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Table 2 Patient characteristics

From: Prediction of intracranial findings on CT-scans by alternative modelling techniques

   Intracranial lesions  
   absent present  
   n (%) n (%) p-value
Fracture skull Absent 2901 (98.7) 207 (85.2) 0.000
  Present 37 (1.3) 36 (14.8)  
EMV presentation (total) = 13 Absent 2818 (95.9) 212 (87.2) 0.000
  Present 120 (4.1) 31 (12.8)  
EMV presentation (total) = 14 Absent 2447 (83.3) 166 (68.3) 0.000
  Present 491 (16.7) 77 (31.7)  
Memory deficit Absent 2535 (86.3) 171 (70.4) 0.000
  Present 403 (13.7) 72 (29.6)  
Contusion skull Absent 1863 (63.4) 103 (42.4) 0.000
  Present 1075 (36.6) 140 (57.6)  
Loss of consciousness Absent 1169 (39.8) 61 (25.1) 0.000
  Present 1769 (60.2) 182 (74.9)  
Seizure Absent 2920 (99.4) 238 (97.9) 0.000
  Present 18 (0.6) 5 (2.1)  
Vomiting Absent 2651 (90.2) 188 (77.4) 0.000
  Present 287 (9.8) 55 (22.6)  
Coumarins Absent 2868 (97.6) 230 (94.7) 0.005
  Present 70 (2.4) 13 (5.3)  
Neurological deficit (all) Absent 2676 (91.1) 201 (82.7) 0.000
  Present 262 (8.9) 42 (17.3)  
Cause Reference 1882 (64.1) 102 (42) 0.000
  ped.or cyclist 297 (10.1) 51 (21)  
  Fall 702 (23.9) 82 (33.7)  
  Ejected 57 (1.9) 8 (3.3)  
PTA in 3 categories < = 2 hrs. 2910 (99.0) 232 (95.5) 0.000
  > 2 hrs. and < = 4 hrs. 25 (0.9) 6 (2.5)  
  > 4 hrs. 3 (0.1) 5 (2.1)  
   mean (sd) mean (sd) p-value
EMV change   0.07 (0.50) -0.04 (1.27) 0.186
Age - 16 per decade   2.48 (1.85) 3.22 (2.01) 0.000