Table 1.

5-HTTLPR genotype frequencies by treatment and abstinence at end of treatment and 6-month follow-up

5-HTTLPR genotype
SS
SL
LL
Patch (n = 31)Spray (n = 34)Combined (n = 65)Patch (n = 102)Spray (n = 106)Combined (n = 208)Patch (n = 58)Spray (n = 62)Combined (n = 120)
End of treatment
    Succeeded11 (35%)9 (26%)20 (31%)38 (37%)31 (29%)69 (33%)19 (33%)19 (31%)38 (32%)
    Failed20 (65%)25 (74%)45 (69%)64 (63%)75 (71%)139 (67%)39 (67%)43 (69%)82 (68%)
6 months
    Succeeded8 (26%)6 (18%)14 (21%)21 (21%)23 (22%)44 (21%)8 (14%)9 (14%)17 (14%)
    Failed23 (74%)28 (82%)51 (79%)81 (79%)83 (78%)164 (79%)50 (86%)53 (86%)103 (86%)