Table 3.
Detectable mean differences in rates of SUVR change between treatment groups as a function of within subject correlation, attrition, sample size and power
Within subject correlation | Attrition, % | Sample size | Detectable mean difference | |
Power=0.80 | Power=0.90 | |||
0.3 | 0 | 80(40/40) | 0.037 | 0.042 |
0.3 | 5 | 76(38/38) | 0.038 | 0.044 |
0.3 | 10 | 72(36/36) | 0.039 | 0.045 |
0.3 | 15 | 68(34/34) | 0.040 | 0.047 |
0.5 | 0 | 80(40/40) | 0.031 | 0.036 |
0.5 | 5 | 76(38/38) | 0.032 | 0.037 |
0.5 | 10 | 72(36/36) | 0.033 | 0.038 |
0.5 | 15 | 68(34/34) | 0.034 | 0.039 |
0.8 | 0 | 80(40/40) | 0.020 | 0.023 |
0.8 | 5 | 76(38/38) | 0.020 | 0.024 |
0.8 | 10 | 72(36/36) | 0.021 | 0.024 |
0.8 | 15 | 68(34/34) | 0.021 | 0.025 |