Table 2. Primary outcome comparisons between and within each group (PP population)

Variable	Observed value			Changed from baseline
	CG (n = 46)	EG (n = 47)	p**	CG (n = 46)	p*	EG (n = 47)	p**	p**
Height(cm)
visit 2	123.86 ± 9.10	125.97 ± 10.91	0.314
visit 3	124.75 ± 9.02	127.61 ± 11.36	0.182	0.89 ± 0.70	< 0.001	1.64 ± 1.35	< 0.001	0.001	0.002	0.004	0.001
visit 4	125.47 ± 9.06	128.36 ± 11.35	0.180	1.61 ± 0.64	< 0.001	2.38 ± 1.40	< 0.001	0.001	0.008	0.003	0.001
visit 5	126.07 ± 8.97	129.03 ± 11.52	0.172	2.21 ± 0.64	< 0.001	3.05 ± 1.56	< 0.001	0.001	0.010	0.004	0.001
visit 6	126.80 ± 9.18	130.08 ± 11.56	0.135	2.94 ± 0.73	< 0.001	4.10 ± 1.57	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

p-values were derived from paired t-test (comparing within each group).
p-values were compared between groups (The values are from left to right: 1st, independent t-test; 2nd, ANCOVA [covariate: sex]; 3rd, ANCOVA [covariate: weight]; 4th, ANCOVA [covariate: change of caloric intake]).
PP, per-protocol; CG, control group; EG, experimental group.