Smyth A, O'Hea U, Williams G, Smyth R, Heaf D
University of Liverpool.
Arch Dis Child. 1994 Oct;71(4):353-4. doi: 10.1136/adc.71.4.353.
Passive smoking was measured in 57 children with cystic fibrosis and in 51 controls using a questionnaire and a measurement of urinary cotinine concentration. In the cystic fibrosis group, cotinine was significantly lower than in the controls. Also in this group, when the parents smoked the child's forced expiratory volume in one second decreased by 4% and the forced vital capacity by 3% for every 10 cigarettes smoked in the household each day.
通过问卷调查和测量尿中可替宁浓度，对57名囊性纤维化患儿和51名对照儿童进行了被动吸烟情况的检测。囊性纤维化组的可替宁水平显著低于对照组。在该组中，若父母吸烟，家庭中每天每多吸10支烟，孩子的一秒用力呼气量就会降低4%，用力肺活量降低3%。
