Skip to main content

Table 3 Injury types and outcomes for those experiencing head injuries according to helmet use

From: Pediatric bicycle-related head injuries: a population-based study in a county without a helmet law

  Helmet use  
  Yes (N = 87) No (N = 224) Unknown (N = 189)  
Characteristic No. (%) No. (%) No. (%) p value†
Type of injuryab     
 Laceration 43 (49.4) 90 (40.2) 93 (49.2) 0.139
 Contusion 29 (33.3) 91 (40.6) 52 (27.5) 0.236
 Abrasion 41 (47.1) 123 (54.9) 80 (42.3) 0.217
 Fracture 8 (9.2) 15 (6.7) 4 (14.8) 0.445
 Brain injury 12 (13.8) 63 (28.1) 22 (11.6) 0.008
 Other 17 (19.5) 46 (20.5) 33 (17.5) 0.845
Outcomes     
 Head CT/X-ray obtainedb 10 (11.5) 72 (32.1) 28 (14.8) <0.001
 Hospitalizationb 3 (3.4) 19 (8.5) 5 (2.6) 0.144
 PICU admissionc 0 (0.0) 6 (2.7) 0 (0.0) 0.191
 Permanent neurologic injuryc 0 (0.0) 3 (1.3) 1 (0.5) 0.562
 Post traumatic seizurec 0 (0.0) 2 (0.9) 1 (0.5) >0.99
 Need for mechanical ventilationc 0 (0.0) 3 (1.3) 0 (0.0) 0.562
 Mortalityc 0 (0.0) 2 (0.9) 0 (0.0) >0.99
  1. †Chi-square or Fisher’s exact test comparing the frequency of the given event between those wearing a helmet vs. not. Those with unknown helmet use are excluded from this comparison
  2. aPatients may have had multiple injury types or experienced multiple outcomes
  3. bComparison performed using chi-square test
  4. cComparison performed using Fisher’s exact test