Abstinence rates for six SNPs in
DRD1 with adjusted gene × NMR interaction
P-values < 0.05. Data shown across four genotype/nicotine metabolizer groups:
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Normal metabolizers, carrying two major alleles (i.e., WT) – Unlined, White bars
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Normal metabolizers, carrying at least one minor allele (i.e., Variant) – Unlined, Grey bars
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Slow metabolizers, carrying two major alleles (i.e., WT) – Lined, White bars
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Slow metabolizers, carrying at least one minor allele (i.e., Variant) – Lined, Grey bars