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Table 5 Time trends of aggregated health risk behaviors of subjects from grade 4 to grade 6

From: Changes in health risk behaviors of elementary school students in northern Taiwan from 2001 to 2003: results from the child and adolescent behaviors in long-term evolution study

 

Unhealthy habits

Aggressive behavior

Substance using behavior

 

Model 1

Model 2

Model 1

Model 2

Model 1

Model 2

Fixed effects

Coef.

SD.

Coef.

SD.

Coef.

SD.

Coef.

SD.

Coef.

SD.

Coef.

SD.

   Intercept

10.680*

0.113

10.676*

0.113

5.321*

0.069

5.321*

0.069

3.097*

0.017

3.097*

0.017

   Time

0.119*

0.036

0.119*

0.036

0.104*

0.022

0.104*

0.022

-0.027*

0.006

-0.027*

0.006

   Boy vs. Girl

  

0.758*

0.102

  

0.419*

0.062

  

0.072*

0.014

   Hsinchu vs. Taipei

  

0.287*

0.102

  

0.194*

0.062

  

0.037*

0.014

Random effects

Var.

SD.

Var.

SD.

Var.

SD.

Var.

SD.

Var.

SD.

Var.

SD.

   Individual variability

3.156*

0.161

3.156*

0.161

1.135*

0.059

1.135*

0.059

0.039*

0.003

0.039*

0.003

   Time variability

4.709*

0.110

4.709*

0.110

1.789*

0.042

1.789*

0.042

0.146*

0.003

0.146*

0.003

  1. * p: < 0.05
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BMC Public Health

ISSN: 1471-2458

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