Table 3 

Body Weight, BMI. 

Group 
Time 0 
4 weeks 
8 weeks 
%Δ0–4 wks 
%Δ0–8 wks 


OP 

Weight (kg) 
85.0 
1.14 ± 0.96 
1.15 ± 1.30 
1.3* 
1.4* 
BMI (kg/m^{2}) 
31.1 
0.42 ± 0.59 
0.42 ± 0.32 
1.3* 
1.4* 
OT 

Weight (kg) 
81.7 
2.49 ± 1.09 
4.19 ± 1.24 
3.1* 
5.1* 
BMI (kg/m^{2}) 
31.7 
0.94 ± 0.11 
1.59 ± 0.11 
3.0* 
5.1* 
NP 

Weight (kg) 
67.1 
0.27 ± 0.60 
0.76 ± 0.34 
0.4 
1.1* 
BMI (kg/m^{2}) 
24.0 
0.10 ± 0.05 
0.28 ± 0.04 
0.4 
1.2* 
NT 

Weight (kg) 
67.0 
0.51 ± 1.08 
1.18 ± 1.29 
0.8 
1.8* 
BMI (kg/m^{2}) 
24.8 
0.18 ± 0.05 
0.42 ± 0.08 
0.7 
1.7* 


*Significant P values < 0.05. OP = overweight placebo, OT = overweight treatment, NP = normal weight placebo and NT = normal weight treatment. Values at the start of the study (Time 0) listed in the first column are means of data from individuals. Mean changes after 4 weeks and 8 weeks are listed in the second and third columns as ± Standard Deviation. A negative value indicated a decrease in value and a positive number represents an increase in value. %Δ values are percent mean change in value between time 0 and either 4 or 8 weeks. Values* are significant Pvalue comparisons (< 0.05) between initial values at Time 0 and either 4 weeks or 8 weeks. 

Oben et al. Nutrition Journal 2008 7:16 doi:10.1186/14752891716 