Introduction
In 2017, global internet users were 48.7% in Asia, 17% in Europe and 10.9% in Africa (Internet World Stats, 2017). Due to the development and spread of cheaper and more user-friendly computer technology and software (eg, portable computers, Microsoft Word), the use of the internet has increased dramatically. The penetration of the internet increased from 0.5% of the population in 2000 to 34.1% in 2017.1 Due to the popularity of the internet and the issue on the negative impact of its use, internet addiction (IA) has received critical consideration.
Many studies are still ongoing on the concept and the definitions of Internet addiction in the literature, controversy around suggested diagnostic criteria, and whether IA truly exists as a diagnosable addiction or not. Indeed, most IA theorists have based their definitions of IA on established addiction conceptual frameworks; for example, IA has been recognised as a potential problem since the introduction of the term by Ivan Goldberg in 1996.2 Davis3 preferred the term ‘Pathological Internet Use (PIU)’ instead of IA as it resembles psychoactive substances dependency, and is defined as an inability to control internet use and leads to psychological, social, family, school and work impairment.
Young4 linked excessive internet use to pathological gambling disorder under the Diagnostic and Statistical Manual-IV (DSM) and modified it to make diagnostic criteria for ‘problematic internet use’. Previous self-report surveys indicated the prevalence rate of IA among adolescents ranges from 0.9% to 38%.5 Excessive internet use, as defined by Ran Tao and colleagues,6 is considered as an impulse-control disorder that includes salience, mood modification, tolerance, withdrawal symptoms, conflict and relapse. The eight IA disorder symptoms are (1) preoccupation with the internet, (2) withdrawal symptoms, (3) tolerance, (4) unsuccessful attempts to control internet use, (5) continued excessive internet use despite knowledge of negative psychosocial problems, (6) loss of interests, previous hobbies and entertainment as a result of internet use, (7) use of the internet to escape or relieve dysphonic mood, and (8) deception of family members, therapists or others. Many epidemiological studies done on students from schools in various countries have found the prevalence rates of IA from a low of 1% in Greece7 to a high of 36.7% in Italy.8 IA has also drawn attention from health professionals, educators and the public as this phenomenon has been found to result in negative consequences for IA sufferers. School children are the most vulnerable to internet use due to the following factors: ease of use, availability of time, limited parental supervision, route of escape and social interaction.9 Excessive internet use is associated with attention-deficit/hyperactivity disorder,10 depressive symptoms,11 anxiety disorder,12 low self-esteem,13 shyness,14 social anxiety15 and suicidal ideas.16 17 IA is not recognised by the DSM-V as a disorder, but it is considered as an area of further research.18 A number of studies have been conducted worldwide but used inconsistent criteria to check the level of addiction. The main use of the internet for students is interpersonal communication through email, instant messaging and chat programs.19 This study presented a background on the internet and how this has expanded in use and has led to the existence of IA.
Previous Indian researches have not conducted studies on school students to find out prevalence of internet use and its effect on them. Our study found out that excessive Internet use led to the abnormal behavior which causes negative consequences to its users. Early diagnosis of risk factor related to excessive internet use, provide education about responsible use and supervision of students by family members.