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Evid Based Nurs 1:86 doi:10.1136/ebn.1.3.86
  • Causation

Review: parental tobacco smoke increases the risk of asthma and respiratory symptoms in school age children

Pooled odds ratios (ORs) for association between parental tobacco smoke exposure and asthma, wheeze, and chronic cough in school age children

Asthma Wheeze     Cough
Smoking status OR 95% CI OR CI OR CI
*Not significant.
1 or both parents 1.21 1.10 to 1.34 1.24 1.17 to 1.31 1.40 1.27 to 1.53
1 parent 1.04* 0.78 to 1.38 1.18 1.08 to 1.29 1.29 1.11 to 1.51
Both parents 1.50 1.29 to 1.73 1.47 1.14 to 1.90 1.67 1.48 to 1.89
Mother only 1.36 1.20 to 1.55 1.28 1.19 to 1.38 1.40 1.20 to 1.64
Father only 1.07* 0.92 to 1.24 1.14 1.06 to 1.23 1.21 1.09 to 1.34

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