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Table 2 Simulation results for the test statistic T under the null hypothesis

From: On the impact of relatedness on SNP association analysis

Study \(\bar {T}\) \(\bar {S}^{2}\) ν
HapMap 0.002 (0.037) 1.330 (0.096) 0.992
SFS1 -0.000 (0.037) 1.321 (0.107) 0.992
SFS2 -0.001 (0.037) 1.309 (0.076) 0.999
Sorbs -0.001 (0.037) 1.412 (0.144) 0.999
SFS3 0.001 (0.043) 2.015 (0.166) 0.997
  1. The test statistics \(\bar {T}\) averaged over replicates and SNPs and the average of the empirical variances \(\bar {S}^{2}\) are compared between HapMap, SFS1 (synthetic family study 1), SFS2, Sorbs and SFS3 assuming the null hypothesis and \(R^{2}_{\mathrm {h}}=0.9\). Standard deviations are presented in parentheses. We further provide an estimate of the deflation factor ν for the empirical variance of the effect estimate