Male

2.13

<.001

3.03

<.001

2.19

.005

1.09

.228

[1.74, 2.61]

[2.38, 3.85]

[1.27, 3.89]

[0.95, 1.25]

Age group^d

Preschool

0.48

<.001

0.19

<.001

0.28

.022

0.60

<.001

[0.34, 0.66]

[0.11, 0.31]

[0.07, 0.82]

[0.47, 0.77]

Junior high school

0.97

.770

1.08

.518

1.00

.990

1.24

.017

[0.77, 1.22]

[0.86, 1.36]

[0.54, 1.85]

[1.04, 1.48]

High school

0.92

.459

0.50

<.001

1.22

.522

1.65

<.001

[0.71, 1.16]

[0.37, 0.68]

[0.67, 2.23]

[1.39, 1.96]