Table 1.

Anthropometrical data for total study group of children who participated in the biological part of the study^a

Group/parameter	Mean	SD	Q25	MED	Q75
N (gender, male%)	310 (47.4%)
Age	6.6	0.6	6.3	6.6	6.9
BWT	23.8	3.3	22.0	23.4	24.5
Height	1.22	0.07	1.18	1.22	1.26
BMI	16.0	2.2	14.4	15.7	17.2

^aParameters for children from urban and non-urban groups were statistically equivalent

Parameters: mean, N number of children, SD standard deviation, Q25 and Q75 quartiles, MED median; age in years, BWT body weight (kilograms), height (meter), BMI body mass index