Table 3

Daily hours spent on screen-based media by symptom status.

Daily hours of screen based activity

Computer use

Computer games

Television viewing

Physical symptom status

M

95% CI

M

95% CI

M

95% CI

Boys

Backache

Less than weekly

1.60

(1.56 to 1.63)

1.99

(1.95 to 2.03)

2.41

(2.38 to 2.44)

Weekly

2.13

(2.05 to 2.21)

2.40

(2.31 to 2.49)

2.72

(2.65 to 2.79)

Headache

Less than weekly

1.61

(1.57 to 1.65)

1.99

(1.95 to 2.04)

2.42

(2.39 to 2.46)

Weekly

1.95

(1.88 to 2.02)

2.29

(2.21 to 2.36)

2.60

(2.54 to 2.66)

Girls

Backache

Less than weekly

1.54

(1.50 to 1.57)

0.66

(0.63 to 0.68)

2.22

(2.19 to 2.25)

Weekly

2.03

(1.96 to 2.09)

0.73

(0.69 to 0.78)

2.52

(2.46 to 2.58)

Headache

Less than weekly

1.48

(1.44 to 1.52)

0.66

(0.63 to 0.68)

2.21

(2.17 to 2.24)

Weekly

1.94

(1.89 to 1.99)

0.70

(0.66 to 0.74)

2.42

(2.38 to 2.47)

M-Mean; CI-confidence interval

Torsheim et al. BMC Public Health 2010 10:324   doi:10.1186/1471-2458-10-324