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Table 1 Characteristics of children under 7 years of age with epilepsy seen between 2010 and 2014 (N = 302)

From: Risk of seizures after immunization in children with epilepsy: a risk interval analysis

Characteristics Patients with immunization visits (N = 80) Patients with no immunization visits (N = 67) Patients with no immunization records (N = 155) P
  n (%) n (%) n (%)  
Sex
 Male 37 (46) 33 (49) 76 (49) 0. 93
 Female 43 (54) 34 (51) 79 (51)  
Age at epilepsy diagnosis
 mean (SD), in years 2.1 (1.6) 4.0 (2.1) 3.1 (2.1) < 0.001
Place of residence
 Halifax Regional Municipality 29 (36) 22 (33) 63 (41) 0.34
 Outside Halifax 51 (64) 45 (67) 92 (59)  
Epilepsy type 0.06
 Severe epilepsy 7 (9) 5 (7) 3 (2)  
 Partial epilepsy 33 (41) 19 (28) 62 (40)  
 Unclassified epilepsy 26 (32) 21 (31) 52 (34)  
 Other types 14 (18) 22 (33) 38 (25)  
Number of seizure events
mean (SD) 2.5 (3.2) 0.7 (1.5) 0.9 (1.6) < 0.001
Antiepileptic medications 0.01
 0 6 (7) 9 (13) 36 (23)  
 1 55 (69) 45 (67) 99 (64)  
  ≥ 2 19 (24) 13 (19) 2 (13)  
  1. CI, confidence interval; SD, standard deviation
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