Table 2.

Genomie control parameter X of the null SNPs (1,800 families)

	$\lambda \hspace{0.17em}=\hspace{0.17em}\frac{\text{median}\hspace{0.17em}(\text{observed}\hspace{0.17em}\text{test}\hspace{0.17em}\text{statistics})}{\text{median}\hspace{0.17em}(\text{expected}\hspace{0.17em}\text{values})}$
	RFGLS-UN	RFGLS-VC	FGLS	GLS	OLS	GWAF	GEE	QTDT
HomoG	0.998	0.999	0.999	0.998	1.210	0.998	0.999	0.998
HomoGE	0.998	0.999	0.999	0.998	1.399	0.998	0.999	0.998
HetGE	0.999	0.999	0.999	0.998	1.247	0.999	0.999	0.998

λ was calculated using the test statistics from the independent SNPs of the 1,000 simulations each with 10,000 nonassociated SNPs.