Table 2.

Multilevel regression analyses for change in performance across the years for the annual fastest ten women and men (model 1), with correction for multiple participations (model 2), and with correction for multiple participation and age of athletes (model 3)

Model	β	SE (β)	Standard β	T	P
Annual top ten women
1	0.359	0.627	0.049	0.573	0.568
2	0.359	0.627	0.049	0.573	0.568
3	0.035	0.642	0.005	0.054	0.957
Annual top ten men
1	2.041	0.358	0.436	5.695	<0.001
2	2.041	0.358	0.436	5.695	<0.001
3	1.889	0.358	0.404	5.274	<0.001

Abbreviation: SE, standard error.