Treatment Outcomes in Patients with Internet Addiction: A Clinical Pilot Study on the Effects of a Cognitive-Behavioral Therapy Program

Table 3

Changes in primary and secondary endpoints in the completers.

Endpoint variable	Prescore completers	Postscore completers	Significance
Symptoms of IA (AICA-S)	12.1 (4.21)	3.5 (3.71)	𝑡=7.38,𝑃=.001;𝑑𝑧=1.45
Hours spent online	7.6 (3.95)	2.6 (2.26)	𝑡=6.54,𝑃=.001;𝑑𝑧=1.31
Problems (total)	3.7 (1.28)	1.5 (1.73)	𝑡=5.33;𝑃=.001;𝑑𝑧=1.04
Problems in school/job	1.2 (1.14)	0.3 (0.45)	𝑡=4.91,𝑃=.000;𝑑𝑧=.96
Financial problems	0.1 (0.33)	0.1 (0.27)	Ns
Family conflicts	0.8 (0.40)	0.4 (0.50)	𝑡=4.28,𝑃=.000;𝑑𝑧=.84
Health problems	0.6 (0.50)	0.3 (0.45)	𝑡=3.14,𝑃=.004;𝑑𝑧=.62
Denial of recreational activities	0.8 (0.40)	0.4 (0.49)	𝑡=4.05,𝑃=.001;𝑑𝑧=.79
Conflicts with friends	0.7 (0.45)	0.2 (0.40)	𝑡=4.40,𝑃=.001;𝑑𝑧=1.06
Self-efficacy expectancy	25.7 (4.24)	29.1 (4.38)	𝑡=5.42,𝑃=.001;𝑑𝑧=.79
SCL: GSI	0.7 (0.43)	0.3 (0.29)	𝑡=4.87,𝑃=.001;𝑑𝑧=.90
SCL: somatization	0.4 (0.38)	0.3 (0.30)	Ns
SCL: obsessive-compulsive	1.1 (0.70)	0.5 (0.49)	𝑡=4.81,𝑃=.001;𝑑𝑧=.91
SCL: social insecurity	0.8 (0.57)	0.4 (0.40)	𝑡=5.54,𝑃=.001;𝑑𝑧=.82
SCL: depression	1.1 (0.75)	0.5 (0.52)	𝑡=4.78,𝑃=.001;𝑑𝑧=.94
SCL: anxiousness	0.5 (0.44)	0.3 (0.25)	𝑡=2.61,𝑃=.015;𝑑𝑧=.51
SCL: aggressiveness	0.5 (0.54)	0.2 (0.33)	𝑡=2.71,𝑃=.012;𝑑𝑧=.53
SCL: phobic anxiety	0.3 (0.31)	0.1 (0.24)	𝑡=3.07,𝑃=.005;𝑑𝑧=.60
SCL: paranoid ideation	0.5 (0.49)	0.3 (0.39)	Ns
SCL: psychoticism	0.5 (0.46)	0.2 (0.24)	𝑡=4.52,𝑃=.001;𝑑𝑧=.67

𝑛=26.