Prospective associations between internet use and poor mental health: A population-based study

Area of Science:

• Psychiatry
• Public Health
• Digital Health

Background:

• Most evidence on internet use and mental health is cross-sectional.
• Prospective associations between internet use and mental health are less understood.

Purpose of the Study:

• To investigate prospective associations between internet use (hours online and specific experiences) and future mental health problems.
• To differentiate these associations by sex.

Main Methods:

• 1,431 UK birth cohort participants (Avon Longitudinal Study of Parents and Children) completed internet use questionnaires at age 18.
• Mental health outcomes (self-harm, depression, anxiety) assessed at ages 21 and 22.
• Logistic regression models were used, with analyses stratified by sex.

Main Results:

• High internet use was linked to increased depression risk in females and self-harm risk in males.
• Cyberbullying, meeting online contacts offline, and exposure to unwanted sexual material or violent content were associated with increased risks of depression and/or self-harm in females.
• No significant associations were found between hours spent online and anxiety symptoms.

Conclusions:

• Findings underscore the differential impact of internet use on male and female mental health.
• Specific online experiences, particularly cyberbullying, are significant risk factors for adverse mental health outcomes.
• Emphasizes the need for digital citizenship education to promote safe and responsible technology use among young people.