Table 2.

Chief complaints of non-hospitalized patients with respect to the distance from the accident spot

Chief complaint	Within 100 m		Beyond 100 m		Total		p-value *
	n	%	n	%	n	%
Headache	20	27.4	26	20.0	46	22.7	0.227
Eye irritation	23	31.5	14	10.8	37	18.2	<0.001
Nausea	10	13.7	13	10.0	23	11.3	0.425
Sore throat	10	13.7	12	9.2	22	10.8	0.326
Chest pain	10	13.7	9	6.9	19	9.4	0.112
Dizziness	7	9.6	5	3.8	12	5.9	0.096
Cough	1	1.4	9	6.9	10	4.9	0.079
Other	10	13.7	25	19.2	35	17.2	0.317
No symptom	19	26.0	55	42.3	74	36.5	0.021
Total	73	100.0	130	100.0	203	100.0

*Chi-squared test.