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. Author manuscript; available in PMC: 2009 Jul 6.
Published in final edited form as: Genet Epidemiol. 2009 Jul;33(5):432–441. doi: 10.1002/gepi.20396

TABLE I.

P values of the pseudo F-test and Over-dispersion factors (λ) for CGEMS data set.

Unadjusteda
PC-Finderb
EIGENSTRATc
Data set p value λ p value λ p value λ
NHSca vs NHSco 0.104 1.005 -- -- -- --
PLCOca vs PLCOco 0.123 1.025 -- -- -- --
NHSca vs PLCOco <10-3 1.062 0.052 1.007 0.052 1.010
PLCOca vs NHSco <10-3 1.090 0.054 1.020 0.029 1.036
a

P-values for the pseudo F test and over-dispersion factors (λ) for the association test, both tests are not adjusted for PS.

b

P-values for the pseudo F test and over-dispersion factors (λ) for the association test, both tests are adjusted by PCs selected by the PC-Finder.

c

P-values for the pseudo F test and over-dispersion factors (λ) for the association test, both tests are adjusted by the top 10 ranked PCs