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Table 4 Analysis of the individual symptoms according to distance from the accident site

From: Acute Symptoms in Firefighters who Participated in Collection Work after the Community Hydrogen Fluoride Spill Accident

  Less than 100 m (N = 140) 100 m-1 Km (N = 173) More than 1 Km (N = 35) Total p-value*
  N % N % N % N %  
Throat          
  Throat pain 24 10.8 36 17.1 4 11.8 64 13.7 0.882
Nose          
  Rhinorreha 15 6.8 13 6.2 4 11.8 32 6.9 0.698
  Nasal obstruction 5 2.3 2 1.0 2 5.9 9 1.9 0.881
  Nasal pain 1 0.5 2 1.0 0 0.0 3 0.6 0.932
Eye          
  Ocular pain 28 12.6 22 10.5 5 14.7 55 11.8 0.143
  Red eye 7 3.2 5 2.4 0 0.0 12 2.6 0.122
  Blurred vision 4 1.8 4 1.9 2 5.9 10 2.1 0.612
  Lacrimination 6 2.7 3 1.4 0 0.0 9 1.9 0.084
Lung          
  Cough 32 14.4 29 13.8 2 5.9 63 13.5 0.017
  Sputum 17 7.7 20 9.5 4 11.8 41 8.8 0.871
  Chest discomfort 16 7.2 12 5.7 2 5.9 30 6.4 0.141
  Dyspnea 1 0.5 1 0.5 2 5.9 4 0.9 0.084
Skin          
  Skin pruritus 10 4.5 9 4.3 2 5.9 21 4.5 0.560
  Skin rash 6 2.7 6 2.9 0 0.0 12 2.6 0.227
  Skin pain 0 0.0 6 2.9 1 2.9 7 1.5 0.064
Nerve          
  Fatigue 17 7.7 15 7.1 0 0.0 32 6.9 0.034
  Headache 19 8.6 11 5.2 0 0.0 30 6.4 0.003
  Dizziness 5 2.3 1 0.5 1 2.9 7 1.5 0.262
  Arm/leg claudication 2 0.9 4 1.9 0 0.0 6 1.3 0.903
Stomach          
  Vomiting 3 1.4 3 1.4 1 2.9 7 1.5 0.947
Other 4 1.8 6 2.9 2 5.9 12 2.6 0.459
Total 222 100.0 210 100.0 34 100.0 466 100.0  
  1. *Chi-square test for trend.