4.3. The living environment of children with chronic cough
We found 133 children’s family (31.7%) had smokers among the
surrounding. Çolak Yunus[21] et al found that smoking is one of the
chronic cough risk factors. The prevalence of chronic cough in the
current smokers was 8%. Johannessen Ane[22] et al believed that
exposure to environmental tobacco smoke (ETS) is associated with
impaired lung function in childhood. ETS might be one of the chronic
cough risk factor.
105 children’s (25.0%) home were along the street. Fang Zhangfu[23]
et al found that the traffic-related air pollution (TRAP) exposures
induced cough hypersensitivity and non-allergic eosinophilic
inflammation of airways in guinea-pigs. De Sajal [24] et al found
that shopkeepers working in heavily trafficked roadside shops suffer
from respiratory morbidity and the risk increases with higher total
exposure period. We believe TRAP might be one of the chronic cough risk
factor; this is worthy of further investigation.