Table 3.
Impacts of personal factors on the symptom development of AIA by linear regression analysesa,b,c,d
| Risk factors | Total score (Adjusted R2=0.31) |
Seven subscales |
||||||
|---|---|---|---|---|---|---|---|---|
| Lack-of- control | Socialization | Planning | Negative life consequences | Time consuming | Tolerance | Withdrawal | ||
|
Gender | ||||||||
| Girls (ref.) |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| Boys |
3.9 (0.8)*** |
0.2(0.1) |
0.6(0.2)*** |
0.0(0.1) |
0.3 (0.1)* |
1.0(0.1)*** |
0.5 (0.1)*** |
1.5(0.3)*** |
|
Grade | ||||||||
| Junior high school students (ref.) |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| Senior high school students |
8.2 (0.9)*** |
0.7(0.1)*** |
2.5(2.3) |
1.7(1.6) |
1.7 (0.2)*** |
2.4(1.6) |
1.0 (0.1)*** |
2.0(0.3)*** |
|
Monthly money spending (RMB/month) | ||||||||
| <100 (ref.) |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| ≥300 |
6.1(1.2)*** |
0.5(0.2)** |
1.0(0.3)*** |
0.9(0.2)** |
0.8(0.2)*** |
1.0(0.2)*** |
0.4(0.2)*** |
1.7(0.5)** |
| 100~299 |
6.4 (1.0)*** |
0.5(0.1)*** |
0.9(0.2)*** |
0.7(0.1)*** |
0.9 (0.2)*** |
0.9(0.1)*** |
0.5(0.1)*** |
1.9(0.4)*** |
|
Academic achievements | ||||||||
| Very good (ref.) |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| Relatively & very bad |
12.6(2.0)*** |
1.3(0.3)*** |
4.0(0.4)*** |
1.6(0.3)*** |
1.3(0.3)*** |
0.2(0.3) |
1.4(0.3)*** |
2.7(0.7)*** |
| General |
4.8(1.6)** |
0.8(0.2)*** |
1.8(0.3)*** |
0.8(0.2)*** |
0.4(0.3) |
0.0(0.2) |
0.5(0.2)* |
0.9(0.5) |
| Relatively good |
−1.3(1.6) |
0.1(0.2) |
0.4(0.3) |
0.2(0.2) |
−0.4(0.3) |
−0.4(0.2) |
−0.1(0.2) |
−1.1(0.6) |
|
Purposes to use internet | ||||||||
| Academic learning (ref.) |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| Games |
20.7(1.4)*** |
2.0(0.2)*** |
3.6(0.3)*** |
2.6(0.2)*** |
3.0(0.3)*** |
2.0(0.2)*** |
1.5(0.2)*** |
6.5(0.5)*** |
| Real-time chatting |
13.6(1.5)*** |
1.4(0.2)*** |
2.2(0.3)*** |
1.8(0.2)*** |
1.9(0.3)*** |
1.4(0.2)*** |
1.0 (0.2)*** |
4.3(0.6)*** |
| Browsing news or e-mails |
4.0 (1.4)** |
0.4(0.2) |
0.4(0.3) |
0.7 (0.2)*** |
0.7 (0.2)** |
0.5 (0.2)* |
0.1(0.2) |
1.4 (0.5)** |
|
Total hours spent on internet for a whole week (hours/week) | ||||||||
| <7 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| >28 |
19.9(1.5)*** |
0.7(0.2)*** |
3.4(0.3)*** |
2.4(0.2)*** |
2.2(0.3)*** |
3.2(0.2)*** |
3.3(0.2)*** |
5.6(0.6)*** |
| 21 ~28 |
17.1(1.8)*** |
0.9(0.3)*** |
2.6(0.4)*** |
2.1(0.3)*** |
1.9(0.3)*** |
2.1(0.3)*** |
2.7(0.2)*** |
5.5(0.7)*** |
| 14 ~21 |
14.5(1.4)*** |
0.8(0.2)*** |
2.6(0.3)*** |
1.8(0.2)*** |
1.6(0.3)*** |
1.7(0.2)*** |
2.4(0.2)*** |
4.0(0.5)*** |
| 7~14 |
10.2(1.0)*** |
0.7(0.1)*** |
1.7(0.2)*** |
1.2(0.2)*** |
1.2(0.2)*** |
1.2(0.2)*** |
1.5(0.1)*** |
2.8(0.4)*** |
|
School type | ||||||||
| Junior high school |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| Vocational senior high school |
7.1(11.4) |
2.2(1.6) |
2.1(0.2)*** |
1.7(0.2)*** |
0.6(2.0) |
2.2(1.6) |
0.2(1.4) |
3.9(3.9) |
| Ordinary senior high school |
1.9(11.3) |
1.4(1.5) |
1.2(0.2)*** |
1.5(0.2)*** |
0.2(1.9) |
2.8(1.6) |
0.4(1.4) |
3.0(3.9) |
| Key senior high school | 2.9(11.3) | 1.6(1.6) | 0.8(0.3)** | 0.7(0.2)*** | 0.2(1.9) | 2.6(1.6) | 0.3(1.4) | 3.6(3.9) |
a Results are reported as Coefficient Estimate (SE).
b AIA: adolescent internet addiction.
c *p-values<0.05; **p-values<0.01; ***p values<0.001.
d Adolescent age, gender, grade, school types, adolescent academic achievement, adolescent monthly spending levels, internet-use time, and the main purposes and places of adolescent internet use were adjusted in the models.