Table 3.

Respiratory chronic diseases and family history of study and control groups.

Variables	Rating	Statistics	Group
			Study	Control
Asthma	Yes	Freq.	25	25
		%	64.1%	26.3%
	No	Freq.	14	70
		%	35.9%	73.7%
Pulmonary obstruction	Yes	Freq.	12	2
		%	30.8%	2.1%
	No	Freq.	27	93
		%	69.2%	97.9%
Pneumonia	Yes	Freq.	19	8
		%	48.7%	8.4%
	No	Freq.	20	87
		%	51.3%	91.6%
Pertussis	Yes	Freq.	6	1
		%	15.4%	1.1%
	No	Freq.	33	94
		%	84.6%	98.9%
Family History	Yes	Freq.	30	34
		%	76.9%	35.8%
	No	Freq.	9	61
		%	23.1%	64.2%

Freq. – frequency; % – Percentage.