Table 1

Cohort characteristics

Exposed (darkness)Unexposed (daylight)Total
Number of festivals21728
Average festival duration (hours)9.214.712.6
Cumulative number of spectators241 543158 800400 343
Cumulative person hours2 222 1962 334 3604 556 556
Number of medical assistances137913972776
Number of medical assistance/9 Person hours. 104 55.854.054.9