Comparison of serum leptin values in breastfed and formula-fed infants younger than 6 months of age (<i>n</i> = 202).

<p>The median (IQR) leptin concentration was 3.37 (3.56) ng/ml in the exclusively BF infants (<i>n</i> = 121) and 2.2 (3.75) ng/ml in the exclusively FF infants (<i>n</i> = 81); the difference between the two groups was statistically significant (* <i>p</i><0.05). (Source: self-elaborated).