Figure 3.

The IL-6 polymorphism (3a – genotype frequencies, 3b – allele frequencies) in athletes and controls

¹χ² = 14.01, d.f. = 2, p < 0.001 for genotype frequency in controls vs. swimmers.

²χ² = 4.16, d.f. = 1, p < 0.05 for CC genotype frequency in controls vs. swimmers.

³χ² = 18.81, d.f. = 2, p < 0.001 for genotype frequency in runners vs. swimmers.

⁴χ² = 8.15, d.f. = 1, p < 0.001 for CC genotype frequency in runners vs. swimmers.

⁵χ² = 13.75, d.f. = 1, p < 0.001 for allele frequency in controls vs. swimmers.

⁶χ² = 18.43, d.f. = 1, p < 0.001 for allele frequency in runners vs. swimmers.