Table 7

Mean BMI of households of residents over 4 years of age (in June 2003) before and the other (in July 2004) after food


Group
N
Mean
Std. Deviation
Std. Error Mean

BMI
2003
434
22.02
6.39
.31

2004
290
19.65
4.32
.25

Student t = 5.5, df = 722, p < 0.0

Bowie et al. Nutrition Journal 2005 4:12   doi:10.1186/1475-2891-4-12