Table 4.
Simulation Study; Group Comparison Between A and B With Respect to Dichotomous Response
|
z Valuesb |
Ratesc |
||||
| IDa | 30 Not Subtracted | 30 Subtracted | 30 Not Subtracted | 30 Subtracted | Significant Changed |
| Group comparison between A and B with respect to 20% response | |||||
| 1 | −0.05 | −0.09 | 50 | 66 | 3 |
| 2 | 0.00 | 0.12 | 62 | 76 | 6 |
| 3 | −1.93 | −1.88 | 47 | 63 | 28 |
| 4 | −2.25 | −2.05 | 59 | 73 | 26 |
| Group comparison between A and B with respect to 50% response | |||||
| 1 | 0.06 | 0.01 | 6 | 41 | 8 |
| 2 | 0.15 | 0.08 | 10 | 48 | 11 |
| 3 | −1.32 | −2.17 | 5 | 38 | 51 |
| 4 | −2.04 | −2.15 | 9 | 44 | 32 |
a
ID of simulation study.
b
Mean z value (Wald tests) of the estimated group effect on PC in a logistic model.
c
Mean responder rates.
d
Number of datasets where the results (Wald tests) differ regarding significance (one method: significant effect found, second method: no effect found; number of data sets each time: 100).