Table 1.

Power analysis for the relationship between pre-therapy PET (FMISO and FDG) and patient outcome. FU= length of follow-up; P=power with adjustment for PET confounder; P0=power obtained if confounder not incorporated; PM=effect of 15% measurement error on covariates. Median DFS (first two rows) is 3 years and median OS (last two rows) is assumed to be 6 years.

N	b	exp(b)-1	FU	P	P0	PM
60	0.5	0.65	2-years	0.90	0.87	0.85
			7-years	0.95	0.92	0.91
60	0.5	0.65	2-years	0.80	0.76	0.73
			7-years	0.91	0.88	0.86