Case-control association test results for a series of cohort comparisons for g.66493737C>T.

TBE: elite Group race winning Thoroughbreds; TBO: other non-winning Thoroughbreds; TBE>8 f, TBE≤8 f and TBE≤7 f: elite Group race winning Thoroughbreds that won their best (most valuable or highest grade) races over distances>8 f, ≤8 f and ≤7 f. In each case the frequency of the g.66493737-T allele is given. Odds ratios were calculated for the two most significant results. Best-fit model results for genotypic and trend tests for g.66493737C>T association with elite Group race winning performance over distances ≤7 f are also shown.