Problem Gambling in the UK: PGSI Scores, Age Data, and What the Numbers Say

I sat across from a 22-year-old who told me he did not have a gambling problem. He just could not stop thinking about it. He had lost £1,800 over three months, was borrowing from friends, and had started lying to his girlfriend about where the money went. He scored 14 on the PGSI — deep into the problem-gambling category. Among 18-to-24-year-olds in the UK, 5.3% score 8 or higher on that same scale, the highest rate of any age group.

The Problem Gambling Severity Index is not a perfect tool, but it is the most widely used standardised measure in the UK, and the data it generates paints a picture that every player — and every analyst covering the non-GamStop space — needs to understand.

What the PGSI Measures and How Scores Are Categorised

The PGSI is a nine-question self-assessment designed to measure gambling-related harm. Each question asks about a specific behaviour or consequence — chasing losses, betting more than you can afford, feeling guilty about gambling, borrowing money to gamble — and the respondent rates frequency on a four-point scale: never, sometimes, most of the time, or almost always.

Scores range from 0 to 27. The categorisation is straightforward. A score of 0 means non-problem gambling. Scores of 1 to 2 indicate low-risk gambling — the person experiences few or no negative consequences. Scores of 3 to 7 place someone in the moderate-risk category, where gambling is beginning to cause some negative effects. A score of 8 or above is classified as problem gambling, indicating behaviour patterns that are causing significant harm.

What makes the PGSI useful for population-level analysis is its consistency. The same questions, the same scoring, applied across surveys year after year. That consistency allows researchers — and regulators — to track trends over time rather than relying on anecdotal evidence about whether gambling harm is increasing or decreasing.

The limitation is that it is a self-report measure. People understate. People misremember. People who are deep in a gambling problem are often the least likely to answer honestly. The 5.3% figure for 18-to-24-year-olds almost certainly understates the true prevalence. I have never met a researcher in this field who believed the real number was lower than what surveys capture.

PGSI by Age Group: Why 18-24 Scores Highest

The age gradient in PGSI data is the most striking pattern in UK gambling statistics. Among 18-to-24-year-olds, 5.3% score 8 or above — problem gambling. A further 21.9% have a non-zero PGSI score, meaning nearly one in five young adults who gamble experience at least some level of gambling-related harm.

Compare that to older age groups, where problem-gambling prevalence drops steadily. The 35-to-44 bracket typically falls below 2%, and over-55s register under 1%. The question is why the youngest legal gamblers are the most affected.

Three factors converge. First, digital-first access. The 18-to-24 cohort grew up with smartphones as their primary computing device. Their first gambling experience is overwhelmingly online — slots, sports betting, casino apps — rather than the bookmaker shop or the bingo hall. Online gambling removes the friction that once served as a natural brake: the walk to the shop, the queue, the physical cash changing hands. A 20-year-old can lose £200 in twenty minutes without leaving bed.

Second, financial vulnerability. Younger adults have lower disposable incomes, less financial literacy on average, and are more susceptible to the perceived quick-money appeal of gambling. A £50 loss that a 45-year-old earner absorbs without consequence can represent a week’s spending money for a student.

Third, social normalisation. GamStop registration data shows a 40% year-on-year increase among 16-to-24-year-olds, and that increase coincides with the explosion of gambling content on social media, Twitch streams, and YouTube. Gambling is presented as entertainment, as content, as aspirational — and the gap between watching someone else’s curated highlights and experiencing your own losses is where harm occurs.

Even among 11-to-17-year-olds — who cannot legally gamble — 1.2% already meet the problem-gambling threshold. That figure has held roughly stable at around 1.2% to 1.5% over recent years, which is itself concerning: it means underage problem gambling is not declining despite increased awareness campaigns.

Gambling Participation vs. Gambling Harm: A Key Distinction

Here is where the data gets nuanced, and where lazy analysis tends to go wrong. Overall gambling participation among UK adults is stable at about 48% over the last four weeks, per the Gambling Survey for Great Britain. That figure has not meaningfully changed in years. The UK is not experiencing an explosion of new gamblers.

What is changing is the intensity and distribution of harm. Participation is flat, but the concentration of harm among young, digitally-native gamblers is increasing. This distinction matters because it undermines two competing narratives simultaneously. The narrative that “gambling is out of control” is contradicted by flat participation rates. The narrative that “everything is fine” is contradicted by rising PGSI scores among the youngest cohort.

Helen Rhodes, the Gambling Commission’s Director of Major Policy Projects, framed the regulatory response in terms of consumer empowerment — “Our work will help empower consumers to have greater awareness and control over their gambling.” That language of empowerment acknowledges that prohibition is not the goal; informed decision-making is. But empowerment requires data, and the PGSI data suggests that the consumers who most need empowering are the ones least likely to seek it.

For the non-GamStop space specifically, this creates a difficult reality. Offshore casinos operate without UKGC-mandated affordability checks, without mandatory session time reminders, and without centralised self-exclusion through GamStop. A 22-year-old who registers with a Curacao-licensed casino after self-excluding from UKGC sites is not just moving to a different market. They are moving to a market with fewer guardrails at the exact point when the data says they need more of them.

Available Support Resources for UK Gamblers

I make it a point in every article I write about this industry to include this section, and I make no apologies for it. The offshore market exists, it is legal for players to access it, and pretending otherwise helps nobody. But the data is clear that gambling harm is real, measurable, and disproportionately affects younger players.

GamCare operates the National Gambling Helpline at 0808 8020 133, available 24 hours a day, seven days a week. They also offer live chat through their website. The service is free, confidential, and staffed by trained advisers who understand both the UKGC-regulated and the offshore gambling landscape.

GamStop itself is available at gamstop.co.uk for self-exclusion from all UKGC-licensed operators. It does not cover non-GamStop casinos, but it covers the majority of the UK market. Gamban provides device-level blocking software that works across both UKGC and non-UKGC sites, making it the closest thing to a universal self-exclusion tool currently available.

The NHS National Gambling Clinic in London offers free, specialist treatment for gambling disorder. Referrals can be made by GPs, or patients can self-refer. Regional gambling clinics are expanding across England, with services now available in several major cities.

If any of the statistics in this article feel personal rather than abstract, these resources exist precisely for that moment. A PGSI score is a number. What it measures is a lived experience — and lived experiences respond to support when people reach for it.

Prepared by the StakeVault editorial staff.