.28, 2.07
Estradiol (pmol/L)	−983.6	−3134.3, 1167.0
Progesterone (nmol/L)	−0.48	−14.29, 13.32
Insulin (IU/mL)	0.40	−0.63, 1.44
IGF-1 (ng/mL)	0.02	−1.75, 1.78
IGFBP-3 (ng/mL)	−61.1	−190.6, 68.3

Note: Values are expressed as change in circulating factor for 1 kg increase in GWG.