Table 2 Prevalence of allergic disorders according to smoking status in 1743 pregnant women, Kyushu Okinawa Maternal and Child Health Study, Japan
Wheeze | Asthma | Eczema | Rhinoconjunctivitis | ||||||
|---|---|---|---|---|---|---|---|---|---|
N | n | % | n | % | n | % | n | % | |
Smoking status | |||||||||
Never | 1182 | 105 | 8.9% | 58 | 4.9% | 146 | 12.4% | 302 | 25.6% |
Former | 503 | 65 | 12.9% | 31 | 6.2% | 72 | 14.3% | 133 | 26.4% |
Current | 58 | 12 | 20.7% | 7 | 12.1% | 8 | 13.8% | 17 | 29.3% |
Pack-years of smoking | |||||||||
None | 1182 | 105 | 8.9% | 58 | 4.9% | 146 | 12.4% | 302 | 25.6% |
0.05-3.9 | 262 | 27 | 10.3% | 11 | 4.2% | 36 | 13.7% | 68 | 26.0% |
≥ 4.0 | 299 | 50 | 16.7% | 27 | 9.0% | 44 | 14.7% | 82 | 27.4% |