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Table 2 Results of the contingency analysis of the RAE in the total sample and by category of both sexes

From: Relative age effects on speed trials in Brazilian athletics

Total Sample

Sex

Q1

Q2

Q3

Q4

χ2

p

V

L-Ratio

Odds ratio (CI 95%)

N

%

N

%

N

%

N

%

Semester

Q1:Q4

Q1

Q2

Q3

Q4

Male

152

33.7

154

34.1

85

18.8

60

13.3

60.26

 < 0.001*

0.18

9.67

1.02 (1.01; 1.03)

1.03 (1.01; 1.06)

1.01 (1.00; 1.04)

1.03 (1.00; 1.05

0.99 (0.85; 1.10)

1.00 (0.91; 1.31)

Female

119

26.3

127

28.1

108

23.9

98

21.7

4.26

 > 0.2

0.11

6.40

1.00 (0.99; 1.02)

1.00 (0.98; 1.02)

0.90 (0.85; 1.00)

1.00 (0.95; 1.10)

1.00 (0.99; 1.03)

1.00 (0.98; 1.02)

U-16

Male

73

36.3

64

31.8

42

20,9

22

10.9

31.29

 < 0.001*

0.15

3.60

1.05 (1.00; 1.03)

1.01 (1.00; 1.05)

1.02 (1.00; 1.10)

1.01 (1.00; 1.05)

1.00 (0.95; 1.05)

0.99 (0.89; 1.02)

Female

46

23

57

28.5

45

22.5

52

26

1.88

 > 0.5

0.09

0.03

1.01 (0.99; 1.03)

1.02 (0.99; 1.04)

1.00 (0.95; 1.02)

1.01 (0.97; 1.05)

0.99 (0.89; 1.00)

1.00 (0.98; 1.02)

U-18

Male

79

31. 6

90

36

43

17.2

38

15.2

32.14

 < 0.001*

0.15

4.00

1.02 (1.00; 1.04)

1.02 (1.01; 2.38)

1.01 (1.00; 1.05)

1.10 (1.03; 1.15)

1.00 (0.99; 1.03)

1.00 (0.95; 1.03)

Female

73

29

70

27.8

63

25

46

18.3

6.95

 > 0.05

0.07

0.08

1.00 (0.98; 1.02)

0.60 (28; 1.25)

0.99 (0.80; 1.00)

1.00 (0.97; 1.05)

0.99 (0.91; 1.04)

1.00 (0.97; 1.07)

  1. RAE Relative age effect, N Absolute number of participants. % Percentage. χ2: Coefficient of contingency. V Effect Size by “V” Cramer, L-Ratio Likelihoot ratio, U-16 Under-16 category, U-18 Under-18 category, Q1 First quartile, Q2 Second quartile. Q3 Third quartile, Q4 Fourth quartile
  2. *It demonstrates significance at the 0.5 level