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Table 2 Hardy-Weinberg equilibrium test of four genotypes

From: Joint associations of folate, homocysteine and MTHFR, MTR and MTRR gene polymorphisms with dyslipidemia in a Chinese hypertensive population: a cross-sectional study

Genotype Observed frequency Expected frequency χ 2 P
MTHFR C677T
 CC 108 (25.4) 107.3 (25.2) 0.021 0.885
 CT 211 (49.6) 212.5 (50.0)
 TT 106 (24.9) 105.3 (24.8)
MTHFR A1298C
 AA 299 (70.4) 296.5 (69.8) 0.759 0.384
 AC 112 (26.4) 116.9 (27.5)
 CC 14 (3.3) 11.5 (2.7)
MTR A2756G
 AA 348 (81.9) 347.9 (81.9) 0.006 0.937
 AG 73 (17.2) 73.3 (17.2)
 GG 4 (0.9) 3.9 (0.9)
MTRR A66G
 AA 137 (32.2) 141.2 (33.2) 0.708 0.400
 AG 216 (50.8) 207.5 (48.8)
 GG 72 (16.9) 76.2 (17.9)