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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Stat Methods Med Res. 2019 Feb 25;29(1):243–257. doi: 10.1177/0962280219831725

Table 1.

Summary statistics of the ϕadj(t) estimators under scenario I and II for 80% censoring and an equal number of cases and controls. Bias: absolute difference between the true value of ϕadj(t) and the mean of the point estimator. ESD: empirical standard deviation. ASE: mean of asymptotic-based standard error estimates. CR pointwise: coverage rate of 95% pointwise confidence intervals. CR: coverage rate of 95% simultaneous confidence bands.

Scenario I: binary U Scenario II: continuous U
Age ϕadj(t) Φadj(t) Age ϕadj(t) Φadj(t)
30 0.509 0.507 30 0.512 0.510
50 0.491 0.486 50 0.497 0.492
70 0.462 0.450 70 0.473 0.463
Age ϕ^adj+ ϕ^adj ϕ^adjw Age ϕ^adj+ ϕ^adj ϕ^adjw
Bias 30 0.000 −0.001 0.000 Bias 30 −0.001 −0.001 0.000
50 0.000 −0.001 0.000 50 0.000 −0.001 0.000
70 0.001 −0.001 0.000 70 0.001 −0.002 0.000
ESD 30 0.025 0.030 0.025 ESD 30 0.027 0.032 0.026
50 0.027 0.031 0.025 50 0.027 0.031 0.026
70 0.030 0.043 0.028 70 0.029 0.038 0.028
ASE 30 0.027 0.029 0.026 ASE 30 0.027 0.030 0.026
50 0.027 0.030 0.026 50 0.027 0.030 0.026
70 0.030 0.038 0.028 70 0.029 0.036 0.027
CR(%) pointwise 30 95.7 95.5 95.4 CR(%) pointwise 30 94.8 94.0 94.3
50 95.1 94.8 95.1 50 94.6 95.3 94.9
70 95.4 93.5 95.4 70 94.8 93.9 94.7
CR(%) 20:70 95.2 94.1 94.8 CR(%) 20:70 93.9 93.4 94.0