Table 1 Demographic characteristics of preschool children¹

Race-ethnicity

   Non-Hispanic white

6

5

1

-

   Non-Hispanic black

8

6

2

-

   Mexican American/Hispanic

3

3

0

-

   Others

6

2

4

-

Age, y

4.6 ± 0.7

4.8 ± 0.7

4.1 ± 0.4

0.033

Weight, kg

21.1 ± 3.3

21.2 ± 3.5

21.0 ± 3.2

0.922

Height, cm

114 ± 5.9

115 ± 6.3

113 ± 5.2

0.820

Body mass index³

16.1 ± 1.3

16.0 ± 1.3

16.3 ± 1.4

0.769