Skip to main content
. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Genet Epidemiol. 2010 Jan;34(1):100–105. doi: 10.1002/gepi.20430

Table 2.

Derived significance thresholds for the Affymetrix 500K data.

Chromo-
some
Number
of SNPs
Permutation simpleM Keff Bonferroni




Meff αp Meff αp w=20 αp αp
1 30655 17011 3.02E-06 18079 2.84E-06 20980 2.44E-06 1.63E-06
2 32107 18474 2.78E-06 19193 2.67E-06 22041 2.33E-06 1.56E-06
3 26573 15279 3.36E-06 15704 3.27E-06 18054 2.84E-06 1.88E-06
4 24773 13534 3.79E-06 14363 3.57E-06 16603 3.09E-06 2.02E-06
5 25414 12829 4.00E-06 14941 3.43E-06 17209 2.98E-06 1.97E-06
6 25552 14610 3.51E-06 14638 3.50E-06 17077 3.00E-06 1.96E-06
7 20655 12108 4.24E-06 12470 4.11E-06 14243 3.60E-06 2.42E-06
8 21494 12268 4.18E-06 12749 4.02E-06 14617 3.51E-06 2.33E-06
9 18140 9519 5.39E-06 11194 4.58E-06 12737 4.03E-06 2.76E-06
10 22293 12681 4.04E-06 13017 3.94E-06 14980 3.42E-06 2.24E-06
11 20621 10719 4.79E-06 11931 4.30E-06 13654 3.76E-06 2.42E-06
12 19487 10214 5.02E-06 11626 4.41E-06 13326 3.85E-06 2.57E-06
13 14859 8070 6.36E-06 8766 5.85E-06 10073 5.09E-06 3.36E-06
14 12151 6592 7.78E-06 7438 6.90E-06 8439 6.08E-06 4.11E-06
15 10997 6832 7.51E-06 7112 7.21E-06 7945 6.46E-06 4.55E-06
16 11808 7067 7.26E-06 7692 6.67E-06 8539 6.01E-06 4.23E-06
17 8900 5371 9.55E-06 5743 8.93E-06 6372 8.05E-06 5.62E-06
18 11421 7134 7.19E-06 6981 7.35E-06 7890 6.50E-06 4.38E-06
19 5062 3052 1.68E-05 3437 1.49E-05 3762 1.36E-05 9.88E-06
20 9739 5851 8.77E-06 6024 8.51E-06 6744 7.61E-06 5.13E-06
21 5668 3084 1.66E-05 3439 1.49E-05 3854 1.33E-05 8.82E-06
22 4844 3042 1.69E-05 3223 1.59E-05 3575 1.43E-05 1.03E-05

genome-
wide
383213 208408 2.46E-07 229760 2.23E-07 262714 1.95E-07 1.30E-07

The permutation thresholds were calculated using 10,000 random shuffles.

The experiment-wise error rates for each chromosome and the genome-wide adjustment was set at αe = 0.05.

αp: point-wise error rate.

Meff: the effective number of independent tests.

w=20: window size is set equal to 20.