Nominally statistically significant associations of @ SLC@A@ polymorphisms were observed : ( @ ) with rs@ at @ months , overall ( -LSB- c. @T > G ; p.Ser@Ala -RSB- , OR = @ , @ % CI = @-@ @ , p = @ ) , and among those randomized to nicotine replacement therapy ( NRT ) ( OR = @ , @ % CI = @-@ @ , p = @ ) ; and ( @ ) with rs@ ( c@-@A > T ) among those randomized to varenicline ( OR = @ , @ % CI = @-@ @ , p = @ , OR = @ , @ % CI = @-@ @ , p = @ ) at end of treatment and @ months .