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Table 1 Coefficients and standard errors from a multivariable regression model (1)

From: Do women reduce the gap to men in ultra-marathon running?

  Coefficient Standard error p value
6 h 55.7 0.13 <0.0001
Ultramarathon
 12 h 34.4 0.24 <0.0001
 24 h 87.0 0.35 <0.0001
 48 h 166.3 1.33 <0.0001
 72 h 219.6 6.23 <0.0001
 144 h 463.5 3.99 <0.0001
 240 h 776.9 18.36 <0.0001
Sex (female) −5.6 0.31 <0.0001
Age
 Age centered linear −0.25 0.01 <0.0001
 Age centered squared −0.01 0.00 <0.0001
 Age centered cube 0.00 0.00 <0.0001
Sex (female) × age
 Age centered linear 0.00 0.03 0.902
 Age centered squared 0.00 0.00 0.007
 Age centered cube 0.00 0.00 0.907
Year
 Year linear −0.30 0.02 <0.0001
 Year squared 0.00 0.00 0.357
Sex (female) × year
 Year linear 0.12 0.05 0.007
 Year squared −0.01 0.01 0.122
Sex (female) × ultramarathon
 12 h −1.98 0.53 <0.0001
 24 h 1.33 0.81 0.099
 48 h 5.04 2.76 0.068
 72 h 16.39 14.25 0.250
 144 h −19.44 8.41 0.021
 240 h −71.72 31.78 0.024
Ultramarathon 12 h × age
 Age centered linear −0.06 0.02 0.020
 Age centered squared −0.02 0.00 <0.0001
 Age centered cube 0.00 0.00 0.046
Sex (female) × ultramarathon 12 h × age
 Age centered linear −0.02 0.05 0.678
 Age centered squared 0.00 0.00 0.096
 Age centered cube 0.00 0.00 0.401
Ultramarathon 24 h × age
 Age centered linear 0.19 0.04 <0.0001
 Age centered squared −0.04 0.00 <0.0001
 Age centered cube 0.00 0.00 0.031
Sex (female) × ultramarathon 24 h × age
 Age centered linear −0.13 0.09 0.131
 Age centered squared −0.01 0.00 0.002
 Age centered cube 0.00 0.00 0.803
Ultramarathon 48 h × age
 Age centered linear 0.63 0.14 <0.0001
 Age centered squared −0.07 0.01 <0.0001
 Age centered cube 0.00 0.00 0.749
Sex (female) × ultramarathon 48 h × age
 Age centered linear −0.05 0.35 0.898
 Age centered squared −0.01 0.01 0.711
 Age centered cube 0.00 0.00 0.484
Ultramarathon 72 h × age
 Age centered linear −0.71 0.54 0.194
 Age centered squared −0.09 0.02 <0.0001
 Age centered cube 0.00 0.00 0.033
Sex (female) × ultramarathon 72 h × age
 Age centered linear −1.18 1.40 0.398
 Age centered squared −0.12 0.07 0.088
 Age centered cube 0.00 0.00 0.717
Ultramarathon 144 h × age
 Age centered linear 0.29 0.41 0.482
 Age centered squared −0.18 0.02 <0.0001
 Age centered cube 0.00 0.00 0.354
Sex (female) × ultramarathon 144 h × age
 Age centered linear −0.10 0.99 0.923
 Age centered squared −0.01 0.04 0.727
 Age centered cube 0.00 0.00 0.276
Ultramarathon 240 h × year
 Year centered linear 2.54 1.87 0.173
 Year centered squared −0.22 0.07 0.002
 Year centered cube −0.01 0.01 0.011
Sex (female) × ultramarathon 240 h × age
 Year centered linear −4.16 3.72 0.264
 Year centered squared 0.21 0.12 0.069
 Year centered cube 0.01 0.01 0.420
Ultramarathon 12 h × year
 Year centered linear −0.54 0.04 <0.0001
 Year centered squared 0.00 0.00 0.324
Sex (female) × ultramarathon 12 h × year
 Year centered linear −0.23 0.10 0.018
 Year centered squared −0.01 0.01 0.222
Ultramarathon 24 h × year
 Year centered linear −1.32 0.07 <0.0001
 Year centered squared −0.02 0.01 <0.0001
Sex (female) × ultramarathon 24 h × year
 Year centered linear −1.01 0.17 <0.0001
 Year centered squared −0.04 0.02 0.009
Ultramarathon 48 h × year
 Year centered linear −2.73 0.25 <0.0001
 Year centered squared −0.04 0.02 0.016
Sex (female) × ultramarathon 48 h × year
 Year centered linear −2.54 0.53 <0.0001
 Year centered squared −0.14 0.04 0.001
Ultramarathon 72 h × year
 Year centered linear −1.92 1.08 0.076
 Year centered squared −0.26 0.11 0.020
Sex (female) × ultramarathon 72 h × year
 Year centered linear −1.91 2.61 0.465
 Year centered squared 0.04 0.24 0.864
Ultramarathon 144 h × year
 Year centered linear 0.75 0.84 0.372
 Year centered squared 0.36 0.05 <0.0001
Sex (female) × ultramarathon 144 h × year
 Year centered linear −1.47 1.91 0.441
 Year centered squared 0.02 0.13 0.896
Ultramarathon 240 h × year
 Year centered linear 1.37 3.46 0.692
 Year centered squared 0.48 0.68 0.480
Sex (female) × ultramarathon 240 h × year
 Year centered linear 5.52 5.88 0.348
 Year centered squared 1.56 1.21 0.196
  1. Variable were centered: age = 46, calendar year = 2007