A Systematic Review of Internet Delivered Interventions for Gambling: Prevention, Harm Reduction and Early Intervention.

Internet delivered interventions are accessible and easy to access and can be used to deliver brief interventions. These interventions can be tailored according to individual need for the prevention and minimisation of gambling harm or early intervention for those that are displaying some signs of problems. The objective of this review was to summarise the existing literature on the effectiveness of prevention, harm reduction and early intervention programs when delivered online. A systematic review was conducted for peer-reviewed studies that evaluated internet delivered interventions for the prevention, harm reduction or early intervention for gambling problems. Four electronic databases were consulted in the past 20 years (2000-2020) resulting in a total of 15 included studies. Across identified studies just one study provided prevention with 7 harm reduction and 7 early interventions. The quality of the literature was variable with just 8 randomised controlled trials with the remainder matched controls or longitudinal cohort studies. The target group was predominantly gamblers accessing betting and casino websites (n = 8). Studies administered four types of interventions which included personalised and normative feedback, limit setting, self-directed cognitive and behavioural therapy and self-exclusion. These were delivered via customer gaming accounts, email, and self-learning packages. The available literature shows promise in the effectiveness of internet delivered interventions. However, the limited number of studies included in this review highlight significant lost opportunities to leverage technology in the prevention and reduction of gambling harm.