Table 6 Analysis of the results of the electrolyte analysis, pulmonary function test, electrocardiography, and chest radiography according to distance from the accident site
Characteristic | Less than 100 m (N = 140) | 100 m-1 Km (N = 173) | More than 1 Km (N = 35) | p-value* |
|---|---|---|---|---|
Mean ± SD | Mean ± SD | Mean ± SD | ||
Serum electrolyte | ||||
Calcium (mg/dL) | 9.41 ± 0.37 | 9.41 ± 0.37 | 9.45 ± 0.36 | 0.579 |
Phosphorus (mg/dL) | 3.44 ± 0.70 | 3.44 ± 0.46 | 3.37 ± 0.35 | 0.767 |
Spirometry† | ||||
FVC (L) | 4.50 ± 0.67 | 4.36 ± 0.75 | 4.59 ± 0.86 | 0.019 |
FVC% (%) | 90.57 ± 10.01 | 90.68 ± 11.35 | 95.66 ± 11.43 | 0.019 |
FEV1 (L) | 3.67 ± 0.60 | 3.55 ± 0.62 | 3.64 ± 0.67 | 0.060 |
FEV1% (%) | 91.80 ± 10.97 | 92.54 ± 11.61 | 95.60 ± 12.58 | 0.104 |
FEV1/FVC | 81.63 ± 6.56 | 81.58 ± 6.02 | 79.45 ± 6.05 | 0.257 |
FEF25-75 (L) | 3.70 ± 1.08 | 3.59 ± 0.97 | 3.40 ± 0.97 | 0.366 |
FEF25-75% (%) | 95.20 ± 24.59 | 97.57 ± 23.85 | 94.80 ± 27.98 | 0.568 |