Table 2 Expected patient numbers in the discrete failure time example for time to death stratified by previously experienced non-fatal event (“Direct effect bias”section)
Stratum | Group | Death at t 2 | Alive at t 2 | At risk | OR |
|---|---|---|---|---|---|
Non-fatal event at t 1 | Treatment | 120 | 180 | 300 | 1 |
Placebo | 240 | 360 | 600 | ||
No non-fatal event at t 1 | Treatment | 120 | 480 | 600 | 1 |
Placebo | 60 | 240 | 300 | ||
All patients (unstratified) | Treatment | 240 | 660 | 900 | 0.73 |
Placebo | 300 | 600 | 900 |