An epidemiological survey of chronic cough with no obvious abnormality in chest X-ray

HUANG Jin-hua; XU Pu-sheng; LI Jiao-wu; LI Ming-xia; ZHANG Ting-ting; LUO Xian

doi:10.3969/j.issn.1001-9448.2017.10.029

Abstract：Objective To investigate the epidemiology of chronic cough in Lecong town, Shunde District, Foshan City, Guangdong province.Methods A unified epidemiological questionnaire, with face-to-face interview and multi stage random sampling, was used for the investigation.Results A total of 1850 questionnaires were distributed, 1 769 questionnaires were recovered, and the recovery rate was 95.6%.There were 1 115 male and 654 female interviewees.The overall prevalence rate of chronic cough was 8.65%.The prevalence rate in male was 11.32% and 7.09% in female, as there was significant difference between them (P<0.05).The prevalence rate in the urban area (11.78%) was significantly higher than those in the industrial area (5.24%) and in the agricultural area (7.03%) (P<0.017).Single factor logistic analysis showed that long-term smoking, long-term inhalation of dust, chemical preparation, spicy food, cough in cold air, allergic history, history of nasal diseases, and history of stomach diseases were significantly associated with chronic cough (P<0.05).The multi factor logistic analysis showed that long-term inhalation of dust, chemical preparation, spicy food, cough in cold air, allergic history, history of nasal diseases, and history of stomach diseases were indecent risk factors for chronic cough (P<0.05).The chronic cough influence more on the quality of life in females.Conclusion The local chronic cough with no obvious abnormality in chest X-ray is in high prevalence, and higher in females.Its main pathogenies are CVA, EB, UACS, GERC and AC.The most common high-risk factors are long-term inhalation of dust, chemical preparation, spicy food, cough in cold air, allergic history, history of nasal disease, and history of stomach diseases.