Variable	Cases (No. 250)		Control (No. 250)		Significant Tests
Variable	No.	%	No.	%	Significant Tests
1-Breast Feeding:
Yes	168	67.2	212	84.8	x² = 21.228 P = 0.000
No	82	32.8	38	15.2	x² = 21.228 P = 0.000
2-Using “pacifier”:
Yes	39	15.6	21	8.4	x² = 6.136 P = 0.009
No	211	84.4	229	91.6	x² = 6.136 P = 0.009
3-Father smoke:
Yes	153	61.2	106	42.4	x² = 17.695 P = 0.000
No	97	38.8	144	57.6	x² = 17.695 P = 0.000
4-Exposure to smoke:
Yes	78	31.2	42	16.8	x² = 14.211
No	172	68.8	208	83.2	P = 0.000
5-Source of smoke:
Yes	19	7.6	1	0.4	x² = 16.875 P = 0.000
No	231	92.4	249	99.6	x² = 16.875 P = 0.000