Allele and genotype frequency distributions for the 10 investigated single nucleotide polymorphisms (SNPs) in all elite youth soccer players (ESP) and control participants (CON), and in pre- and post-peak height velocity (PHV) ESP.

All SNPs were analysed using a co-dominant model (e.g. AA vs. Aa vs. aa) except when the minor allele frequency (MAF) for a European population [39] was <0.25, in which case a dominant model (e.g. AA vs Aa+aa) was used instead. P-values are presented for allele and genotype frequency distribution χ2 models (model 1: CON vs. ESP; and model 2: CON vs. pre-PHV ESP vs. post-PHV ESP) and post-hoc between group differences are identified (P < 0.05), i.e. * difference between ESP and CON; ** difference between post-PHV ESP and CON; *** difference between pre-PHV ESP and CON; † difference between post- and pre-PHV ESP.