Table 1.
Descriptive odds ratios (OR) and corresponding χ²- and p-values and effect sizes across all relative age quarters for Kids Cup and Teenager Cup and separated for gender.
Sample
Q1:Q2
Q1:Q3
Q1:Q4
Kids Cup
Provincial Races [n=1438]
χ²
6.65
7.03
36.15
p value
0.010
0.008
<0.001
ω
OR
[95% CI]
0.08
1.28
[1.09 to 1.51]
0.1
1.29
[1.1 to 1.52]
0.22
1.82
[1.53 to 2.15]
National Final Races [n=241]
χ²
2.64
17.27
34.35
p value
0.104
<0.001
<0.001
ω
OR
[95% CI]
0.16
1.47
[1.01 to 2.15]
0.35
2.79
[1.84 to 4.22]
0.53
4.67
[2.93 to 7.45]
Teenager Cup
Provincial Races [n=1004]
χ²
0.69
0.00
2.71
p value
0.408
0.98
0.099
ω
OR
[95% CI]
0.04
1.41
[1.16 to 1.72]
0.00
1.29
[1.06 to 1.56]
0.07
1.51
[1.23 to 1.85]
National Championships [n=150]
χ²
0.27
0.00
4.41
p value
0.603
0.98
0.036
ω
OR
[95% CI]
0.05
1.7
[1.04 to 2.77]
0.00
2.71
[1.59 to 4.62]
0.23
2.6
[1.53 to 4.4]
Female
Kids Cup [n=580]
χ²
2.8
2.6
14.72
p value
0.095
0.107
<0.001
ω
OR
[95% CI]
0.1
1.3
[1.0 to 1.68]
0.08
1.28
[0.99 to 1.66]
0.22
1.84
[1.4 to 2.42]
Teenager Cup [n=387]
χ²
0.27
0.12
1.87
p value
0.605
0.728
0.171
ω
OR
[95% CI]
0.04
1.17
[0.85 to 1.6]
0.02
1.36
[0.99 to 1.88]
0.1
1.43
[1.03 to 1.97]
Male
Kids Cup [n=903]
χ²
3.86
4.43
21.44
p value
0.05
0.035
<0.001
ω
OR
[95% CI]
0.08
1.28
[1.04 to 1.58]
0.1
1.3
[1.06 to 1.6]
0.22
1.8
[1.45 to 2.24]
Teenager Cup [n=617]
χ²
2.25
0.1
0.99
p value
0.134
0.755
0.321
ω
OR
[95% CI]
0.08
1.59
[1.23 to 2.06]
0.02
1.24
[0.97 to 1.59]
0.06
1.56
[1.21 to 2.02]