Table 4.
Effect Size | 20% | 30% | 40% | 50% | 60% |
---|---|---|---|---|---|
80% power | 258 | 119 | 68 | 44 | 31 |
85% power | 295 | 136 | 78 | 51 | 36 |
90% power | 346 | 159 | 92 | 59 | 42 |
Effect size was defined as the per cent reduction of the observed mean change from baseline to 6 months.