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Table 10 Multi-level regression analysis for changes in sex difference in swimming speed for finalists in the Olympic Games 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 −0.014 0.012 −0.170 −1.171 0.248
100 m freestyle 0.005 0.009 0.087 0.592 0.557
200 m freestyle −0.030 0.015 −0.284 −2.010 0.050
400 m freestyle −0.048 0.016 −0.409 −3.038 0.004
800 m freestyle −0.021 0.010 −0.295 −2.098 0.041
100 m breaststroke −0.012 0.018 −0.098 −0.668 0.507
200 m breaststroke −0.020 0.017 −0.174 −1.198 0.237
100 m backstroke −0.039 0.010 −0.507 −3.990 0.000
200 m backstroke 0.021 0.022 0.140 0.957 0.344
100 m butterfly −0.003 0.021 −0.025 −0.168 0.867
200 m butterfly 0.028 0.012 0.325 2.333 0.024
200 m individual medley 0.009 0.014 0.095 0.644 0.523
400 m individual medley −0.021 0.016 −0.187 −1.289 0.204