Multimodality treatment for brain arteriovenous malformation in Mainland China: design, rationale, and baseline patient characteristics of a nationwide multicenter prospective registry

Table 2 Baseline characteristics of included and excluded AVMs in the MATCH study

Characteristics	Included	Excluded	P value
Baseline demographic data	N = 3241	N = 412
Sex, male, n (%)	1911 (59.0)	240 (58.3)	0.782
Age (years)
Mean ± SD	28.4 ± 14.6	28.3 ± 12.2	0.831
Baseline clinical data^a	N = 3241	N = 371
Onset manifestation
Hemorrhage, n (%)	1984 (61.2)	226 (60.9)	0.911
Seizure, n (%)	754 (23.3)	84 (22.6)	0.858
Admission mRS
Median, IQR	1 (1, 2)	1 (0, 2)	0.788
Baseline imaging data^b	N = 3241	N = 316
Location, supratentorial, n (%)	2844 (87.7)	281 (88.9)	0.542
AVM maximum diameter (cm)
Mean ± SD	3.4 ± 1.9	3.3 ± 2.0	0.857
Eloquence, n (%)	1794 (55.3)	180 (56.9)	0.583
Deep venous drainage, n (%)	1284 (39.6)	122 (38.6)	0.726
Spetzler-Martin Grade			0.848
I-III	2694 (83.1)	264 (83.5)
IV-V	547 (16.9)	52 (16.5)

AVM Arteriovenous Malformation, IQR Interquartile Range, N Denominator, n numerator, MATCH Registry of Multimodality treatment for brain ArTeriovenous malformation in mainland China, mRS Modified Rankin Scale, SD Standard Deviation
^a 41 AVMs in the excluded cohort missing critical baseline clinical data
^b 96 AVMs in the excluded cohort missing critical baseline imaging data

ISSN: 2057-4967