Table 2

Summary table of 1000 simulations with 20% missing weekly exposure in Alberta and 10% in Quebec, true log (IRR)=1.187

Mean estimated log (IRR)Bias (SE)Embedded ImageCoverage of 95% CI
Available case1.3110.1241 (0.0091)0.3130.949
Mean imputation1.1940.0066 (0.0091)0.2870.949
Multiple imputation1.1940.0067 (0.0091)0.2870.950
LOCF1.2010.0137 (0.0091)0.2870.946
Best/Worst1.072−0.1150 (0.0091)0.3090.906
Bootstrap1.2460.0587 (0.0092)0.2940.939
  • LOCF, last observation carried forward.