Chunk #18 — METHODS — Statistical Analyses

Source

CHRNB3 is more strongly associated with Fagerström test for cigarette dependence-based nicotine dependence than cigarettes per day: phenotype definition changes genome-wide association studies results.

Embedded

yes

Text

The QQ-Plot of the association between nicotine dependence (FTCD ≥4) and the 948,658 SNPs may be seen in Figure 1 of the supplementary material. The lambda value is 1.02, reflecting adequate control of population stratification using self-reported ethnicity. The Manhattan plots for the two analyses are shown in Figure 2 of the supplementary material.