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Table 1 Description of the assessed variables at baseline by type of secondary school

From: Cross-sectional and longitudinal associations of screen time and physical activity with school performance at different types of secondary school

 

Total

Highest secondary school

Lower secondary schools

Possible range

 

(n = 850)

(n = 574)

(n = 276)

 
 

M (SD)

M (SD)

M (SD)

 

Consumption of screen-based media (hours/day)

 TV/video

1.66 (1.29)

1.27 (1.13)

2.08 (1.49)

0-5

 Game console

0.71 (1.14)

0.54 (.91)

1.05 (1.46)

0-5

 PC/internet

1.50 (1.41)

1.44 (1.34)

1.64 (1.54)

0-5

 Mobile phone

1.42 (1.65)

1.33 (1.60)

1.61 (1.75)

0-5

 Total screen time

5.31 (3.66)

4.79 (3.29)

6.38 (4.15)

0-20

Physical activity (training sessions/week)

 PA organized

1.76 (1.73)

1.91 (1.74)

1.43 (1.67)

0-6

 PA non-organized

2.17 (2.02)

2.18 (1.99)

2.15 (2.08)

0-6

 Total physical activity

3.93 (2.83)

4.10 (2.81)

3.58 (2.88)

0-12

School grades

 Mathematics

2.64 (0.85)

2.53 (0.85)

2.89 (0.80)

1-4

 German

2.34 (0.76)

2.20 (0.74)

2.61 (0.72)

1-4

 Physical Education

2.16 (0.86)

1.98 (0.78)

2.53 (0.90)

1-4

  1. Better school achievement is represented by lower school grades (following the German grading system). PA physical activity