Table 4b.
Results for various IPW and TMLE approaches in the plasmode simulation study (with truncation in the propensity score at 0.025 and 0.975)
| Approach | Outcome Model | Treatment Model | Estimate | SE | Bias | RMSE | Finite fitted values* |
|---|---|---|---|---|---|---|---|
| IPW1 | A | NULL | −1.19 | 0.04 | 0.86 | 0.86 | 100% |
| IPW2 | A | C1 | −0.84 | 0.04 | 0.51 | 0.51 | 100% |
| IPW3 | A | C2 | −0.59 | 0.07 | 0.26 | 0.27 | 100% |
| IPW4 | A | C3 | −0.45 | 0.08 | 0.11 | 0.13 | 100% |
| TMLE1 | A | NULL | −1.19 | 0.04 | 0.86 | 0.86 | 100% |
| TMLE2 | A | C1 | −0.84 | 0.04 | 0.51 | 0.51 | 100% |
| TMLE3 | A | C2 | −0.54 | 0.07 | 0.21 | 0.22 | 100% |
| TMLE4 | A | C3 | −0.31 | 0.09 | 0.03 | 0.09 | 100% |
| TMLE5 | A,C1 | NULL | −0.84 | 0.04 | 0.51 | 0.51 | 100% |
| TMLE6 | A,C1 | C1 | −0.84 | 0.04 | 0.51 | 0.51 | 100% |
| TMLE7 | A, C1 | C2 | −0.55 | 0.07 | 0.22 | 0.23 | 100% |
| TMLE8 | A, C1 | C3 | −0.31 | 0.09 | 0.03 | 0.09 | 100% |
| TMLE9 | A, C2 | NULL | −0.58 | 0.05 | 0.25 | 0.26 | 100% |
| TMLE10 | A, C2 | C1 | −0.58 | 0.05 | 0.25 | 0.25 | 100% |
| TMLE11 | A,C2 | C2 | −0.56 | 0.07 | 0.23 | 0.24 | 100% |
| TMLE12 | A, C2 | C3 | −0.33 | 0.08 | 0.01 | 0.08 | 100% |
| TMLE13 | A, C3 | NULL | −0.34 | 0.05 | 0.005 | 0.06 | 100% |
| TMLE14 | A, C3 | C1 | −0.34 | 0.05 | 0.002 | 0.06 | 100% |
| TMLE15 | A, C3 | C2 | −0.33 | 0.08 | 0.000 | 0.06 | 100% |
| TMLE16 | A, C3 | C3 | −0.34 | 0.08 | 0.002 | 0.08 | 100% |
Refers to settings in which the first step of the TMLE returned non-infinite predictions.