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Maternal waterpipe smoke exposure and the risk of asthma and allergic diseases in childhood: A post hoc analysis

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Waked M., Salameh P.

International Journal of Occupational Medicine and Environmental Health

2015

vol. 28

issue 1

147-156

Introduction This analysis was conducted with the objective of evaluating association between waterpipe passive smoking exposure and asthma, and allergies among Lebanese children. Material and methods Data were taken from a crosssectional study on children from public and private schools. A sample of 22 schools participated in the study, where standardized written core questionnaires were distributed. From 5 to 12-year-old students filled in the questionnaires at home, while 13–14-year-old students filled it in in the class. In total, 5522 children were evaluated for the prevalence of asthma, allergic rhinitis and atopic eczema, and their associated factors, including waterpipe exposure due to parents’ smoking. Results The descriptive results of parental smoking were, as follows: among mothers: 1609 (29%) mothers smoked cigarettes, 385 (7%) smoked waterpipe and 98 (1.8%) smoked both; among fathers: 2449 (44.2%) smoked cigarettes, 573 (10.3%) smoked waterpipe and 197 (3.5%) smoked both. Maternal waterpipe smoking was significantly and moderately associated with allergic diseases (p < 0.001; ORa = 1.71), including probable asthma, rhinitis and dermatitis (p < 0.001 for all). Quite on the opposite, father’s waterpipe smoking was not associated with any of the diseases. Parental cigarette smoking demonstrated some positive effects: father’s cigarette smoking did not show association with dermatitis or asthma diagnosed by a physician, while mother’s cigarette smoking showed a positive association only with probable asthma. Moreover, no interactions between cigarette and waterpipe smoking were observed. Conclusions Maternal waterpipe smoking should be regarded as a high risk behavior; however, additional studies are necessary to confirm this finding.

Carbon monoxide and respiratory symptoms in young adult passive smokers: A pilot study comparing waterpipe to cigarette

88%

Zeidan R., Rachidi S., Awada S., Hajje A., Bawab W., Salamé J., Bejjany R., Salameh P.

International Journal of Occupational Medicine and Environmental Health

2014

vol. 27

issue 4

571-582

Objectives: Studies have correlated second hand smoke (SHS) with many diseases, especially respiratory effects. The goal of this study was to measure the impact of SHS on the respiratory symptoms and exhaled carbon monoxide. Material and Methods: The study population consisted of 50 young workers in restaurants serving waterpipes, 48 university students who sit frequently in the university cafeteria where cigarette smoking is allowed and 49 university students spending time in places where smoking is not allowed. Subjects completed questionnaires on socio-demographic characteristics, respiratory symptoms and exposure to SHS. Exhaled carbon monoxide levels were measured. ANOVA and Chi-square tests were used when applicable as well as linear and logistic regression analysis. Results: Exposure to cigarette smoke in university (adjusted odds ratio (ORa) = 6.06) and occupational exposure to waterpipe smoke (ORa = 7.08) were predictors of chronic cough. Being married (ORa = 6.40), living near a heavy traffic road (ORa = 9.49) or near a local power generator (ORa = 7.54) appeared responsible for chronic sputum production. Moreover, predictors of chronic allergies were: being male (ORa = 7.81), living near a local power generator (ORa = 5.52) and having a family history of chronic respiratory diseases (ORa = 17.01). Carbon monoxide levels were augmented by the number of weekly hours of occupational exposure to waterpipe smoke (β = 1.46) and the number of daily hours of exposure to cigarette smoke (β = 1.14). Conclusions: In summary, young non-smoker subjects demonstrated more chronic cough and elevated carbon monoxide levels when exposed to SHS while the effect of waterpipe was even more evident.

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2 International Journal of Occupational Medicine and Environmental Health

2 Salameh P.

1 Awada S.

1 Bawab W.

1 Bejjany R.

1 Hajje A.

1 Rachidi S.

1 Salamé J.

1 Waked M.

1 Zeidan R.

1 2015

1 2014

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Maternal waterpipe smoke exposure and the risk of asthma and allergic diseases in childhood: A post hoc analysis

Carbon monoxide and respiratory symptoms in young adult passive smokers: A pilot study comparing waterpipe to cigarette