Table 2.
Results from 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
| Parameter | Estimated coefficient | SD | T | p | 95 % confidence interval | |
|---|---|---|---|---|---|---|
| Lower bound | Upper bound | |||||
| Intercept | 867.87 | 5.27 | 164.41 | <0.0001 | 857.51 | 878.22 |
| [Year = 1] | 49.98 | 4.78 | 10.44 | <0.0001 | 40.60 | 59.37 |
| [Year = 2] | 36.47 | 4.39 | 8.30 | <0.0001 | 27.85 | 45.08 |
| [Year = 3] | 0 | 0 | – | – | – | – |
| [Sex = 1] | 17.77 | 10.59 | 1.67 | 0.093 | −2.99 | 38.55 |
| [Sex = 2] | 0 | 0 | – | – | – | – |
| [Country = GBR] | 22.34 | 8.51 | 2.62 | 0.009 | 5.63 | 39.05 |
| [Country = GER] | −26.55 | 11.02 | −2.40 | 0.016 | −48.17 | −4.93 |
| [Country = NOR] | −17.48 | 5.68 | −3.07 | 0.002 | −28.63 | −6.33 |
| [Country = other] | 0 | 0 | – | – | – | – |
| [Year = 1] × [Sex = 1] | 52.42 | 17.41 | 3.01 | 0.003 | 18.26 | 86.59 |
| [Year = 1] × [Sex = 2] | 0 | 0 | – | – | – | – |
| [Year = 2] × [Sex = 1] | 12.73 | 13.96 | 0.91 | 0.362 | −14.66 | 40.14 |
| [Year = 2] × [Sex = 2] | 0 | 0 | – | – | – | – |
| [Year = 3] × [Sex = 1] | 0 | 0 | – | – | – | – |
| [Year = 3] × [Sex = 2] | 0 | 0 | – | – | – | – |
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