Do Lactation-Induced Changes in Ghrelin, Glucagon-Like Peptide-1, and Peptide YY Influence Appetite and Body Weight Regulation during the First Postpartum Year?

Table 3

Association between body weight and body composition and fasting hormone concentrations in 24 postpartum lactating and 20 never-pregnant women.

Hormone	Weight (kg)	BMI (kg/m^2)	Fat mass (kg)	Lean mass (kg)	Body fat (%)
Leptin	0.65	0.82	0.76	0.11	0.71
Insulin	0.31	0.35	0.37	0.03	0.34
Ghrelin				0.04	−0.31
Ghrelin	0.11	0.05	0.13	0.03	0.10
PYY
GLP-1

Data are correlation coefficients () between body weight and markers of body composition and fasting hormone concentrations in blood; < 0.05; ghrelin, acylated (active) ghrelin.
Note: adjustment for group does not significantly alter correlation coefficients.