Skip to main content
. 2012 Mar 16;7(3):e33513. doi: 10.1371/journal.pone.0033513

Table 2. QTDT analysis with age at onset of daily smoking as quantitative variable.

QTDT Total1 QTDT Orthogonal1
SNP N without rs169699682 with rs169699682 N without rs169699682 with rs169699682
rs880395 1288 0.02 0.02 212 0.08 0.08
rs7164030 1289 0.02 0.02 214 0.08 0.08
rs16969968 1288 0.25 - 174 0.52 -
rs578776 1289 0.17 0.18 218 0.66 0.66
rs3743078 1289 0.17 0.19 192 0.14 0.13
rs11634351 1289 0.007 0.006 188 0.03 0.04
rs17487514 1288 0.007 0.006 146 0.004 0.005
rs1996371 1288 0.003 0.002 186 0.02 0.03
rs11857532 1287 0.02 0.02 245 0.02 0.02
rs922692 1288 0.003 0.003 183 0.02 0.03
1

Age at interview in quartiles, gender, first principal component of stratification (pc1), parental smoking and parental drinking were included as covariates.

2

Nominal P values are shown uncorrected for multiple testing. The Bonferroni-corrected significance threshold is P = 0.005.