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Table 8 Injury type incidence and severity

From: Incidence, severity, aetiology and type of neck injury in men's amateur rugby union: a prospective cohort study

Severity NG1 NJ1 NL1 NM1 NN1 NP1 NZ1 SN1 NP1 SN1
Minor N = 0 N = 1 N = 7 N = 11 N = 1 N = 27 N = 8 N = 6  
  0.00 0.03 (CI: 0.00, 0.18) 0.22 (CI: 0.09, 0.46) 0.35 (CI: 0.18, 0.63) 0.03 (CI: 0.00, 0.18) 0.87 (CI: 0.57, 1.26) 0.26 (CI: 0.11, 0.51) 0.19 (CI: 0.07, 0.42)  
  0.0% 100.0% 58.3% 84.6% 50.0% 71.1% 88.9% 46.2%  
Mild N = 1 N = 0 N = 3 N = 1 N = 1 N = 6 N = 0 N = 3  
  0.03 (CI: 0.00, 0.18) 0.00 0.10 (CI: 0.02, 0.28) 0.03 (CI: 0.00, 0.18) 0.03 (CI: 0.00, 0.18) 0.19 (CI: 0.07, 0.42) 0.00 0.10 (CI: 0.02, 0.28)  
  100.0% 0.0% 25.0% 7.7% 50.0% 15.8% 0.0% 23.1%  
Moderate N = 0 N = 0 N = 1 N = 1 N = 0 N = 2 N = 1 N = 1  
  0.00 0.00 0.03 (CI: 0.00, 0.18) 0.03 (CI: 0.00, 0.18) 0.00 0.06 (CI: 0.01, 0.23) 0.03 (CI: 0.00, 0.18) 0.03 (CI: 0.00, 0.18)  
  0.0% 0.0% 8.3% 7.7% 0.0% 5.3% 11.1% 7.7%  
Severe N = 0 N = 0 N = 1 N = 0 N = 0 N = 3 N = 0 N = 2  
  0.00 0.00 0.03 (CI: 0.00, 0.18) 0.00 0.00 0.10 (CI: 0.02, 0.28) 0.00 0.06 (CI: 0.01, 0.23)  
  0.0% 0.0% 8.3% 0.0% 0.0% 7.9% 0.0% 13.4%  
All N = 1 N = 1 N = 12(1) N = 13 N = 2(2) N = 38(3) N = 9 N = 13*(2) N = 1*
  0.03 (CI: 0.00, 0.18) 0.03 (CI: 0.00, 0.18) 0.38 (CI: 0.20, 0.67) 0.42 (CI: 0.22, 0.71) 0.06 (CI: 0.01, 0.23) 1.22 (CI: 0.86, 1.67) 0.28 (CI: 0.13, 0.55) 0.42 (CI: 0.22, 0.71) 0.03 (CI: 0.00, 0.18)
  1.1% 1.1% 13.3% 13.3% 2.2% 42.2% 10.0% 14.4% 1.1%
  1. *Two injuries with unknown severity
  2. INJURY TYPE ABBREVIATION
  3. NG1: Avulsion fracture (spinous process) of the cervical spine, NJ1: Whiplash/neck sprain, NL1: Neck ligament injury, NM1: Neck muscle strain, NM1 (Contusion): Neck muscle contusion, NN1: Cervical nerve root compression/stretch, NP1: Cervical facet joint pain, NZ1: Neck pain undiagnosed, SN1: Brachial plexus traction injury/stinger/burner
  4. Neck injury count (recurrent neck injury count)
  5. Incidence/1000 player-hours (95% CI)
  6. Percent