Pediatric & Family Events — State of the Evidence
Revised: 2026-08-16 (v2) — supersedes the 2026-08-08 white-space draft. What changed: the domain is no longer empty. Two peer-reviewed anchors are now Crossref-verified and extracted (McQueen 2010, Thierbach 2003), and the 2026 Purple Guide tranche supplies the first guidance-level answers to the operational questions v1 could only pose. The white-space framing is retained where it is still true — US policy and peer-reviewed staffing evidence — and retired where it no longer is.
Bottom line for practitioners
Children at mass gatherings are not small adults, and the two verified papers we hold prove it with numbers: children carry 2.5 times the adult odds of presenting after a crush injury at the same event, and a fifth to a third of children seeking care arrive with no adult attached. There is still no dedicated pediatric mass-gathering policy from any US professional body, no age-stratified PPR baseline, and no evidence-based pediatric staffing ratio. But there is now a detailed operational playbook for the unaccompanied-child problem — the UK's Purple Guide Safeguarding chapter — and a density-based admission position for the youngest children. A director of a family-oriented event today can plan the reunification, handover and supervision layer from guidance, while the staffing and prediction layers remain extrapolation and judgment. This page states exactly which is which.
What we know — the two verified anchors
McQueen 2010: the presentation profile is different, with confidence intervals. A retrospective review of all patient report forms from a large outdoor music festival (Leeds, UK, 2003). Pediatric cases were ~15% of total event workload. Children versus adults at the same event: crush injury OR 2.536 (95% CI 1.537–4.187); collapse/syncope OR 2.687 (1.442–5.007); nausea OR 3.484 (2.089–5.813); alcohol/drug involvement OR 0.477 (0.250–0.912). No critical care incidents involving children occurred. Children are crushed and faint substantially more, and drink far less — the profile is mechanical and environmental, not toxicological [1].
Thierbach 2003: the unaccompanied-minor problem, quantified. At a television-sponsored fun fair attended by ~100,000 children, 192 patients presented over nine hours — an overall usage rate of 19.2 encounters per 10,000 spectators, the first pediatric-event PPR datapoint we hold. Twenty percent of children under 10 needing medical assistance were unaccompanied by an adult, and up to 33% of all children seeking care may be. Most needs were minor (85.4% seen under ten minutes; minor trauma 53.6%, minor medical 10.9%, insect bites 10.4%); serious problems were 9.9% and 2% were transported. Half of all patients were under 14 [2]. Bibliographic caution: a 2001 one-page congress abstract by the same lead author ("Medical Support for Children During Mass Gatherings," Prehosp Disaster Med 16(S1):S76) is a different work and must not be conflated with this full paper — our library previously carried the abstract-era citation.
The unaccompanied-minor problem now has an operational answer — from guidance, not from US sources. The Purple Guide's Safeguarding chapter (2026, most recent checking by a specialist children's-event provider) is the most detailed treatment of unaccompanied children at events located anywhere. Its load-bearing provisions: organisers must have a missing and found child policy — mandatory language in a document that elsewhere says "should" (§78); children must not be left in the sole care of a single worker (§81), which is a staffing rule in disguise and extends to an unaccompanied child in a medical tent; PA and open-radio announcements must not give a child's name or personal details — the instinctive broadcast is the restricted act, because it tells every listener who is unaccompanied and where to collect them (§83); where a child is reluctant to leave with a collecting adult, seek a second opinion, e.g. police (§85); a child should not be handed over to a parent who is clearly drunk (§86); and handover requires signature, proof of identity, and the recorded length of separation (§87). Section 86 creates a decision point event medical staff will actually face — an intoxicated adult presenting to collect a child — with no protocol anywhere in US event medicine [3].
A negative finding worth recording: there is no supervision ratio. The same chapter's "Numbers of Children in Dedicated Areas" section, where a child-to-supervisor ratio would live, contains none — numbers are to be based on space, activities and available supervisory adults, with local-authority advice for under-eights. Anyone citing "the Purple Guide ratio" is citing something that does not exist [3].
Admission of the youngest children is a density decision. The Crowd Management chapter: children under five "may not be appropriate" at certain events by reason of the scale and/or density of the crowd, with advance advertising where excluded; a Vulnerable Persons Policy is required; and personnel employed specifically to work with children must hold Enhanced DBS clearance [4]. The exclusion logic connects directly to McQueen's crush OR of 2.5 — children are more vulnerable in dense crowds, so at sufficient density, do not admit the youngest. No US jurisdiction in our 51-jurisdiction survey requires background checks for event staff working with children.
Parents are a predictable counterflow hazard in evacuation. Where children are separated from parents (crèches, play areas), "parents will normally try to reach their children, even if this means going against the normal direction of escape" — so evacuation arrangements must be explained to parents at drop-off (Contingency §113), and evacuation plans must provide additional assistance for children, explicitly including in invacuation and lockdown procedures (§112) [5]. Campsites add the overnight case: children may need accommodating overnight, and lost-children communications must be established, with a lost children point among 24-hour site services [6].
