Skip to main content
. Author manuscript; available in PMC: 2022 Dec 20.
Published in final edited form as: Stat Med. 2021 Sep 22;40(29):6707–6722. doi: 10.1002/sim.9207

TABLE 1.

Simulation results with independent censoring.

α1 α2 ω(β*,β^)
N Bias SD SE CP Bias SD SE CP Mean SD
g(t) = exp(t)
S1. Linear case
GMRL 2000 0.001 0.082 0.088 95.8 0.006 0.086 0.088 95.0 6.90 3.07
PLSI GMRL 2000 0.001 0.082 0.088 96.0 0.006 0.086 0.089 95.2 7.41 3.38
GMRL 4000 0.001 0.063 0.062 94.2 0.001 0.062 0.062 95.6 4.74 1.93
PLSI GMRL 4000 0.001 0.063 0.062 94.4 0.001 0.062 0.062 96.0 4.87 1.96
S2. Sine curve case
GMRL 2000 −0.001 0.084 0.080 93.4 0.003 0.078 0.081 96.4 3.63 1.53
PLSI GMRL 2000 0.003 0.083 0.079 93.2 0.003 0.076 0.079 93.2 3.21 1.30
GMRL 4000 0.003 0.056 0.056 94.8 −0.005 0.058 0.057 94.4 2.60 1.12
PLSI GMRL 4000 0.003 0.055 0.055 95.4 −0.005 0.057 0.056 93.8 2.31 0.98
S3. Quadratic case
GMRL 2000 −0.005 0.088 0.087 95.8 −0.005 0.087 0.087 95.0 75.67 31.17
PLSI GMRL 2000 −0.004 0.088 0.086 95.2 −0.008 0.087 0.086 94.8 11.43 5.20
GMRL 4000 −0.001 0.062 0.061 93.2 −0.004 0.063 0.061 94.6 72.02 30.85
PLSI GMRL 4000 0.001 0.061 0.060 94.2 −0.005 0.062 0.061 93.6 8.01 3.58
g(t) = t
S1. Linear case
GMRL 2000 0.002 0.107 0.103 93.3 −0.010 0.108 0.103 94.1 9.77 4.15
PLSI GMRL 2000 0.002 0.107 0.103 92.7 −0.011 0.108 0.103 93.7 10.76 4.99
GMRL 4000 −0.002 0.076 0.074 94.2 0.003 0.074 0.074 94.8 6.82 2.94
PLSI GMRL 4000 −0.002 0.076 0.074 94.2 0.002 0.074 0.074 94.6 7.14 3.21
S2. Sine curve case
GMRL 2000 0.001 0.259 0.242 93.4 0.016 0.257 0.241 92.8 6.64 2.76
PLSI GMRL 2000 0.001 0.258 0.241 93.8 0.016 0.255 0.239 93.4 6.45 3.05
GMRL 4000 0.001 0.174 0.176 95.2 0.001 0.174 0.176 94.8 4.57 1.90
PLSI GMRL 4000 −0.001 0.174 0.175 95.4 0.002 0.173 0.175 94.6 4.15 1.80
S3. Quadratic case
GMRL 2000 −0.006 0.053 0.052 93.8 0.001 0.054 0.052 94.2 66.37 35.71
PLSI GMRL 2000 −0.002 0.050 0.050 94.0 0.002 0.052 0.050 94.4 9.35 4.83
GMRL 4000 −0.003 0.039 0.037 93.0 −0.002 0.038 0.037 94.0 65.54 34.92
PLSI GMRL 4000 0.001 0.037 0.035 92.8 0.001 0.037 0.035 93.8 6.19 3.00

GMRL: generalized mean residual life model; PLSI GMRL: partially linear single-index generalized mean residual life model; SD: sample standard deviation; SE: mean of estimated standard error; CP: empirical coverage probability of 95% confidence interval; ωβ*,β^ was calculated by arccos β*,β^/β^β*; Censoring rate was 10%.