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. 2019 Dec 9;5:50. doi: 10.1186/s40798-019-0227-7

Table 6.

Genotype frequencies in liver metabolizers between elite endurance athletes (cyclist, runners) and non-athletes

CYP2D6 genotype GSTT genotype
GG GA AA p value + p value
Elite endurance athletes Cyclists 63 (84.00%) 11 (14.66%) 1 (1.33%) 0.002 54 (72.00%) 21 (28.00%) 0.049
Runners 42 (87.50%) 6 (12.50%) 0 (0.00%) 35 (72.91%) 13 (27.09%)
Non-athletes 76 (62.29%) 44 (36.06%) 2 (1.64%) 70 (57.37%) 52 (42.63%)