30 Jun 2026
Gambling Disorder Diagnoses Climb Sharply in States Where Sports Betting Is Now Legal
Data from a fresh analysis of electronic health records reveals that diagnoses of gambling disorders jumped more than 60 percent in U.S. states that legalized sports betting after the 2018 Supreme Court decision, moving from 3.0 cases per 100,000 patients in 2018 to 4.8 per 100,000 by 2026, while the same metric dropped in states that kept betting illegal.
The study, released on June 29, 2026, draws on records maintained by Epic Systems and tracks patient encounters across multiple years; researchers compared trends inside legalizing states against those that did not change their laws, and the contrast stands out clearly.
Scope of the Analysis and Data Sources
Observers note that the numbers come from a broad sample of medical visits rather than self-reported surveys, which gives the findings a clinical anchor; the rise appears concentrated in jurisdictions that opened retail and online sportsbooks, and the pattern holds after accounting for population shifts and changes in overall healthcare utilization.
Analysts examined records spanning 2018 through early 2026, a period that includes the rapid rollout of legal sports betting in more than twenty states; the data set captures both new diagnoses and repeat visits, allowing researchers to measure incidence rather than simply prevalence.
Key Statistical Shifts
The rate increase from 3.0 to 4.8 per 100,000 represents a 60 percent relative jump, yet absolute numbers remain modest because gambling disorder is still diagnosed at low frequency in routine medical settings; even so, the directional change diverges from the decline recorded in non-legalizing states during the same window.
Figures show the steepest climb among men aged 18 to 29, a group already identified in earlier literature as higher risk for sports-related betting problems; within this cohort the diagnosis rate rose faster than in any other age or gender bracket examined.
Comparison Between Legal and Non-Legal States
States that kept sports betting off-limits saw the diagnosis rate fall, a movement that stands in direct contrast to the upward trajectory in legal markets; this divergence suggests the expansion of legal access correlates with increased clinical identification rather than a nationwide trend driven by awareness campaigns alone.
Researchers tracked roughly comparable patient volumes in both groups of states, which reduces the chance that differences in healthcare access explain the split; the analysis also adjusted for changes in screening practices that might have occurred after legalization in some jurisdictions.
Demographic Patterns and Age-Specific Trends
Young men between 18 and 29 accounted for the largest share of the added cases, and the increase in this slice outpaced growth among older adults or among women of any age; clinicians have long noted that this demographic engages heavily with mobile betting apps, yet the new data ties that engagement to measurable rises in treatment-seeking behavior.
Additional breakdowns reveal smaller but still positive increases among men aged 30 to 44, while rates for women remained comparatively flat across the study period; these layered patterns help isolate where the post-legalization effect registers most strongly inside the broader patient population.
Timing Relative to Legalization Rollouts
The upward curve begins to appear in 2019 and accelerates after 2021, coinciding with the first full seasons of widespread legal sports betting; states that legalized earliest show the most sustained elevation, whereas later adopters display a shorter but still noticeable lift by 2026.
Because the study follows the same health systems over multiple years, it captures both immediate post-legalization effects and longer-term stabilization; the continued climb through 2025 and into 2026 indicates the trend did not peak and reverse within the examined timeframe.
Clinical Context and Record-Keeping Details
Diagnoses rely on ICD codes entered during outpatient and inpatient encounters, which means the data reflect cases serious enough to come to medical attention rather than subclinical gambling behavior; this threshold keeps counts conservative and focuses attention on disorders that prompt professional intervention.
Epic Systems aggregates de-identified records from hundreds of health systems, giving the analysis geographic breadth without requiring new primary data collection; the same platform has supported prior studies on substance-use and behavioral-health trends, lending consistency to the methodology.
Conclusion
The June 2026 release supplies one of the first multi-year, multi-state comparisons that links post-2018 legalization directly to measured changes in clinical gambling-disorder diagnoses; the 60 percent rise inside legal states, the drop elsewhere, and the pronounced movement among young men together form a clear statistical signal drawn from routine medical records.
Further monitoring will show whether the trajectory continues, plateaus, or begins to respond to new responsible-gambling measures that states have introduced since the initial wave of legalization.