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Vol. 48. Issue 1.
Pages 42-47 (January - February 2020)
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Vol. 48. Issue 1.
Pages 42-47 (January - February 2020)
Original Article
DOI: 10.1016/j.aller.2019.06.010
The relationship between second-hand smoke and wheezing in infants from Córdoba, Argentina
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A. Teijeiroa,
Corresponding author
ateijeirom@gmail.com

Corresponding author.
, M.N. Cuelloa, M.G. Raidena, R.E. Vieyraa, D. Soléb, P. Ellwoodc, R.M. Gomezd
a Respiratory Center, Pediatric Hospital of Córdoba, Castro Barros 650, CP: 5000 Cordoba, Argentina
b Division of Allergy, Clinical Immunology and Rheumatology, Dept of Pediatrics, Federal University of São Paulo-Escola Paulista de Medicina, São Paulo, Brazil
c Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
d Hospital San Bernardo, Allergy & Asthma Unit, Ayre Fundation, Argentina
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Tables (2)
Table 1. More frequent wheezing: demographic and health characteristics (N: 195).
Table 2. Factors associated with more frequent wheezing (multivariate analysis) (N=195).
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Abstract
Background

Wheezing constitutes a common respiratory symptom in children, and several risk factors have been associated with the prevalence of recurrent wheezing (RW) and its severity, especially viral respiratory infections and second-hand smoke (SHS) exposure.

Objective

To analyze the relationship between smoking patterns in the home and wheezing, in infants from the city of Córdoba, Argentina, during their first year of life.

Methods

Parents of infants were invited to complete a standardized questionnaire voluntarily and anonymously (WQ-P1-EISL). Wheezing in the first 12 months of life was classified as occasional wheezing (OW) when having one or two episodes during the first 12 months of life; recurrent wheezing (RW) if having three or more, and more frequent wheezing (MFW) ≥6 episodes.

Results

409 infants (39.0%) had one or more episodes of wheezing in the first 12 months. Of these, 214 infants (52.3%) presented occasional wheezing (OW), 135 (33%) had recurrent wheezing (RW), and 60 (14.7%) more frequent wheezing (MFW). SHS was significantly related to MFW, especially if the mother smoked (OR=2.7; IC 95%: 1.4–5.18; p=0.0009) or if she smoked during pregnancy (OR=4; IC 95%: 1.8–8.5; p=0.0001). This group of MFW was also associated with SHS as well as having been to the emergency room for wheezing (40.87%, p=0.0056).

Conclusion

The results indicate that second-hand tobacco smoke is a significant risk factor for the presence of wheezing in infants, and for its severity. Our findings have significant implications for public health, as smoking is a modifiable behavior.

Keywords:
Second-hand smoke
Wheezing
Infants
Health survey

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