Eisses et al. Adjusted mean number of febrile episodes per year (SD)

AgeBreast-fed groupFormula-fed groupp
n = 300n = 416
0–12 months (intention to treat)2.20 (2.30)1.77 (1.99)<0.05
n = 243n = 300
0–12 months (per protocol)2.22 (2.02)1.78 (1.67)<0.05
0–6 months (per protocol)1.31 (2.13)1.18 (1.79)<0.05