What question did this study set out to answer?

The study aims to assess the impact of involuntary smoking on respiratory illness incidence in infants during their first year of life.

March 1, 1985PEDIATRICS

Involuntary Smoking and Incidence of Respiratory Illness During the First Year of Life

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Prospective study shows increased bronchitis risk in infants exposed to household cigarette smoke.

The study aims to assess the impact of involuntary smoking on respiratory illness incidence in infants during their first year of life.
Prospective study involving 1,144 infants and their families.
Evaluated smoking exposure and familial respiratory illness history.
Analyzed incidence rates of lower respiratory diseases such as tracheitis and bronchitis.
Infants exposed to household cigarette smoke had significantly higher rates of tracheitis and bronchitis.
Maternal smoking posed greater risks compared to paternal smoking.
Family history of respiratory illness significantly influenced the incidence of bronchitis.

Pedreira et al. (1985) studied this question.

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