Table 4 Prevalence of perceived problems and the participants’ distribution on the three indexes

Computer gaming, % strongly + partly agree:

%

%

%

%

%

%

%

%

I think I spend way too much time playing computer games

13.5

19.8

12.6

6.0

25.9

24.6

24.9

28.9

I get in bad mood when I cannot spend time on computer games

5.6

6.7

5.3

4.6

11.4

11.5

10.8

12.2

My parents tell me, I spend way too much time on computer gaming

11.3

14.9

11.6

6.0

32.2

26.5

34.1

36.9

Index for problems related to computer gaming

0

79.1

71.2

79.9

88.7

56.4

59.3

55.8

53.3

1

13.2

18.8

12.3

6.7

21.6

22.1

22.8

19.5

2

6.1

7.5

6.3

3.9

18.1

15.3

17.2

23.0

3

1.7

2.6

1.5

0.7

3.9

3.3

4.2

4.2

Console-gaming, % strongly + partly agree:

I think I spend way too much time on console-gaming

3.7

6.9

2.3

1.4

10.0

11.2

9.8

8.7

I get in bad mood when I cannot spend time on console-gaming

2.4

3.3

2.0

1.8

6.5

7.4

5.0

7.3

My parents tell me, I spend way too much time on console-gaming

2.7

4.9

1.8

3.9

11.4

12.8

10.9

10.1

Index for problems related to console-gaming

0

94.4

90.5

96.0

97.5

82.3

80.9

82.3

84.0

1

3.5

5.9

2.5

1.4

10.0

9.8

11.4

8.4

2

1.0

1.5

1.0

0.4

5.4

6.3

4.8

5.2

3

1.1

2.1

0.5

0.7

2.3

3.0

1.6

2.4

Internet use, % strongly + partly agree:

I think I spend way too much time on internet communication and surfing

18.2

11.8

20.4

24.0

13.2

12.6

11.9

15.7

I get in bad mood when I cannot spend time on internet communication and surfing

13.8

7.2

16.4

19.1

8.3

4.9

9.3

11.5

My parents tell me, that I spend way too much time on internet communication and surfing

15.3

8.2

19.4

19.4

14.4

11.2

13.8

19.2

Index for problems related to Internet use

0

70.1

82.5

64.7

60.4

76.3

81.2

76.5

70.0

1

16.6

9.5

19.7

21.9

13.7

11.2

14.6

15.7

2

9.4

6.2

10.3

12.4

7.8

5.5

6.6

12.2

3

4.0

1.8

5.3

5.3

2.2

2.2

2.4

2.1