Table 1

Fractional distribution (%, upper/lower 95% CI) of birth month by category

Q1Q2Q3Q4
CategorynLower%UpperLower%UpperLower%UpperLower%Upper
Expected24.224.425.725.7
Olympic44 08727.227.62825.325.726.124.324.324.822.322.322.7
Summer36 03027.127.628.125.325.726.224.324.324.822.322.322.8
Winter805726.427.428.324.925.826.823.724.625.621.322.223.1
Ball11 41127.428.229.12525.726.623.724.525.320.821.622.3
Non-ball32 67626.927.427.925.325.726.223.924.324.822.122.623
Team10 16927.528.329.22525.826.723.624.425.320.621.422.2
Individual33 91826.927.427.925.225.726.223.924.324.822.122.623
  • All distributions (Q1%, Q2%, Q3% and Q4%) were significantly different from expected (all p<0.001).