Epidemiological Burden and Mode Disparities in Problem Gambling

Summary

Recent international meta-analyses and national surveys demonstrate that adult problem gambling prevalence sits around 1.2% to 1.3%, with moderate-risk gambling affecting an additional ~2.4% of adults globally. Studies show that mixed-mode and online continuous-play gamblers experience significantly higher odds of severe harms—spanning mental health, physical wellbeing, and relationships—than traditional venue-only gamblers.

Knowledge Gaps

• Underreporting and measurement heterogeneity across international screening instruments (e.g., PGSI vs. DSM-based scales).
• Lack of longitudinal cohort tracking comparing harm persistence across emerging product types such as esports and mixed digital formats.

Concerns

Prevalence rates based solely on clinical thresholds frequently mask the true burden of sub-clinical, low-to-moderate risk harm distributed widely across the general population.

Proposed Theories

• The Continuous-Format Exposure Hypothesis: The risk of severe gambling harms escalates non-linearly when the latency between wager placement and outcome event drops below digital feedback thresholds.

Sources