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Logo of ijbiostatThe International Journal of BiostatisticsThe International Journal of BiostatisticsSubmit to The International Journal of BiostatisticsSubscribe
 
From:
Published online 2010 August 1. doi: 10.2202/1557-4679.1260

Table 1:

Estimator performance for simulations 1 and 2 when the initial estimator of Q0 is correct and misspecified. Results are based on 1000 samples of size n = 1000.

Q0correctly estimated
Q0incorrectly estimated
avebiasvarMSEavebiasvarMSE
Simulation 1
  MLE1.0030.0030.0050.0053.0752.0750.0304.336
  IPTW1.0060.0060.0090.0091.0060.0060.0090.009
  aug-IPTW1.0030.0030.0050.0051.0050.0050.0100.010
  TMLElog0.993−0.0070.0050.0050.993−0.0070.0060.006
  TMLElin0.993−0.0070.0050.0050.993−0.0070.0060.006

Simulation 2
  MLE1.0010.0010.0090.0094.6533.6530.02513.370
  IPTW1.5540.5540.1790.4851.5540.5540.1790.485
  aug-IPTW0.999−0.0010.0230.0231.7080.7080.2980.798
  TMLElog0.989−0.0110.0370.0370.722−0.2780.2140.291
  TMLElin0.986−0.0140.0420.042−0.263−1.2632.5814.173