Table 4.
Comparison between the IGD and non-IGD groups according to cut-off point of 5/9 in the IGDT-10
| 4th–6th grade (N = 3,573) | Junior high school (N = 3,297) | Senior high school (N = 1,240) | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IGD (N = 137) | Non-IGD (N = 3,436) | IGD (N = 95) | Non-IGD (N = 3,202) | IGD (N = 23) | Non-IGD (N = 1,217) | ||||||||||||||||
| n | % | n | % | χ2 | p | OR | n | % | n | % | χ2 | p | OR | n | % | n | % | χ2 | p | OR | |
| Gender | 31.151 | <.001 | 11.436 | <.001 | 7.568 | .006 | |||||||||||||||
| Male | 113 | 82.5 | 2,014 | 58.6 | 3.324 | 79 | 83.2 | 2,133 | 66.6 | 2.475 | 21 | 91.3 | 773 | 63.5 | 6.031 | ||||||
| Female | 24 | 17.5 | 1,422 | 41.4 | 16 | 16.8 | 1,069 | 33.4 | 2 | 8.7 | 444 | 36.5 | |||||||||
| Spend money on Internet gaming | 55 | 40.1 | 448 | 13.0 | 80.035 | <.001 | 4.474 | 60 | 63.2 | 865 | 27.0 | 59.713 | <.001 | 4.632 | 18 | 78.3 | 481 | 39.5 | 14.086 | <.001 | 5.509 |
| Myopia | 95 | 69.3 | 2,212 | 64.4 | 1.420 | .233 | 1.252 | 43 | 45.3 | 1,544 | 48.2 | 0.323 | .570 | 0.888 | 9 | 39.1 | 408 | 33.5 | 0.318 | .573 | 1.275 |
| M | SD | M | SD | t | p | d | M | SD | M | SD | t | p | d | M | SD | M | SD | t | p | d | |
| Time spent on Internet gaming (hours per week) | 39.09 | 17.01 | 22.43 | 12.29 | 11.35 | <.001 | 1.33 | 42.76 | 14.87 | 25.50 | 12.33 | 11.20 | <.001 | 1.39 | 40.35 | 15.09 | 25.28 | 11.88 | 4.76 | <.001 | 1.26 |
| BMI | 20.35 | 5.75 | 19.14 | 4.57 | 2.43 | .016 | 0.26 | 20.91 | 5.74 | 20.07 | 4.37 | 1.41 | .163 | 0.19 | 22.52 | 6.03 | 21.28 | 4.47 | 1.32 | .189 | 0.28 |
Note. IGD: Internet gaming disorder; OR: odds ratio; Ten-Item Internet Gaming Disorder Test; SD: standard deviation; d: Cohen’s d; BMI: body mass index; Sensitivity: indicated the proportion of true positive rates; Specificity: indicated the proportion of the true negative rates.