Syahputra, HadiSabrian, FebrianaUtomo, Wasisto2013-07-092013-07-092013-07-09http://repository.unri.ac.id:80/handle/123456789/4204This research is intended to find out the comparison of Acute Respiratory Infection (ARI) incidence in children age below five (toddlers) between family that has smokers at home with family that has non smoker at all. This research used comparative study design with case-control approach. Research has been done in Rejosari health centers in Pekanbaru city on 68 families which was chosen by using simple random sampling technique by considering inclusion criteria. Measurement tools that has been used is questionnaire that has been tested with validitas and reliabilitas test. Analysis that was used is univariate and bivariate analysis with chi-square test. Result of this research has shown that from 34 families (50% of total sampel) with smoker at home and having children with ARI are 58,8%, while another 34 families with non smoker at all and having children with ARI are 29,4% with degrees of significance 0,05 obtained the pv (0,028) < α (0,05) and OR point 3,429. Conclution of this research is there is significant differences between ARI incidence in toddlers that had smoker family member at home with family that has non smoker family member at all with 3,429 times greater risk on the family with smoker at home. According to this research, health centers (Puskesmas) are expected to increase promotion efforts by providing counseling to families about the danger of tobacco smoke to children health.enARIfamilysmoking behaviortoddlerOther