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Table 6 Chief complaints with respect to distance from the accident site

From: Acute Symptoms after a Community Hydrogen Fluoride Spill

  Under 100 m 100 m-1 km Over 1 km p-value *
N % N % N %
Sore throat 51 22.7 195 28.2 131 23.5 0.660
Headache 46 20.4 142 20.5 106 19.0 0.549
Cough 27 12.0 87 12.6 82 14.7 0.234
Eye irritation 21 9.3 58 8.4 47 8.4 0.742
Shortness of breath 18 8.0 29 4.2 19 3.4 0.012
Chest pain 11 4.9 33 4.8 18 3.2 0.190
Dizziness 9 4.0 27 3.9 17 3.0 0.423
Nausea 3 1.3 26 3.8 14 2.5 0.784
Rhinorrhea 2 0.9 13 1.9 26 4.7 0.001
Skin burning 5 2.2 13 1.9 16 2.9 0.405
Itching 5 2.2 13 1.9 9 1.6 0.557
Sputum 8 3.6 7 1.0 10 1.8 0.289
Nasal pain 2 0.9 3 0.4 9 1.6 0.137
Skin rash 1 0.4 4 0.6 0 0.0 0.169
Vomiting 0 0.0 1 0.1 0 0.0 0.744
Others 12 5.3 16 2.3 20 3.6 0.548
No symptom 4 1.8 25 3.6 34 6.1 0.003
Total 225 100.0 692 100.0 558 100.0  
  1. * Chi-squared test for trend.