Document Type : Review article


1 Psychosocial Injuries Research Center, Ilam University of Medical Sciences, Ilam, Iran

2 Psychosocial Injuries Research Center, Ilam University of Medical Sciences, Ilam, Iran /Associate Professor, Department of Biostatistics, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran


Background and aims: Internet is one of the new technologies whose users are increasing, and internet
addiction is defined as the excessive use of internet. One of the factors that influence internet addiction
is depression. The purpose of our study was to investigate the relationship between internet addiction
and depression in Iranian users using meta-analysis.
Methods: In our systematic review and meta-analysis, a total of 10 articles in Persian and English,
published in local and international journals between 2008 and 2014 were selected through searching
in PubMed, Scopus, Google Scholar, SID, Magiran, Medlib, and Irandoc databases, and the information
were analyzed using a method of meta-analysis (random effects model). I-square test was used to
examine heterogeneity. Data were analyzed by STATA version 11.2.
Results: There were significant correlations between internet addiction and depression (P < 0.05).
Hence the mean risk differentiating criteria were estimated to be 0.55 (95% CI: 0.14 to 0.96). Subgroup
analysis showed that the value of a university student was 0.46 (95% CI: 0.04 to 0.88) and of a high
school student was 1.12 (95% CI: 0.90 to 1.34).
Conclusion: Our results indicated positive significant correlation between internet addiction and
depression in adolescents and young adults in Iranian users. There was a positive correlation between
internet addiction and depression as one of the most important psychological disorders. This issue
requires further attention and study.


