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Table 4 Frequencies of the CYP2C19 polymorphism in recurrent stroke group and the first onset group (n, %)

From: Association between genetic polymorphisms of cytochrome P450 2C19 and the risk of cerebral ischemic stroke in Chinese

Groups CYP2C19*2 genotypes CYP2C19*2 alleles CYP2C19*3 genotypes CYP2C19*3 alleles
AA AG GG A G AA AG GG A G
The recurrent stroke group 19 45 50 83 145 8 24 82 40 188
(n = 114) (16.7) (39.5) (43.9) (36.4) (63.6) (7.0) (21.1) (71.9) (17.5) (82.5)
The first onset group 16 70 99 102 268 4 30 151 38 332
(n = 185) (8.6) (37.8) (53.5) (27.6) (72.4) (2.2) (16.2) (81.6) (10.3) (89.7)
χ2 value 4.387 0.080 2.629 5.155 4.316 1.115 3.852 6.580
P value 0.036 0.778 0.105 0.023 0.038 0.291 0.050 0.010