The FUF group had fewer episodes and shorter duration of ARI ( mean days [ SE ] ; control = 4.3 [ 0.2 ] ; FUF = 3.5 [ 0.2 ] ; P = .007 ) , less antibiotic use ( n [ % ] ; control = 21 [ 14 % ] ; FUF = 8 [ 5 % ] ; P = .01 ) , and fewer missed days of day care due to illness .