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Table 1 Effect of minor alleles on smoking dependence

From: CHRNA5 and CHRNA3 polymorphism and lung cancer susceptibility in Palestinian population

Genotype No. cigarettes/day (mean ± SD) P value
CHRNA5 (c.1192G > A) rs16969968
 GG 25.54 ± 11.6 0.006
 GA 36.04 ± 12.2
 AA 40.0 ± 15.81
CHRNA3 (c.65C > T) rs1051730
 CC 24.86 ± 12.97 0.006
 CT 33.00 ± 10.36
 TT 39.17 ± 15.62