Table 1.

Mapping precision of the stepwise linear mixed model based on WTCCC simulated data

$h^2$	nQTLa	Number of detected causal SNPs				Mapping precision
		0 kb	10 kb	20 kb	30 kb	0 kb	10 kb	20 kb	30 kb
0.25	7.78 (0.345)	5.01 (0.171)	6.22 (0.154)	6.54 (0.154)	6.69 (0.132)	0.65 (0.022)	0.80 (0.019)	0.84 (0.019)	0.86 (0.017)
0.50	18.52 (0.522)	12.22 (0.333)	15.37 (0.222)	15.37 (0.185)	16.67 (0.167)	0.66 (0.018)	0.83 (0.012)	0.87 (0.010)	0.90 (0.009)
0.75	34.22 (0.640)	23.95 (0.376)	29.42 (0.308)	30.80 (0.240)	31.82 (0.205)	0.70 (0.011)	0.86 (0.009)	0.90 (0.007)	0.93 (0.006)

$h^2$: heritability of simulated traits

100 QTL were simulated for all scenarios

^anQTL is the number of significant QTL

Values in parentheses are the corresponding standard errors