The youth/adolescent layer. A scoping review of multi-day youth-focused mass gatherings (23 records, 19 events, 1993–2022) found infectious-disease outbreak the dominant emergency (68.4% of events; influenza, measles, N. meningitidis), with foodborne outbreaks at 21.1% [7]. A qualitative Jamboree study found persistent mental-health preparation gaps despite trained welfare leaders [8]. The Safeguarding chapter's teenager provisions map onto this population: at events attended predominantly by young teenagers without parents, anticipate separation from companions, missing the transport home, and lost phones and money; provide a help point, a specified parental meeting place, and a staffed message facility [3]. "Missing the transport home" is the sleeper mechanism by which a supervised outing becomes an unsupervised night.
What still does NOT exist
Stated plainly, because these absences remain findings:
- No dedicated pediatric mass-gathering policy from any US body — not AAP, not ACEP, not NAEMSP. The AAP disaster policy remains the nearest document, and it is about disasters, not planned events [9]. The Purple Guide chapters cited above are UK industry guidance: a floor, not a US standard. - No age-stratified PPR baseline. Thierbach's 19.2/10,000 is one event, one design, one country, and an all-child crowd; the foundational PPR literature still does not stratify by pediatric age bands. - No family-event staffing evidence. Nothing supports or refutes any pediatric-capable staffing ratio, credential mix, or equipment-cache depth. The Purple Guide's two-person rule is a safeguarding floor, not a clinical staffing model. - No pediatric-specific crush thresholds. The density literature is adult-normed; Still's own criticism — that persons-per-square-metre limits assume a person of a given size — applies with maximum force to children, and no published threshold adjusts for them.
Why it matters clinically
The open planning questions from v1, updated for what guidance now answers:
- Separated children. Partially answered. Expected volume is still unquantified, but the protocol is now specifiable from guidance: supervised collection point, two-worker minimum, no-names announcements, documented handover with ID and signature, drunk-parent refusal, police second-opinion for reluctant children [3]. What remains unmeasured is the load: Thierbach's 20–33% unaccompanied share is the only number, and it describes presentations, not lost-child reports. - Weight-based dosing and equipment. Still open. Cache depth for a given pediatric census remains unmeasured. - Family reunification under surge. Mechanism now named, magnitude still unknown. Parental counterflow is documented and plannable; no study measures its effect on egress time or casualty risk.
We continue to supply no invented numbers. The guidance provisions above are cited as guidance, not as evidence of effectiveness.
The research agenda
The manuscript argument has sharpened since v1 and is now three-sided: Thierbach quantifies the unaccompanied-child problem; the Purple Guide answers it operationally; and no US mass-gathering regulation in our 51-jurisdiction survey addresses it at all. That triangle — measured problem, foreign guidance answer, domestic regulatory silence — is the opening argument for both ripe projects: (1) a prospective, age-stratified pediatric presentations study at family-oriented events, which would create the field's first baseline; and (2) a policy proposal through AAP/ACEP section channels for a dedicated pediatric mass-gathering statement [10].
How MGMI handles it today
The composer and calculator still carry no pediatric-specific multipliers, because no outcome evidence supports any — that position is unchanged and correct. What has changed: family-event plans composed by MGMI should now carry the guidance-level safeguarding layer (reunification protocol, handover documentation, two-worker rule, no-names announcement policy, drop-off briefing for crèche parents) as named plan lines citing the Purple Guide entries, clearly chipped as guidance rather than evidence. Directors should still apply general-event outputs, add margin by judgment, and document their reasoning.
Reading pathway
1. [1] — the presentation-profile anchor; read first. 2. [2] — the unaccompanied-minor quantification. 3. [3] — the operational playbook (guidance). 4. [4] — under-five admission, Vulnerable Persons Policy, DBS. 5. [7] and [8] — the youth/adolescent layer. 6. [9] — nearest-neighbor US policy; disaster-focused. 7. [11], [12], [13] — the historical core and unresolved shelf records (unextracted; the Waisman and Hostler records remain bibliographically unresolved and should be treated accordingly).
Citations
[1] · [2] · [3] · [4] · [5] · [6] · [11] · [12] · [13] · [9] · [7] · [8] · [10]
Note on citation slugs: [1] and [2] should be reconciled to the actual library slugs at ingest — the McQueen and Thierbach rows predate this synthesis and their slugs may differ (the metadata audit of 2026-08-15 corrected both rows' titles, journals and identifiers: McQueen DOI 10.1017/s1049023x00008074, PMID 20586015; Thierbach DOI 10.1017/s1049023x00000625, PMID 14694895).
Draft synthesis — pending physician review (BA). v1 documented an absence; v2 documents a partly-filled gap and keeps the remaining absences named. Corrections welcome.