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Table 3 Multi-level regression analyses for swimming speed of the annual fastest and the annual ten fastest swimmers (Model 1) with correction for multiple finishes (Model 2) and age of athletes with multiple finishes (Model 3)

From: Analysis of sex differences in open-water ultra-distance swimming performances in the FINA World Cup races in 5 km, 10 km and 25 km from 2000 to 2012

Model ß SE ( ß) Stand. ß T p
   Annual fastest swimmers   
5 km women
1 0.002 0.017 0.031 0.097 0.924
2 0.002 0.017 0.031 0.097 0.924
3 0.002 0.024 0.037 0.081 0.937
5 km men
1 -0.012 0.017 -0.210 -0.678 0.513
2 -0.012 0.017 -0.210 -0.678 0.513
3 -0.008 0.019 -0.142 -0.413 0.689
10 km women
1 0.033 0.024 0.409 1.346 0.211
2 0.033 0.024 0.409 1.346 0.211
3 0.048 0.038 0.591 1.250 0.247
10 km men
1 0.004 0.021 0.061 0.183 0.859
2 0.004 0.021 0.061 0.183 0.859
3 0.082 0.031 1.278 2.622 0.031
25 km women
1 -0.026 0.022 -0.352 -1.190 0.262
2 -0.026 0.022 -0.352 -1.190 0.262
3 -0.041 0.021 -0.560 -1.926 0.086
25 km men
1 -0.009 0.027 -0.110 -0.349 0.734
2 -0.009 0.027 -0.110 -0.349 0.734
3 0.014 0.032 0.159 0.433 0.676
Annual ten fastest swimmers
5 km women
1 -0.007 0.005 -0.142 -1.559 0.122
2 -0.007 0.005 -0.142 -1.559 0.122
3 -0.006 0.005 -0.113 -1.236 0.219
5 km men
1 -0.012 0.005 -0.214 -2.377 0.019
2 -0.012 0.005 -0.214 -2.377 0.019
3 -0.012 0.005 -0.218 -2.424 0.017
10 km women
1 0.036 0.007 0.421 4.820 < 0.001
2 0.036 0.007 0.421 4.820 < 0.001
3 0.035 0.007 0.419 4.796 < 0.001
10 km men
1 0.006 0.006 0.089 0.929 0.355
2 0.006 0.006 0.089 0.929 0.355
3 0.005 0.006 0.073 0.727 0.469
25 km women
1 -0.023 0.007 -0.312 -3.548 0.001
2 -0.023 0.007 -0.312 -3.548 0.001
3 -0.023 0.007 -0.310 -3.498 0.001
25 km men
1 -0.011 0.009 -0.114 -1.250 0.214
2 -0.011 0.009 -0.114 -1.250 0.214
3 -0.011 0.009 -0.120 -1.300 0.196