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Table 1 Estimation of the fixed effects of the mixed model with the three top countries (Norway or NOR, German or GER and Great Britain or GBR) with overall race time as dependent variable

From: Nation related participation and performance trends in ‘Norseman Xtreme Triathlon’ from 2006 to 2014

Parameters

F

p

Intercept

35,386.32

<0.0001

Year

42.62

<0.0001

Sex

21.07

<0.0001

Country

11.73

<0.0001

Year × sex

4.57

0.011

  1. Calendar year is rescaled using percentiles (Year = 1 is the period from 2006 to 2008, Year = 2 the period from 2009 to 2011, Year = 3 the period from 2012 to 2014). Sex Code = 1 is female, Sex Code = 2 is male