A randomized controlled trial to investigate the impact of a low glycemic index (GI) diet on body mass index in obese adolescents

Table 4 Comparison of the cardiometabolic risk outcome variables across 0 and 6 months between the study subjects in the control and low glycemic index, GI, group after adjustment for age and sex

	Regression coefficients of the mixed effects models
	Group		Time		Group*Time
Obesity indices	B (95% CI)	p	B (95% CI)	p	B (95% CI)	p
Body weight (kg)	5.30 (0.53, 10.08)	0.029	-0.03 (-1.25, 1.19)	0.968	-2.56 (-4.75, -0.38)	0.022
Body mass index (kg/m²)	1.41 (-0.05, 2.86)	0.058	-0.17 (-0.59, 0.24)	0.414	-0.98 (-1.81, -0.14)	0.023
Waist circumference (cm)	4.55 (0.95, 8.16)	0.013	-1.87 (-2.95, -0.79)	0.001	-3.57 (-5.70, -1.44)	0.001
Body Fat (%)	2.52 (0.09, 4.95)	0.042	-0.09 (-1.28, 1.10)	0.882	-1.49 (-3.98, 1.00)	0.241
Trunk fat (%)	2.16 (-0.20, 4.51)	0.073	-0.66 (-2.12, 0.81)	0.379	-0.81 (-2.75, 1.13)	0.411
Visceral fat (%)^†	0.11 (-0.03, 0.24)	0.122	-0.03 (-0.11, 0.06)	0.553	-0.04 (-0.15, 0.08)	0.547

Those outcomes marked with ^† were log-transformed before being subjected to analysis.
Only the model estimates of the regression coefficient (B) of the dummy variables for the group [Group: 0 = Control (reference); 1 = Low GI], time (Month 6 and month 0 as reference), time and group interaction terms (Group*Time) were shown for the mixed effects models with adjustment for age and sex.

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