Investigation on Internet addiction disorder in adolescents in Anhui, People’s Republic of China

Figures & data

Table 1 Main characteristics of young adolescents included in this study

Variable	n	%
Sex
Male	2,703	51.50
Female	2,546	48.50
Location
Rural	2,850	54.30
Urban	2,399	45.70
Education grade
7	806	15.36
8	1,221	23.26
9	1,443	27.49
10	1,010	19.24
11	361	6.88
12	408	7.77
Only-child
Yes	2,468	47.02
No	2,781	52.98
Family types
Parents	4,780	91.06
Mother only	148	2.82
Father only	85	1.62
Other	236	4.50

Table 2 The detection rate of IAD in young adolescents using different variables (%)

Variable	IAD	Non-IAD	Missing	χ^2	P-value
Sex				98.909	0.000
Male	333 (12.3)	2,019 (74.7)	351 (13.0)
Female	126 (4.9)	1,981 (77.8)	439 (17.2)
Location				119.484	0.000
Rural	235 (8.2)	2,045 (71.8)	570 (20.0)
Urban	224 (9.3)	1,955 (81.5)	220 (9.2)
Education grade				288.994	0.000
7	50 (6.2)	532 (66.0)	224 (27.8)
8	92 (7.5)	881 (72.2)	248 (20.3)
9	127 (8.8)	1,150 (79.7)	166 (11.5)
10	68 (6.7)	808 (80.0)	134 (13.3)
11	49 (13.6)	304 (84.2)	8 (2.2)
12	73 (17.9)	325 (79.7)	10 (2.5)
Only-child				54.055	0.000
Yes	234 (9.5)	1,957 (79.3)	277 (11.2)
No	225 (8.1)	2,043 (73.5)	513 (18.4)
Family types				17.379	0.000
Parents	422 (8.8)	3,649 (76.3)	709 (14.8)
Mother only	12 (8.1)	118 (79.7)	18 (12.2)
Father only	10 (11.8)	67 (78.8)	8 (9.4)
Other	15 (6.4)	166 (70.3)	55 (23.3)

Abbreviation: IAD, Internet addiction disorder.