Table 4. Egger’s regression test for polymorphisms in BER pathway gene.

Gene	Polymorphism	Egger’s test (P > |t|)
XRCC1	rs1799782	0.896
	rs25487	0.248
	rs25489	0.99
	rs3213245	0.497
	rs3547	0.565
	rs915927	0.115
LIG1	rs156641	0.377
	rs20579	0.401
	rs20581	0.388
	rs3730931	0.127
	rs439132	0.589
APEX1	rs1130409	0.006
	rs1760944	0.312
	rs2307486	0.38
PARP1	rs1136410	0.603
OGG1	rs1052133	0.337