Table 2 The genotype and allele distribution of EGFR polymorphisms in ACS patients and controls

R497K

   genotypes

   Arg/Arg

45 (21.4)

32 (16.8)

1.00 (Ref)

1.00 (Ref)

   Arg/Lys

107 (51.0)

79 (41.4)

1.04 (0.61–1.78)

1.07 (0.62–1.85)

   Lys/Lys

58 (27.6)

80 (41.9)

1.94 (1.10–3.41)

1.98 (1.12–3.49)

   alleles

   Arg allele frequency

197 (46.9)

143 (37.4)

1.00 (Ref)

1.00 (Ref)

   Lys allele frequency

223 (53.1)

239 (62.6)

1.48 (1.11–1.96)

1.49 (1.12–1.98)

(CA)_n repeats

Both (CA)_n repeats < 20

35 (16.7)

33 (17.3)

1.00 (Ref)

1.00 (Ref)

Any (CA)_n repeats ≥ 20

175 (83.3)

158 (82.7)

0.96 (0.57–1.61)

0.97 (0.58–1.64)