Table 4. Associations of haplotypes of EGFR (rs6950826, rs2227983) and SYNE2 (rs4027405, rs1890908 and rs8010699) SNPs with p21 expression.

Haplotypes	Positive (2n)	Negative (2n)	OR (95% CI)	P value
EGFR
G-A	76	308	Ref.	1.16 × 10−4
A-G	88	164	0.46 (0.32–0.86)	2.43 × 10−5
Othersa	50	125	0.62 (0.41–0.93)	0.0219
SYNE2
A-G-G	153	486	Ref.	3.53 × 10−3
G-A-A	45	71	0.49 (0.33–0.75)	8.63 × 10−4
Othersb	16	39	0.76 (0.41–1.40)	0.383

OR = odds ratio, 95% CI = 95% confidence interval, Ref. =reference.

^aOthers include haplotypes G-G and A-A.

^bOthers include haplotypes A-G-A and G-G-G.