Long Term Effects of Tear Gases on Respiratory System: Analysis of 93 Cases

Table 4

Odds ratios of respiratory complaints in tear gas exposed group.

Parameter	Odds ratio	95% confidence interval
Chest tightness last year	2.493	1.251	4.971
Exercise dyspnea last year	1.900	1.096	3.292
Dyspnea on level ground	1.978	1.298	3.013
Winter morning cough	2.442	1.153	5.172
Winter morning phlegm	2.470	1.086	5.613
Winter daily phlegm	2.021	1.134	3.601