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ORIGINAL ARTICLE
Year : 2020  |  Volume : 7  |  Issue : 2  |  Page : 79-83

Risk factors for bronchiolitis


Department of Pediatrics, Karnataka Institute of Medical Sciences, Hubli, Karnataka, India

Correspondence Address:
Dr. Vinod H Ratageri
Department of Pediatrics, Karnataka Institute of Medical Sciences, Hubli - 580 021, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JPCC.JPCC_23_20

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Background: Bronchiolitis is a common acute respiratory illness with significant morbidity and mortality in children aged <2 years. Many risk factors have been proposed though none conclusively proven. Objective: The objective of the study is to determine the risk factors for bronchiolitis in children aged <24 months. Methodology: This was a retrospective study conducted at Karnataka Institute of Medical Sciences, Hubli, from July to September 2018 on children aged <24 months, with clinically diagnosed bronchiolitis considered as cases and age-matched children admitted during the same period for nonrespiratory causes as controls. Results: Totally, 85 children and 91 controls were included in the study with a mean age at presentation being 5.5 months (interquartile range = 2–8 months) and male-to-female ratio of 1.42:1. The most common symptoms were cough (98.8%), fever (84.7%), cold (64.7%), hurried breathing (58.8%), chest indrawing (42.2%), and noisy breathing (35.3%). On univariate analysis, low socioeconomic status (SES), overcrowding, unimmunized status, exposure to pets, and birth by cesarean section (CS) were significant risk factors. On applying multiple logistic regression (odds ratio, 95% confidence interval), low SES, unimmunized status, exposure to pets, and birth by CS were found to be significant. Conclusion: Low SES, partial/unimmunized status, exposure to pets, and birth by CS were deduced to be important significant risk factors for bronchiolitis.


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