Global Prevalence of Gambling Disorder

Summary

Recent meta-analyses estimate the adult prevalence of problem or pathological gambling at approximately 1.29%, with an additional 2.43% of adults classified as moderate-risk or at-risk gamblers. Online gambling, electronic gambling machines, and poker are consistently identified as having the highest odds of associated harm.

Knowledge Gaps

• Lack of standardized terminology across international studies
• Limited longitudinal data on the transition between risk categories

Concerns

The heterogeneity of diagnostic criteria and terminology (e.g., 'problem' vs 'pathological' vs 'at-risk') complicates cross-jurisdictional comparisons.

Proposed Theories

• The 'Activity-Specific Risk Hypothesis' suggests that the structural characteristics of specific gambling modes (e.g., speed of play, reinforcement schedules) are the primary drivers of prevalence rates rather than individual vulnerability alone.

Sources