Fast and Accurate Genome-Wide Association Test of Multiple Quantitative Traits

Table 1

Type I error of multitrait tests ( divided by the nominal significance level . The MAFs of SNP are 0.1 and 0.2 in the two populations, respectively. is the -DF omnibus Wald test; and are the 1-DF Wald tests assuming a common or common scaled effect. are the corresponding GEE-based -DF omnibus test and 1-DF tests assuming a common effect or common scaled effect.

	0.69	0.79	0.89	0.67	0.79	0.89
	0.74	0.85	0.93	0.71	0.83	0.92
	0.74	0.85	0.89	0.71	0.83	0.92
	1.04	1.00	1.00	1.03	1.01	1.00
	0.98	0.99	1.01	0.97	0.99	1.00
	0.96	0.98	1.00	0.96	0.98	0.99