Table 4.

Odds ratios of current symptoms for childhood ETS exposure, childhood lower respiratory infections, personal smoking, and family history of emphysema

Symptom	Childhood ETS	Ever Smoker	Childhood respiratory infections	Family history of emphysema
Cough	1.56 (0.94–2.57)	1.78 (1.18–2.94)	1.12 (0.67–1.84)	1.00 (0.62–1.61)
Wheeze	1.28 (0.76–2.15)	2.64 (1.59–4.41)	2.05 (1.21–3.51)	2.03 (1.11–3.21)
Dyspnea	1.13 (0.69–1.85)	2.28 (1.37–3.79)	1.63 (1.00–2.66)	1.03 (0.60–1.49)

Abbreviations: ETS, environmental tobacco smoke.

Note: Bold indicates statistical significance.