1.Young KS. Internet Addiction: The Emergence of a New Clinical Disorder. Cyberpsychol Behav. 2009;1(3):237-44. doi: 10.1089/cpb.1998.1.237. 
2.Bahri N, Sadegh-Moghadam L, Khodadost L, Mohammadzade J, Banafsheh E. Internet addiction status and its relation with students’ general health at Gonabad Medical University. modern care (Scientific Quarterly of Birjand Nursing & Midwifery Faculty). 2011;8(3):166-73. 
3.Mirzaeian B, Baezat F, Khakpour N. Internet addiction among students and its impact on mental health. Information Comunication Thecnology Educational sciences. 2010;2(1)141-60 
4.Kamran A, Farahani A, Bakhteyar K, Pirzadeh A, Fathian Z, Mirkarimi K, et al. Relationship between Internet addiction and smoking status among students of Lorestan University of Medical Sciences. Health Systems Research. 2012:8(4):635- 642. [Persian]. 
5.Ghasemzadeh L, Shahrarai M, Moradi A. The extent of internet addiction and its relation to loneliness and self esteem among tehran high school students. Journal of Education. 2007;23(98):41-68. [Persian]. 
6.Dadipoor S, Ghanbarnejad A, Safari Moradabadi A. Investigate internet addiction and effective factors among students in Hormozgan University of Medical Sciences. J Health Syst Res. 2014;10(3):469-79. 
7.Mohamady Z, Khatony A, Hydary M, Bahreini M. Internet Dependency in Students of Kermanshah University of Medical Sciences. Iran J Med Educ. 2014;13(12):1019-30. [Persian]. 
8.Malekahmadi H. Internet addiction pathology (case shahin shahr). Historical Scciology. 2010;3(2):93-116. [Persian]. 
9.Savari K. Beshlide K. Relationship between shyness and loneliness with Internet addiction. Journal of Psychology Achievements. 2014;4(2):199-212. [Persian]. 
10.Azizi Nejad, Porheydar, Ranji, GolineZhad. Study of the internet addiction amount among students and its relationship between personality elements and anxiety. J Nurs Midwifery Urmia Univ Med Sci. 2015;12(10):959-64. [Persian]. 
11.Ha JH, Yoo HJ, Cho IH, Chin B, Shin D, Kim JH. Psychiatric comorbidity assessed in Korean children and adolescents who screen positive for Internet addiction. J Clin Psychiatry. 2006;67(5):821-6. 
12.Whang LS, Lee S, Chang G. Internet over-users’ psychological profiles: a behavior sampling analysis on internet addiction. Cyberpsychol Behav. 2003;6(2):143-50. doi: 10.1089/109493103321640338. 
13.Valkenburg PM, Peter J. Preadolescents’ and adolescents’ online communication and their closeness to friends. Dev Psychol. 2007;43(2):267-77. doi: 10.1037/0012- 1649.43.2.267. 
14.Morgan C, Cotten SR. The relationship between internet activities and depressive symptoms in a sample of college freshmen. Cyberpsychol Behav. 2003;6(2):133-42. doi: 10.1089/109493103321640329. 
15.Alavi S, Maracy M, Jannatifard F, Eslami M, Haghighi M. A Survey of Relationship between Psychiatric Symptoms and Internet Addiction in Students of Isfahan Universities. Sci J Hamadan Univ Med Sci. 2010;17(2):57-65. 
16.Khoshakhlagh H, Faramarzi S. The relationship of emotional intelligence and mental disorders with internet addiction in internet users university students. Addict Health. 2012;4(3- 4):133-41. 
17.Davidson L, Shahar G, Stayner DA, Chinman MJ, Rakfeldt J, Tebes JK. Supported socialization for people with psychiatric disabilities: Lessons from a randomized controlled trial. J Community Psychol. 2004;32(4):453-77. doi: 10.1002/ jcop.20013. 
18.Young MA, Scheftner WA, Klerman GL, Andreasen NC, Hirschfeld RM. The endogenous sub-type of depression: a study of its internal construct validity. Br J Psychiatry. 1986;148:257-67. 
19.Liberati A, Altman DG, Tetzlaff J, Mulrow C, Gotzsche PC, Ioannidis JP, et al. The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate healthcare interventions: explanation and elaboration. Bmj. 2009;339:b2700. doi: 10.1136/bmj.b2700. 
20.Ahmadi J, Amiri A, Ghanizadeh A, Khademalhosseini M, Khademalhosseini Z, Gholami Z, et al. Prevalence of Addiction to the Internet, Computer Games, DVD, and Video and Its Relationship to Anxiety and Depression in a Sample of Iranian High School Students. Iran J Psychiatry Behav Sci. 2014;8(2):75-80. 
21.Mirzaian B, Baezat F, Khakpoor N. Internet addiction among students and its impact on mental health. Information and Communication Technology in Educational Sciences, 2010;2(1):141-60. 
22.Sharifi T. The relationship between individual identities and the mental health among students. Russian Open Medical Journal. 2015;4(3). 
23.Jafari N, Fatehizadeh M. Examine the relationship between Internet addiction and depression, anxiety, stress and social phobia in Isfahan University. Scientific Journal Kurdistan University Medical Sciences. 2011;17(4):1-9. [Persian]. 
24.Alavi SS, Maracy MR, Jannatifard F, Eslami M. The effect of psychiatric symptoms on the internet addiction disorder in Isfahan’s University students. J Res Med Sci. 2011;16(6):793- 800. 
25.Alavi SS, Alaghemandan H, Maracy MR, Jannatifard F, Eslami M, Ferdosi M. Impact of addiction to internet on a number of psychiatric symptoms in students of isfahan universities, iran, 2010. Int J Prev Med. 2012;3(2):122-7. 
26.Nastizai N. The Relationship between general health and internet addiction. Zahedan J Res Med Sci. 2009;11(1):57-63. 
27.Masoudnia E. Problematic Cyberspace Use and Risk of Depression Disorder Incidence among Adolescents in Yazd. Iran J Epidemiol. 2013;8(4):15-25. 
28.Kajbaf MB, Kooraki M, Saffarian Z. Comparison of psychological disorders in addicted and non-addicted students to the internet in University of Isfahan. Hormozgan Med J. 2014;18(2):156-62. 
29.Lashgarara B, Taghavi Shahri M, Maheri AB, Sadeghi R. Internet addiction and general health of dormitory students of Tehran University of Medical Sciences in 2010. Journal School Public Health Institute Public Health Research. 2012;10(1):67-76. 
30.Pirzadeh A. The Relation between General Health and Internet Addiction in Medical Students, Isfahan, Iran. Journal of Research in Health Systems. 2011;8(1):52-8. 
31.Dalbudak E, Evren C, Aldemir S, Evren B. The severity of Internet addiction risk and its relationship with the severity of borderline personality features, childhood traumas, dissociative experiences, depression and anxiety symptoms among Turkish university students. Psychiatry Res. 2014;219(3):577-82. doi: 10.1016/j.psychres.2014.02.032. 
32.Lee JY, Shin KM, Cho SM, Shin YM. Psychosocial risk factors associated with internet addiction in Korea. Psychiatry Investig. 2014;11(4):380-6. doi: 10.4306/pi.2014.11.4.380. 
33.Goel D, Subramanyam A, Kamath R. A study on the prevalence of internet addiction and its association with psychopathology in Indian adolescents. Indian J Psychiatry. 2013;55(2):140-3. doi: 10.4103/0019-5545.111451. 
34.Evren C, Dalbudak E, Evren B, Demirci AC. High risk of Internet addiction and its relationship with lifetime substance use, psychological and behavioral problems among 10(th) grade adolescents. Psychiatr Danub. 2014;26(4):330-9. 
35.Kaess M, Durkee T, Brunner R, Carli V, Parzer P, Wasserman C, et al. Pathological Internet use among European adolescents: psychopathology and self-destructive behaviours. Eur Child Adolesc Psychiatry. 2014;23(11):1093-102. doi: 10.1007/ s00787-014-0562-7. 
36.Shaw LH, Gant LM. In defense of the internet: the relationship between Internet communication and depression, loneliness, self-esteem, and perceived social support. Cyberpsychol Behav. 2002;5(2):157-71. doi: 10.1089/109493102753770552. 
37.Tao R, Huang XQ, Zhang HM. [Parental rearing styles and personality characteristics of young inpatients with internet addiction disorders in different family types]. Zhonghua Liu Xing Bing Xue Za Zhi. 2007;28(11):1153-4. 
38.June KJ, Sohn SY, So AY, Yi GM, Park SH. [A study of factors that influence Internet addiction, smoking, and drinking in high school students]. Taehan Kanho Hakhoe Chi. 2007;37(6):872- 82.