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. Author manuscript; available in PMC: 2024 Jun 1.
Published in final edited form as: Biometrics. 2022 Mar 9;79(2):1145–1158. doi: 10.1111/biom.13633

Table 4.

Simulation results under marginal model λik(t) = λ0k(t)exp{0.5Xik + 0.2Zik}, n = 4000, K = 4, ρk = 0.025, σ = 0.1, and the censoring rate is 80%.

β(1) = 0.5
 β(1) = 0.2
θ Method |Bias|
(×102)		 SD
(×10)		 SE
(×10)		 CR RE |Bias|
(×102)		 SD
(×10)		 SE
(×10)		 CR RE
0.2 EPPL 0.53 0.27 0.26 0.93 – 0.39 0.36 0.43 0.96 –
QIF_V 0.53 1.13 1.14 0.95 0.05 0.74 2.40 2.25 0.94 0.02
EQIF 0.52 0.24 0.24 0.94 1.21 0.45 0.30 0.39 0.98 1.39
0.5 EPPL 0.51 0.27 0.26 0.93 – 0.41 0.34 0.43 0.98 –
QIF_V 0.29 1.15 1.14 0.94 0.05 1.70 2.37 2.25 0.94 0.02
EQIF 0.50 0.25 0.25 0.93 1.09 0.50 0.31 0.42 0.98 1.14
2 EPPL 0.45 0.26 0.25 0.93 – 0.45 0.34 0.43 0.98 –
QIF_V 0.78 1.14 1.13 0.95 0.05 2.87 2.36 2.25 0.94 0.02
EQIF 0.44 0.26 0.25 0.93 1.00 0.50 0.34 0.43 0.98 0.99