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Smartphone use by gender and time (t1 and t2).
| Smartphone Use | |||||||
|---|---|---|---|---|---|---|---|
| <1 h/Day | 1–2 h/Day | 3–4 h/Day | 5–6 h/Day | 7–8 h/Day | >8 h/Day | ||
| Boys | t1 | 0.8% (1) | 11.9% (14) | 31.4% (37) | 30.5% (36) | 15.3% (18) | 10.2% (12) |
| t2 | 0.8% (1) | 19.7% (24) | 47.5% (58) | 16.4% (20) | 7.4% (9) | 8.2% (10) | |
| Girls | t1 | 1% (5) | 10.2% (49) | 32.8% (158) | 25.2% (121) | 16.6% (80) | 14.1% (68) |
| t2 | 1.5% (7) | 13.4% (64) | 38.8% (185) | 26.4% (126) | 11.5 (55) | 8.4% (40) | |
