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Table 12 Multi-level regression analysis for changes in sex difference in swimming speed for the Olympic champions in freestyle, breaststroke, backstroke, butterfly and individual medley with correction for multiple participations

From: Changes in sex difference in swimming speed in finalists at FINA World Championships and the Olympic Games from 1992 to 2013

  β SE ( β) Stand. β T p
50 m freestyle 0.005 0.048 0.056 0.112 0.916
100 m freestyle 0.016 0.020 0.362 0.777 0.481
200 m freestyle 0.023 0.063 0.181 0.367 0.732
400 m freestyle 0.007 0.052 0.071 0.142 0.894
800 m freestyle −0.090 0.045 −0.705 −1.988 0.118
100 m breaststroke 0.023 0.029 0.368 0.792 0.473
200 m breaststroke −0.081 0.047 −0.652 −1.719 0.161
100 m backstroke −0.034 0.021 −0.627 −1.608 0.183
200 m backstroke 0.118 0.081 0.586 1.447 0.221
100 m butterfly −0.013 0.100 −0.065 −0.129 0.903
200 m butterfly 0.004 0.037 0.060 0.120 0.911
200 m individual medley 0.102 0.053 0.693 1.923 0.127
400 m individual medley 0.050 0.040 0.535 1.266 0.274