Table 3. Comparison of non-PIUs and PIUs over history of Internet usage.
| Variables | N of non-addicted (%) | N of addicted (%) | Total (%) |
|
| (n = 10,931) | (n = 1,515) | (N = 12,446) | ||
| Average numbers of hours online/Day | 679.483*** | |||
| <2 h/D | 7,667(70.1) | 657(43.4) | 8,324(66.9) | |
| 2–4 h/D | 2,379(21.8) | 455(30.0) | 2,834(22.8) | |
| 4–6 h/D | 509(4.7) | 169(11.2) | 678(5.4) | |
| 6–8 h/D | 151(1.4) | 84(5.5) | 235(1.9) | |
| >8 h/D | 225(2.1) | 150(9.9) | 375(3.0) | |
| Frequency of weekly Internet use | 603.332*** | |||
| <2 times/W | 5,774(52.8) | 425(28.1) | 6,199(49.8) | |
| 3–4 times/W | 3,290(30.1) | 498(32.9) | 3,788(30.4) | |
| 5–6 times/W | 885(8.1) | 196(12.9) | 1,081(8.7) | |
| 7–8 times/W | 483(4.4) | 137(9.0) | 620(5.0) | |
| >9 times/W | 499(4.6) | 259(17.1) | 758(6.1) | |
| Online sites | 92.609*** | |||
| Internet cafe | 1,232(11.3) | 256(16.9) | 1,488(12.0) | |
| Home | 7,932(72.6) | 1,122(74.1) | 9,054(72.7) | |
| School | 117(1.1) | 4(0.3) | 121(1.0) | |
| Relative/friends' home | 469(4.3) | 16(1.1) | 485(3.9) | |
| Mobile | 1,092(10.0) | 106(7.0) | 1,198(9.6) | |
| others | 53(0.5) | 8(0.5) | 61(0.5) | |
| Entertainment | 106.544*** | |||
| Yes | 7,410(67.8) | 1,227(81.0) | 8,637(69.4) | |
| No | 3,412(31.2) | 279(18.4) | 3,691(29.7) | |
| Information gathering | 437.372*** | |||
| Yes | 5,674(51.9) | 353(23.3) | 6,027(48.4) | |
| No | 5,095(46.6) | 1,133(74.8) | 6,228(50.0) | |
| Making friends | 59.578*** | |||
| Yes | 1,649(15.1) | 350(23.1) | 1,999(16.1) | |
| No | 8,951(81.9) | 1,140(75.2) | 10,091(81.1) | |
| Communicating with friends | 112.738*** | |||
| Yes | 7051(64.5) | 764(50.4) | 7815(62.8) | |
| No | 3756(34.4) | 730(48.2) | 4,486(36.0) | |
| Others | 1.034 | |||
| Yes | 522(4.8) | 64(4.2) | 586(4.7) | |
| No | 10,064(92.1 | 1,416(93.5) | 11,480(92.9) |
*p<0.05,
**p<0.01,
***p<0.001.
Missing date exist in some categories.