Table 5.
Overlapping coefficient, standardized overlapping coefficient, nominal number of patients to be borrowed, and power parameter (or exponent) in each stratum for arm B
| PS stratum | Total | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| Current study (n) | 80 | 80 | 80 | 80 | 80 | 400 |
| US registry (n) | 320 | 279 | 253 | 210 | 130 | 1192 |
| Overlapping coefficient | 0.81 | 0.79 | 0.79 | 0.84 | 0.77 | |
| Standardized overlapping coefficient (%) | 20 | 20 | 20 | 21 | 19 | 100 |
| Patients borrowed (= 100 × Std. Overlap. Coef.) | 20 | 20 | 20 | 21 | 19 | 100 |
| α (or λ) [= Patients Borrowed/US Registry (n)] | 0.06 | 0.07 | 0.08 | 0.10 | 0.15 | |