Table 1 Descriptives of the study sample, n = 3 274

Self-rated health

 Good health

3 159

93.6

 Less than good health

208

6.4

Social Media Disorder Scale items

 1) Can’t think of anything else

644

19.7

 2) Spend more time

482

14.7

 3) Felt bad

484

14.8

 4) Failed to spend less time

1 017

31.0

 5) Neglected other activities

267

8.2

 6) Arguments because of use

468

14.3

 7) Lied about amount

398

12.1

8) Escape from negative feelings

1 169

35.7

 9) Conflict with family because of use

323

9.9

Problematic social media use (PSMU)

 Low risk of PSMU

2 744

83.8

 Moderate risk of PSMU

436

13.3

 PSMU

94

2.9

Family support

 High support

2 599

79.4

 Moderate support

471

14.4

 Low support

204

6.2

Gender

 Boys

1 573

48.0

 Girls

1 701

52.0

Age

 11 years

837

25.6

 13 years

1 095

33.5

 15 years

1 342

41.0

Family affluence

 Lowest 20ptc

456

13.9

 Medium 60ptc

2 255

68.9

 Highest 60ptc

563

17.2