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Treatment effect estimates for 96±5 week CD4 counts for ACTG 175
| Estimate | SE | |
|---|---|---|
| New method | 57.24 | 10.20 |
| IWCC | 54.69 | 11.79 |
| ANCOVA | 64.54 | 9.33 |
| Paired t test | 67.14 | 9.23 |
Note. Standard errors for the new method and the IWCC estimate were obtained using the sandwich approach. ANOVA denotes ordinary analysis of covariance with no interaction term. Standard errors for the popular estimators based on complete cases were obtained from standard formulæ.
