Peat J K, Woolcock A J, Leeder S R, Blackburn C R
Am J Epidemiol. 1980 Jun;111(6):728-35. doi: 10.1093/oxfordjournals.aje.a112951.
During a study of the prevalence of asthma and bronchitis in Sydney schoolchildren, some social and environmental factors were documented to ascertain if these affected the prevalence of either of these diseases. Socioeconomic status obtained from father's occupation, area of residence, family size, nationality, country of birth and smoking habits were examined. Although small differences were found between groups, no consistent relationship was found between social class and lung disease with the exception of increased prevalence of asthma in boys in social class I and girls in social class II. There were no major associations with area of residence or with family size. Children who were born outside Australia tended to have less asthma and bronchitis than children born inside Australia and migrant children tended to first develop asthma several years after arriving in Australia. Bronchitis was found to be more common in children with an earlier history of bronchitis in infancy and early childhood. The prevalence of recent bronchitis in the group of children who smoked 20 or more cigarettes per week was higher than that in the nonsmoking group of children.
在一项对悉尼学童哮喘和支气管炎患病率的研究中，记录了一些社会和环境因素，以确定这些因素是否会影响这两种疾病的患病率。研究考察了从父亲职业、居住地区、家庭规模、国籍、出生国家和吸烟习惯得出的社会经济地位。尽管在不同群体之间发现了细微差异，但除了社会阶层I的男孩和社会阶层II的女孩哮喘患病率增加外，未发现社会阶层与肺部疾病之间存在一致的关系。与居住地区或家庭规模没有主要关联。在澳大利亚境外出生的儿童患哮喘和支气管炎的几率往往低于在澳大利亚境内出生的儿童，移民儿童往往在抵达澳大利亚几年后首次患上哮喘。支气管炎在婴儿期和幼儿期有早期支气管炎病史的儿童中更为常见。每周吸烟20支或更多香烟的儿童组近期支气管炎的患病率高于不吸烟儿童组。
