Table 3 Prediction accuracy in simulation studies in which the phenotype is associated with SNPs only (heritability = 0.05).
Distribution of the true SNP effects | Prediction models | Number of true susceptibility variants | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
100 | 200 | 500 | 2000 | 5000 | |||||||
Mean (SE) PCC | Powera | Mean (SE) PCC | Powera | Mean (SE) PCC | Powera | Mean (SE) PCC | Powera | Mean (SE) PCC | Powera | ||
Laplace distribution | STMGP | 0.0594 (0.0243) | 0.85 | 0.0440 (0.0311) | 0.65 | −0.0044 (0.0215) | 0.15 | 0.0143 (0.1939) | 0.15 | −0.0028 (0.0135) | 0.00 |
PRS | 0.0089 (0.0240) | 0.15 | 0.0094 (0.0187) | 0.10 | −0.0070 (0.0208) | 0.15 | 0.0059 (0.0173) | 0.05 | −0.0017 (0.0133) | 0.05 | |
GBLUP | 0.0118 (0.0159) | 0.05 | 0.0080 (0.0155) | 0.00 | 0.0067 (0.0210) | 0.15 | 0.0149 (0.0013) | 0.05 | 0.0160 (0.0142) | 0.10 | |
SBLUP | 0.0048 (0.0140) | 0.00 | 0.0100 (0.0137) | 0.00 | 0.0083 (0.0198) | 0.10 | 0.0142 (0.0129) | 0.05 | 0.0111 (0.0193) | 0.10 | |
BayesR | 0.0391 (0.0494) | 0.65 | 0.0264 (0.0273) | 0.30 | 0.0073 (0.0234) | 0.15 | 0.0144 (0.0142) | 0.10 | 0.0109 (0.0176) | 0.10 | |
Ridge | 0.0052 (0.0146) | 0.05 | 0.0049 (0.0155) | 0.00 | 0.0104 (0.0216) | 0.15 | 0.0085 (0.0132) | 0.05 | 0.0072 (0.0172) | 0.00 | |
Normal distribution | STMGP | 0.0475 (0.0238) | 0.70 | 0.0140 (0.0170) | 0.10 | 0.0082 (0.0197) | 0.15 | 0.0112 (0.0071) | 0.10 | 0.0040 (0.0175) | 0.05 |
PRS | 0.0028 (0.0207) | 0.05 | 0.0054 (0.0191) | 0.15 | 0.0017 (0.0185) | 0.05 | −0.0011 (0.0189) | 0.05 | 0.0031 (0.0146) | 0.10 | |
GBLUP | 0.0120 (0.0135) | 0.05 | 0.0103 (0.0171) | 0.05 | 0.0133 (0.0147) | 0.10 | 0.0127 (0.0199) | 0.10 | 0.0130 (0.0154) | 0.10 | |
SBLUP | 0.0117 (0.0177) | 0.15 | 0.0109 (0.0167) | 0.05 | 0.0057 (0.0145) | 0.10 | 0.0068 (0.0155) | 0.00 | 0.0116 (0.0127) | 0.05 | |
BayesR | 0.0239 (0.0271) | 0.35 | 0.0147 (0.0185) | 0.10 | 0.0073 (0.0168) | 0.10 | 0.0108 (0.0194) | 0.05 | 0.0092 (0.0133) | 0.05 | |
Ridge | 0.0144 (0.0162) | 0.20 | 0.0135 (0.0170) | 0.05 | 0.0083 (0.0185) | 0.00 | 0.0100 (0.0197) | 0.05 | 0.0075 (0.0187) | 0.00 |