Table 2.

Birthdate players’ distribution (n [%] and odds ratio [OR]) by trimester (T) and semester (S) according to the competition category

TRIMESTERS		T1	T2	T3	T4	T5	T6	T7	T8		d		Vc
		%	%	%	%	%	%	%	%	$x^2$	f	p
		(OR)	(OR)	(OR)	(OR)	(OR)	(OR)	(OR)	(OR)
CAT	U-18	26.0 (6.1)	15.7 (3.3)	13.3 (2.7)	10.3 (2.0)	13.0 (2.6)	8.1 (1.5)	8.1 (1.5)	5.4 (-)	87.2 2	7	<0.001	0.49
	U-20	22.0 (3.1)	9.1 (1.1)	12.5 (1.6)	12.2 (1.5)	12.2 (1.5)	12.8 (1.6)	11.0 (1.4)	8.2 (-)	33.1 2	7	<0.001	0.3 2
	Senior	26.3 (1.5)	28.3 (1.6)	25.8 (1.4)	19.5 (-)	-	-	-	-	7.38	3	0.061	0.1 4
SEMESTERS		S1			S2	S	3	S	4		d		Vc
		%	OR	%	OR	%	OR	%	OR	$x^2$	f	p
CAT	U-18	41.7	4.7	23.6	2.0	21.4	1.8	13.3	-	64.8 8	3	<0.001	0.42
	U-20	31.1	1.9	24.7	1.4	25.0	1.4	19.2	-	9.69	3	0.021	0.1 7
	Senior	54.9	1.5	45.1	-	-	-	-	-	4.19	1	0.041	0.10

Notes: T1-T4/T8 = birth trimester; S1-S2/S4 = birth semester; % = relative frequency; OR = odds ratio; $x^2=$ chi square; df = degrees of freedom; p = level of significance; Vc = Cramer’s V; CAT = competition category; U-18 = youth category; U-20 = junior category