No differences between randomized groups were seen in mean ( 95 % C.I. ) BMI Z-score ( intervention group 0.06 [ -0.17 ; 0.29 ] vs. controls -0.18 [ -0.43 ; 0.05 ] ) , in the percentage of overweight or obese children ( 10.9 % vs. 6.7 % ) , in other anthropometrics , or in body composition values by DEXA .