Table 1. Percentage of players born in each of the four quarters (Q) of the year along each category.
Odds ratios (OR) (and 95% confidence intervals) are shown, examining birth-date distributions in relation to Q4 for each age-category (U14, U16, U18) and overall (Total).
| U14 | U16 | U18 | Total | |
|---|---|---|---|---|
| Q1 | 52.6 | 50.0 | 40.0 | 47.7 |
| Q2 | 26.3 | 36.8 | 31.4 | 31.5 |
| Q3 | 18.4 | 7.9 | 17.1 | 14.4 |
| Q4 | 2.6 | 5.3 | 11.4 | 6.3 |
| χ2 | 21.242 | 23.442 | 7.792 | 48.119 |
| df | 3 | 3 | 3 | 3 |
| p | <0.001 | <0.001 | 0.052 | <0.001 |
| ORQ1/Q4 | 20.23 (5.82–70.27) | 9.43 (3.85–23.09) | 3.51 (1.82–6.78) | 7.57 (3.3–17.38) |
| ORQ2/Q4 | 10.12 (2.83–36.19) | 6.94 (2.79–17.25) | 2.75 (1.4–5.42) | 5 (2.13–11.76) |
| ORQ3/Q4 | 7.08 (1.93–25.94) | 1.49 (0.5–4.48) | 1.5 (0.71–3.17) | 2.29 (0.9–5.84) |
Abbreviations: df: degrees of freedom; p: level of signification.