Table 2.
Landmark models fit in simulation study.
| Model | Hazard | Label2 |
|---|---|---|
| LM1 | h0τ (t)exp{β(τ)Z(τ) + ζX} | (LM1) |
| h(t|τ,Z(τ), X) | h0(t) exp{θ(τ) + β(τ)Z(τ) + ζX} | (LM2) |
| h0(t) exp{θ(τ) + β0Z(τ) + ω(t − τ)Z(τ) + ζX} | (LM3) | |
| h0(t) exp{θ(τ) + β(τ)Z(τ) + ω(t − τ)Z(τ) + ζX} | (LM4) | |
| LM, V* | h0τ(t) exp{β(τ)Z(τ) + γV*Z(τ) + ζX} | (LSM1) |
| h(t|τ, Z(τ), X,V* | h0(t) exp{θ(τ) + β(τ)Z(τ) + γV*Z(τ) + ζX} | (LSM2) |
| h0(t) exp{θ(τ) + β0Z(τ) + ω(t − τ)Z(τ) + γV*Z(τ) + ζX} | (LSM3) | |
| h0(t) exp{θ(τ) + β(τ)Z(τ) + ω(t − τ)Z(τ) + γV*Z(τ) + ζX} | (LSM4) | |
| LM, Interaction | h0(t) exp{θ(τ) + β(τ)Z(τ) + ζ′X + ϕ′XZ(τ)} | (LMInt2) |
| h(t|τ, Z(τ), X) | h0(t) exp{θ(τ) + β0Z(τ) + ω(t − τ)Z(τ) + ζ′X + ϕ′XZ(τ)} | (LMInt3) |
| h0(t) exp{θ(τ) + β(τ)Z(τ) + ω(t − τ)Z(τ) + ζ′X + ϕ′XZ(τ)} | (LMInt4) |
1
LM: landmark model;
2
(*1): Super model; (*2): Extended super model; (*3): Extended super model, nonproportional hazards; (*4): Extended super model, non-proportional hazards, covariate effects are a function of landmark time