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. Author manuscript; available in PMC: 2017 Sep 5.
Published in final edited form as: AJNR Am J Neuroradiol. 2015 Nov 12;37(3):415–422. doi: 10.3174/ajnr.A4563

Table 2.

Summary statistics for variables of interest by pattern of contrast enhancement

Variable and Category Negative (n = 76) Contrast Enhancement Others (n = 14) P Value

LM (n = 24) Cortical + LM (n = 21)
Sex
 Male 29 (38.2%) 4 (16.7%) 5 (23.8%) 6 (42.9%) .154
 Female 47 (61.8%) 20 (83.3%) 16 (76.2%) 8 (57.1%)
Age
 Median 44 45 24 57 .011
 Mean 42 40 32 55
MRI severity
 Minimal 8 (10.5%) 2 (8.3%) 2 (9.5%) 1 (7.1%) .942
 Mild 37 (48.7%) 10 (41.7%) 10 (47.6%) 6 (42.9%)
 Moderate 18 (23.7%) 6 (25%) 6 (28.6%) 6 (42.9%)
 Severe 13 (17.1%) 6 (25%) 3 (14.3%) 1 (7.1%)
Symptom
 Seizure 48 (63.2%) 12 (50%) 16 (76.2%) 9 (64.3%) .322
 AMS 20 (26.3%) 5 (20.8%) 3 (14.3%) 4 (28.6%)
 Others 8 (10.5%) 7 (29.2%) 2 (9.5%) 1 (7.1%)
IPH
 Yes 6 (7.9%) 5 (20.8%) 1 (4.8%) 2 (14.3%) .233
 No 70 (92.1%) 19 (79.2%) 20 (95.2%) 12 (85.7%)
SBPmax (mean) 168.8 166.7 142.8 172.8 .037
DBPmax (mean) 97.23 96.74 88.11 99.08 .260
Outcome score
 Missing +4 34 13 7 8
 0 33 (78.6%) 8 (72.7%) 10 (71.4%) 5 (83.3%) .305
 1 4 (9.5%) 1 (9.1%) 2 (14.3%) 8
 2 5 (11.9%) 0 2 (14.3%) 1 (16.7%)
 3 0 2 (18.2%) 0 0

Note:—LM indicates leptomeningeal; IPH, intraparenchymal hemorrhage; AMS, altered mental status.