What the data says about event medical cover: and why it matters
As the summer festival season winds down, organisers everywhere are sitting down with their debrief notes. Which headliners pulled the biggest crowds? How did the audience flow during ingress and egress? Did the transport links cope? What was the feedback from the audience, and who’s already signed for next year?
All the big questions get asked… and rightly so. But there’s one question that sometimes slips down the list, squeezed between crowd management and catering reviews:
“Did we get the medical and harm reduction cover right?”
It might not have the same buzz as announcing next year’s lineup, but it’s just as critical. Because good medical cover doesn’t just patch people up, it protects lives, supports staff, reassures licensing bodies, and keeps the local NHS from being overwhelmed. Get it wrong, and the consequences can be serious: longer waits for patients, increased transfers off-site, reputational damage, even loss of your licence.
A recent study published in April 2024 looked at the 2022 Glastonbury Festival, the world’s largest greenfield music festival and effectively a pop-up city of over 210,000 people. The results give us one of the clearest pictures yet of what “enough cover” really looks like at scale and what other events, big and small, can learn from it.
What We Can Learn from Glastonbury
The 2022 Glastonbury Festival generated 2,828 patient attendances over six days. Put simply, that’s the equivalent of a small city’s A&E department operating in a muddy field. Yet when you dig into the data, some striking patterns emerged:
Most cases were minor. Blisters, joint injuries, and gastrointestinal upsets topped the list. Over 90% of patients were treated on-site and discharged straight back to enjoy the festival.
Serious emergencies were rare. Only 64 patients (0.30 per 1,000 attendees) required transfer to hospital, and no patients needed CPR. On-site imaging like ultrasound and X-ray significantly reduced the need for transfers.
Intoxication wasn’t the main driver. Despite what headlines might suggest, only 5.5% of patients were diagnosed with intoxication. Most of the workload came from everyday injuries and medical issues, things that could happen anywhere, but in this context need a field hospital ready to respond.
Different demographics = different risks. Children and older adults presented with very different patterns of illness compared to the general population. Blisters for the over 65s, illness in the under 10s. This is a reminder that knowing your audience isn’t just about the music they love, but the health support they’ll need.
Welfare worked. A notable proportion of intoxicated patients were discharged to welfare services rather than hospital, demonstrating the importance of having safe spaces as part of your harm reduction strategy
The Bigger Picture
The key takeaway? On-site medical services prevented the majority of cases from reaching local hospitals. Without a well-equipped, multi-disciplinary medical presence, Glastonbury would have pushed hundreds of additional patients into already stretched NHS emergency departments.
That’s not just a win for festival-goers, it’s vital for community relations, licensing, and long-term sustainability of events
Measure and review
One of the most valuable parts of the Glastonbury study is the hard data. A patient presentation rate of 13.47 per 1,000 attendees and a transport-to-hospital rate of 0.30 per 1,000 gives organisers a benchmark. You can compare your own figures against these to ask: did we see more or fewer patients than expected? Were we sending too many to local hospitals, or managing most on site?
For comparison, at Boomtown, with around 70,000 people on site, the medical teams typically see about 1,000 patients over the weekend, a rate closer to 14 per 1,000 attendees. Different event, similar ratio. That consistency is reassuring, but the real lesson is this: while presentation rates might look predictable on paper, the type of presentations and the strain they put on your medical and welfare services vary hugely depending on your audience, location, and infrastructure.
What this means for your event
The data from two festivals shows that patient presentation rates often fall into a predictable range (around 13–14 per 1,000 attendees). That’s useful, but it only tells part of the story. What really matters is what lies behind those numbers: were they mostly blisters and minor injuries, or were your teams dealing with delayed ambulance access, intoxicated patients needing welfare support, or a surge of mental health crises?
Benchmarking against large events gives you a starting point, but your real value comes from reviewing your own data year-on-year. That means asking: did our service cope well with demand? Did we rely too heavily on local NHS services? Were welfare and safeguarding teams able to pick up the right cases, or did gaps appear? For organisers, this isn’t just about ticking off a safety requirement - it’s about building resilience. The numbers show you whether your provision was enough. The stories behind the numbers tell you whether it was effective.
Not every festival is Glastonbury or Boomtown, but the lessons apply across the board. Whether you’re running a 5,000-capacity day event or a 200,000-person mega-festival, the principles remain the same:
Know your audience. Glastonbury’s data showed clear differences in presentation patterns between children, young adults, and older attendees. Your risk assessment (yes, the one we talked about last week!) needs to reflect who is actually on site, not just a generic “festival crowd.”
Minor doesn’t mean optional. Blisters, sprains, and stomach bugs might not sound dramatic, but they were the bulk of cases. Without on-site care, they can turn into hundreds of unnecessary hospital attendances.
Invest in infrastructure. Glastonbury reduced transfers by having X-ray and ultrasound available. Not every festival can stretch to that, but the principle holds: the more you can safely manage on-site, the less strain you put on local NHS services , this is something licensing committees and communities watch closely.
Don’t rely on “zero tolerance.” Only 5.5% of patients were recorded as intoxicated, but welfare services proved critical for safe recovery. The presence of welfare tents, safeguarding leads, and charity partners (like The Loop, Samaritans, or Festival Welfare Services) can make the difference between a minor incident and a crisis.
Measure and review. Glastonbury’s numbers give us a benchmark: roughly 13 patients per 1,000 attendees will present for care. That’s not a rule, but it’s a useful planning ratio to compare against your own data. Post-event reviews should ask: did we have enough staff, manage transfers effectively, and keep medical and welfare teams joined up?
Why it matters
Medical cover isn’t just another line on the budget. It’s the difference between a safe, well-run event and one that risks overwhelming local services or, worse, grabbing headlines for the wrong reasons. Done right, it protects your audience, your licence, your reputation, and the very future of your festival.
This article draws on data from Bennett, J.F. & Cottrell, D.J. (2024). “Glastonbury Festival: Medical Care at the World’s Largest Greenfield Music Festival.” Prehospital and Disaster Medicine, 39(2), 170–177. Cambridge University Press. PMCID: PMC11035920
A quick note of caution: the figures from both Glastonbury and Boomtown are useful benchmarks, but they’re not perfect. The Glastonbury study itself highlighted data limitations, and Boomtown’s figures are reported at a high level. These numbers are shared here to frame the discussion, and they should inform your planning, not be quoted as gospel. And if you want to make sure your plans, go beyond the numbers, that’s where bringing in an expert (like me!) can make all the difference.