Table 2.
Comparison of PIU, psychological problems among different sex and grade group.
| Variables | PIU | Depression | Anxiety | Stress |
|---|---|---|---|---|
| Sex | ||||
| Boys | 12,157 (17.89) | 20,074 (29.54) | 23,093 (33.99) | 11,253 (16.56) |
| Girls | 10,821 (14.86) | 22,392 (30.74) | 27,547 (37.82) | 15,213 (20.89) |
| p | <0.001 | <0.001 | <0.001 | <0.001 |
| Grade | ||||
| 7th-9th | 16,127 (16.34) | 27,627 (27.99) | 32,832 (33.26) | 17,265 (17.49) |
| 10th-12th | 6,857 (16.28) | 14,839 (35.27) | 17,808 (42.32) | 9,201 (21.87) |
| p | 0.793 | <0.001 | <0.001 | <0.001 |
| 7th | 6,437 (15.61) | 10,740 (26.05) | 12,881 (31.24) | 6,532 (15.84) |
| 8th | 5,735 (16.57) | 9,815 (28.36) | 11,558 (33.40) | 6,255 (18.08) |
| 9th | 3,955 (17.29) | 7,072 (30.92) | 8,393 (36.69) | 4,478 (19.58) |
| 10th | 3,702 (16.05) | 7,995 (34.66) | 9,538 (41.35) | 4,947 (21.45) |
| 11th | 2,446 (16.99) | 5,186 (36.02) | 6,322 (43.91) | 3,263 (22.66) |
| 12th | 703 (15.24) | 1,658 (35.94) | 1948 (42.23) | 991 (21.48) |
| p | <0.001 | <0.001 | <0.001 | <0.001 |
PIU: Problematic Internet use (YDQ score ≥ 5 points).