Table 2. The differences in the prevalence of sensitization and allergic symptoms between urban and rural environments.

Age	Environment	Sensitized %	Symptomatic %
		Inhalant	Food	Wheeze	Asthma	Rhinitis	Hayfever	Eczema	Atopic dermatitis
Young	Urban (n = 54)	9.52	9.52	24.24	4.54	35.82	7.46	35.82	4.47
	Rural (n = 65)	22.82	30.43	23.23	4.04	20.20	9.09	44.44	13.13
		P = 0.053	P = 0.004	P = 1	P = 1	P = 0.039	P = 0.93	P = 0.34	P = 0.11
Old	Urban (n = 17)	47.06	23.52	29.41	17.64	76.47	35.29	47.05	5.88
	Rural (n = 52)	35.29	25.49	26.41	5.66	39.62	18.86	62.26	18.86
		P = 0.56	P = 1	P = 1	P = 0.29	P = 0.017	P = 0.28	P = 0.40	P = 0.36

Young contains children from one to four years old, and Old includes children from eight to fourteen years. The statistically significant differences are shown with bold text. The sum variables were created from questions regarding allergic symptoms such that if answer was ‘yes’ in any of questions focusing on certain symptom-group, then children was classified as symptomatic. Questions considered wheeze, asthma, rhinitis, hay fever, eczema, and atopic dermatitis symptoms; thus, sum variables of all of these symptoms-groups were created.