Table 9.
Relation between study power and effectiveness
| Effectiveness | ||||
|---|---|---|---|---|
| Survival benefit > 3 months | Survival benefit < 3 months, unknown magnitude or no benefit | Total | ||
| Study power | Adequately powered | 6 | 2 | 8 |
| Underpowered | 0 | 2 | 2 | |
| Total | 6 | 4 | 10 | |
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