AbstractObjectiveTo describe the surveillance indicators implemented for the healthimpact assessment of a potential health event occurring before, duringor after the UEFA Euro 2016 football matches in order to timelyimplement control and prevention measures.IntroductionFrance hosted 2016 UEFA European Football Championshipbetween June 10 and July 10. In the particular context of severalterrorist attacks occurring in France in 2015 , the French nationalpublic health agency « Santé publique France » (formerly FrenchInstitute for Public Health Surveillance-InVS) was mandated bythe Ministry of Health to reinforce health population surveillancesystems during the UEFA 2016 period. Six French regions and10 main stadiums hosted 51 matches and several official andnonofficial dedicated Fan Zones were implemented in many citiesacross national territory. Three types of hazard have been identified inthis context: outbreak of contagious infectious disease, environmentalexposure and terrorist attack.The objectives of health surveillance of this major sportingevent were the same as for an exceptional event including massgathering  : 1/ timely detection of a health event (infectiouscluster, environmental pollution, collective foodborne disease...)to investigate and timely implement counter measures (control andprevention), 2/ health impact assessment of an unexpected event.The French national syndromic surveillance system SurSaUD® wasone of the main tools for timely health impact assessment in thecontext of this event.MethodsFrench national syndromic SurSaUD® system has been setup in 2004 and supervised by Santé publique France for 12 years.It allows the daily automatic collation of individual data from over650 emergency departments (ED) involved in the OSCOUR®network and 61 emergency general practitioners’ (GPs) associations(SOS Médecins) . About 60,000 attendances in ED (88% of thenational attendances) and 8,000 visits in SOS Médecins associations(95% of the national visits) are daily recorded all over the territoryand transmitted to Santé publique France.Medical information such as provisional medical diagnosiscoded according to the International Classification of Diseases, 10thRevision (ICD-10) for EDs and specific thesaurus for SOS Médecinsis routinely monitored through different syndromic indicators (SI).SI are defined by medically relevant clusters of one or severaldiagnoses, serving as proxies for conditions of public health interest.From June 10 to July 10, 19 SI were daily analyzed throughautomatic national and regional dashboards. SI were divided into3 groups of public health surveillance interest :1/ description of population health: injuries, faintness, myocardialinfarction, alcohol, asthma, heat-related symptoms, anxious troubles ;2/ infectious diseases/symptoms with epidemic potential ordiseases/symptoms linked with an environmental exposure: fever,fever associated with cutaneous rash, meningitis, pneumonia,gastroenteritis, collective foodborne disease ;3/ symptoms potentially linked with a CBRN-E exposure:influenza-like illness, burns, conjunctivitis, dyspnea/ difficultybreathing, neurological troubles, acute respiratory failure.Daily analysis were integrated into specific UEFA 2016surveillance bulletins and daily sent to the Ministry of Healthincluding week-ends.ResultsSI followed during the UEFA Euro 2016 period were nonspecificand potentially affected or influenced by several events appart fromthe championship. Between June 10 and July 10, two moderateheat-wave periods occurred on a large part of mainland France : thefirst one from June 22 to 25 (beginning in the West-South of Franceand then moving North and East of the country) and the secondone from July 8 to 11 in the East-South. An increase in heat-relatedindicators (hyperthermia/heat stroke, dehydration, hyponatremia andburns) has been observed during both periods in five French regionsincluding four hosting regions. Only minor increases in the other SIfollowed during the Euro 2016 period were observed.ConclusionsHealth surveillance implemented during 2016 UEFA EuropeanFootball Championship through a daily analysis of non-specificSI from the French syndromic surveillance system SurSaUD® didnot show any major variation associated with the sporting event.The observed variations were related with specific environmentalconditions (heat-waves). Together with the health surveillancesystem, preventive plans were set up during the event essentially byoffering flyers with information and useful tips on the main preventiveattitudes and measures to adopt in a summer festive context (risksassociated with alcohol and drug intake, injuries, heat and sunexposure, dehydration, unprotected sexual behaviour...).
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