Table 1.
General characteristics of participants, according to content type of smartphone use.
| General Characteristics | Study (n = 4202, 10.7%) |
SNS (n = 10,192, 25.9%) |
Game (n = 7282, 18.5%) |
Entertainment (n = 17,642, 44.9%) |
p | |
|---|---|---|---|---|---|---|
| Age (years) | Mean (SD) | 15.58 ± 1.78 | 14.92 ± 1.66 | 14.31 ± 1.71 | 15.07 ± 1.76 | < 0.001 |
| Sex (%) | < 0.001 | |||||
| Boys | 62.9 | 28.9 | 87.9 | 50.8 | ||
| Girls | 37.1 | 71.1 | 12.1 | 49.2 | ||
| Region (%) | < 0.001 | |||||
| Rural Area | 7.3 | 7.2 | 8.5 | 7.8 | ||
| Small City | 45.6 | 47.3 | 50.3 | 47.3 | ||
| Large City | 47.1 | 45.5 | 41.2 | 44.9 | ||
| Family Economic Status (%) | < 0.001 | |||||
| High | 47.2 | 39.0 | 40.4 | 37.0 | ||
| Middle | 40.3 | 46.8 | 46.2 | 47.1 | ||
| Low | 12.5 | 14.2 | 13.4 | 15.9 | ||
| Sleep Hours (%) | < 0.001 | |||||
| <6hrs | 33.2 | 38.6 | 62.4 | 42.9 | ||
| ≥6hrs | 66.8 | 61.4 | 37.6 | 57.1 | ||
| Physical Activity (%) | < 0.001 | |||||
| No | 34.2 | 38.9 | 32.0 | 36.5 | ||
| Yes | 65.8 | 61.1 | 68.0 | 64.0 |
SNS: Social-Networking Services.