Table 2Estimates of 30-Day Survival Probabilities and ATEa

IPWAugmented IPW
RMLRML2RCALRMLRML2RCAL
μ10.636 ± 0.0260.660 ± 0.0490.634 ± 0.0230.636 ± 0.0210.646 ± 0.0350.635 ± 0.021
μ00.690 ± 0.0170.691 ± 0.0190.687 ± 0.0170.691 ± 0.0160.693 ± 0.0180.688 ± 0.016
ATE−0.054 ± 0.031−0.031 ± 0.053−0.053 ± 0.029−0.055 ± 0.025−0.047 ± 0.039−0.053 ± 0.025

Abbreviations: ATE, average treatment effect; IPW, inverse probability weighting.

aEstimate ±2 × SE, including nominal SEs for IPW. RML denotes μ^1(m^RWL1, π^RML1), and RML2 denotes the variant witb m^RWL1 and m^RWL1replaced by the fitted values obtained by refitting OR and PS models only including the variables selected from the corresponding Lasso estimation. RCAL denotes μ^1(m^RWL1, π^RCAL1).

From: Developing and Testing New Methods for Estimating Treatment Effectiveness in Observational Studies Using High-Dimension Data

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Developing and Testing New Methods for Estimating Treatment Effectiveness in Observational Studies Using High-Dimension Data [Internet].
Tan Z, Gerhard T, Sun B.
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