Table 6.
Distribution of the birth quartile according to the classification at the end of the season.
Classification
Quartile
Total
X
2
df
p
V
Odd-ratio
(CI 95%)
Q1
fr (%)
Q2
fr (%)
Q3
fr (%)
Q4
fr (%)
Q1-Q4
Q2-Q4
Q3-Q4
Total
1359
(33.2)
1077
(26.3)
895
(21.8)
766
(18.7)
4097
5.953
6
.428
.027
Four first places
285
(36.4)
194
(24.8)
159
(20.3)
144
(18.4)
782
61.366
3
.000
***
.280
1.979
(1.973-1.986)
1.347
(1.343-1.351)
1.104
(1.101-1.107)
Mid-table classified
815
(32.1)
675
(26.6)
563
(22.2)
485
(19.1)
2538
97.125
3
.000
***
.196
1.680
(1.679-1.681)
1.392
(1.391-1.393)
1.161
(1.160-1.162)
Four last places
259
(33.3)
208
(26.8)
173
(22.3)
137
(17.6)
777
41.754
3
.000
***
.232
1.891
(1.891-1.891)
1.518
(1.518-1.518)
1.263
(1.263-1.263)
Note. Q= quartile; fr= frequency; %= percentage; X
2
=chi square; df =degrees of freedom; p= significance level; V= Cramer's V.
***p < 0.001.