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. Author manuscript; available in PMC: 2016 Dec 27.
Published in final edited form as: Biometrics. 2016 Feb 22;72(4):1145–1154. doi: 10.1111/biom.12499

Table 1.

Simulation results on estimation and inference in finite p cases

Case n ρ ξ1 ξ2 ξ3 ξ4
A 0 True 0.062 0.062 0.124 0.255

200 Estimate 0.066 0.062 0.123 0.251
Coverage 0.980 0.960 0.940 0.900
Rejection 0.06 0.69 1
400 Estimate 0.064 0.063 0.124 0.254
Coverage 0.950 0.940 0.940 0.950
Rejection 0.05 0.92 1

0.4 True 0.181 0.181 0.209 0.270

200 Estimate 0.182 0.183 0.212 0.271
Coverage 0.930 0.960 0.960 0.960
Rejection 0.05 0.46 1
400 Estimate 0.182 0.182 0.211 0.272
Coverage 0.930 0.970 0.960 0.950
Rejection 0.04 0.63 1

0.8 True 0.265 0.265 0.272 0.289

200 Estimate 0.269 0.270 0.278 0.295
Coverage 0.960 0.940 0.950 0.950
Rejection 0.05 0.30 0.85
400 Estimate 0.268 0.267 0.275 0.292
Coverage 0.970 0.990 0.980 0.970
Rejection 0.03 0.34 0.97

B 0 True 0.058 0.058 0.116 0.239

200 Estimate 0.060 0.059 0.117 0.236
Coverage 0.970 0.980 0.910 0.930
Rejection 0.07 0.69 1
400 Estimate 0.060 0.059 0.117 0.236
Coverage 0.950 0.940 0.950 0.940
Rejection 0.03 0.89 1

0.4 True 0.174 0.174 0.202 0.259

200 Estimate 0.176 0.176 0.203 0.260
Coverage 0.940 0.940 0.920 0.960
Rejection 0.08 0.46 1
400 Estimate 0.174 0.175 0.202 0.262
Coverage 0.940 0.950 0.960 0.950
Rejection 0.04 0.59 1

0.8 True 0.258 0.258 0.264 0.281

200 Estimate 0.262 0.261 0.271 0.287
Coverage 0.930 0.940 0.950 0.960
Rejection 0.10 0.30 0.86
400 Estimate 0.261 0.260 0.268 0.284
Coverage 0.950 0.970 0.940 0.980
Rejection 0.04 0.26 0.95

True: true value of ξ; Estimate: average of the estimated SII; Coverage: coverage rate of the 95% bootstrap confidence intervals; Rejection: average rejection rate for the permutation test comparing ξj to ξ1