Reductions in BMI were greater in the LGI group than in the LF group , whereas in the HGI group , reductions in BMI did not differ significantly from those in the other 2 groups ( LGI : -2.45 0.27 ; HGI : -2.30 0.27 ; LF : -1.43 0.27 ; F = 4.616 , P = 0.012 ; pairwise comparisons : LGI compared with HGI , P = 1.000 ; LGI compared with LF , P = 0.016 ; HGI compared with LF , P = 0.061 ) .