Table 2.

Results 1: RT strata

			Malignant progression		P-value	Common OR, 95%-CI, p-value
			No	Yes
No RT	ASL	Negative	9	0	0.019
		Positive	3	4
RT	ASL	Negative	18	3	0.043
		Positive	3	4
Total	ASL	Negative	27	3	0.002	15, 2.6–87.7, 0.003
		Positive	6	8

RT, radiotherapy; ASL, arterial spin labeling; OR, odds ratio