Table 1

 Numbers presenting to the medical centre by patient subgroup

Patient group1994–19962000–2002p Value
Values are numbers (% of total presenting to the medical centre in that time period). As accurate figures for the total number of crowd, mechanics, and marshals attending during each time period are not available, these data cannot be directly compared.
Drivers230 (62)130 (39)<0.001
Motorcyclists27 (7)62 (18)NS
Crowd82 (22)103 (31)
Mechanics14 (4)20 (6)
Marshals19 (5)21 (6)
Total372336