Table 1.

(a) Comparison of cSDH (chronic subdural hematoma) thickness/volume before and after MMAE (middle meningeal artery embolization) in relation to cSDH cause and architecture type, using paired t-test. p < 0.05 was considered statistically significant. (b) Comparison of cSDH thickness/volume before and after MMAE with regards to cSDH cause and architecture type, using Wilcoxon signed-rank test. p < 0.05 was considered statistically significant.

(a)
Thickness (T) and Volume (V) at Admission (0) and at Interval Follow-Up	T-Test Significance (p < 0.05)
	cSDH Cause		cSDH Architecture
	Spontaneous	Traumatic	Non-Mature	Mature
T 0—at 1–3 months (mm)	<0.001	<0.001	<0.001	<0.001
V 0—at 1–3 months (cm3)	<0.001	<0.001	<0.001	<0.001
T 0—at 3–6 months (mm)	<0.001	<0.001	<0.001	<0.001
V 0—at 3–6 months (cm3)	0.001	<0.001	<0.001	<0.001
T 0—at 6–12 months (mm)	<0.001	<0.001	<0.001	0.025
V 0—at 6–12 months (cm3)	<0.001	<0.001	<0.001	0.003
(b)
Thickness (T) and Volume (V) at Admission (0) and at Interval Follow-Up	Wilcoxon Signed-Rank Test Significance (p < 0.05)
	cSDH Cause		cSDH Architecture
	Spontaneous	Traumatic	Non-Mature	Mature
T 0—at 1–3 months (mm)	<0.001	<0.001	<0.001	<0.001
V 0—at 1–3 months (cm3)	<0.001	<0.001	<0.001	<0.001
T 0—at 3–6 months (mm)	0.012	<0.001	0.008	0.001
V 0—at 3–6 months (cm3)	0.012	<0.001	0.008	0.001
T 0—at 6–12 months (mm)	0.002	0.068	0.008	0.018
V 0—at 6–12 months (cm3)	0.002	0.068	0.008	0.018