Sparrow D, O'Connor G, Weiss S T
Normative Aging Study, VA Outpatient Clinic, Boston, Ma.
Bull Eur Physiopathol Respir. 1987 Jul-Aug;23(4):395-6.
A methacholine bronchial provocation test was administered to 290 subjects obtained from the 1,900 male volunteers participating in the Normative Aging Study. A positive response (less than 20% decline in FEV1) was obtained in 83 subjects. A positive response was associated with current smoking, presence of wheeze and reduced FEV1. Bronchial responsiveness, cigarette smoking, normal subjects, FEV1.
对参与规范衰老研究的1900名男性志愿者中的290名受试者进行了乙酰甲胆碱支气管激发试验。83名受试者出现阳性反应（第一秒用力呼气容积[FEV1]下降小于20%）。阳性反应与当前吸烟、喘息症状的存在以及FEV1降低有关。支气管反应性、吸烟、正常受试者、FEV1。
