Relationship between Abundance of Risk Factors and Prevalence of Asthma and Allergic Disease at South of Cairo : Table 2

Table 2: Frequency distribution of children with and without asthma symptoms as regards environmental pollution.

Factor	Asthma Symptoms	Chi square
	Present (142)	Absent (166)	X²	P value
Nearby factories	37 (26.1%)	20 (12%)	9.958	0.002*
Nearby trucks	137 (96.5%)	154 (92.8%)	2.018	0.155
Nearby coffee shops	93 (65.5%)	83 (50%)	7.501	0.006*
Pet exposure	89 (62.7%)	68 (41%)	14.437	<0.001*