Table 1

Assessment of the size of the treatment effect,a which can be demonstrated with 80% power at the 5% significance level using different sample sizes, where the outcome measure is the average cross-sectional area of three or five tumor tracts or total tumor area

Sample sizeGastrocnemiusRectus femoris
No. of tractsTotal areaNo. of tractsTotal area
3535
60.090.080.380.100.080.20
120.070.060.270.070.060.14
240.050.040.190.050.040.10
480.040.030.140.040.030.07
  • a Mean difference in mm2 between treated and control groups.