Table 1

Division, playing position, and age distribution of the cohort at the beginning of the study

No%
*Percentage totals may be subject to rounding errors associated with individual components.
Division
    Premier61826
    1st71230
    2nd55023
    3rd49621
    Total*2376100
Playing position
    Goalkeeper2239
    Defender81734
    Midfielder73931
    Forward59725
    Total*237699
Age distribution
    17–2297041
    23–2881734
    29–3450821
    35+813
    Total*237699