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. Author manuscript; available in PMC: 2022 Apr 1.
Published in final edited form as: Stat Med. 2021 Feb 10;40(9):2177–2196. doi: 10.1002/sim.8896

TABLE A1.

Gompertz parameters for data generation in simulation study of IPCW regression model

Proportional subdistribution hazards, τ = 365 days
ρ γ Z 1 Z 2 RMTL, years RMTL, days
−2.8 1.546588 1 1 0.30 109.5
−2.9 2.291237 1 0 0.40 146.0
−1.4 1.952647 0 1 0.45 164.25
−1.7 2.879494 0 0 0.55 200.75
Nonproportional subdistribution hazards, τ = 365 days
ρ γ Z 1 Z 2 RMTL, years RMTL, days
−1.7 1.213444 1 1 0.30 109.5
−1.7 1.770851 1 0 0.40 146.0
−1.7 2.096025 0 1 0.45 164.25
−1.7 2.879494 0 0 0.55 200.75

Note: To assess the IPCW model, we generated competing risks data dependent on two binary covariates (Z1, Z2). We set the true conditional difference in RMTL at τ = 365 days, (β1, β2) = {μ1,1z2(τ) − μ1,0z2(τ), (μ1,z11(τ) − μ1,z10(τ)}.

Abbreviations: IPCW, inverse probability of censoring weighting; RMTL, restricted mean time lost.