Table 1:

Comparison of demographic and clinicopathologic features between recurrent tumor group and posttreatment changes group

Characteristic	Patient Group		P Value
	Recurrent Tumor	Posttreatment Changes
Mean age (y)	58.2 (range, 30–77)	63.2 (range, 44–78)	.288
Sex (M:F)	4:9	14:6	.038a
Clinical suspicion of tumor recurrenceb	60% (12)	0.7% (1)	.003a
Mean ROI size (mm2)	170.59 ± 190.68	152.15 ± 203.65	.773
Interval between treatment and imaging (mo)	15.1 ± 16.0	10.4 ± 9.5	.342

^aFisher exact test.

^bNumber of patients in parentheses.