Table 3 Median career length and probability of a 10 year career or longer before and after the introduction of the age eligibility rule (AER).

Method	Group	Median career length (years)	Probability of 10 year career or longer (%)
Unadjusted and not modelled	Pre‐AER	4.7	–
	Post‐AER	6.4	–
Unadjusted modelled	Pre‐AER	11.9	64
	Post‐AER	17.0	83
Adjusted modelled	Pre‐AER	12.4	66
	Post‐AER	15.4	79