title: Obstructive ventilatory impairment. An investigation in general practice.
abstract: We estimated the prevalence of obstructive ventilatory impairment and its relationship to sex, age, chronic bronchitis, asthma, and smoking in a cross-sectional epidemiological study. The population consisted of 3119 persons greater than or equal to 16 years listed as patients in our general practice. From this group, 2740 (88%) underwent dynamic spirometry (Vitalograph). The main results showed a high prevalence of obstruction. 26% had MMEF values less than 75%, 8% FEV-1 less than 75% and 5% FEV-1/FVC less than 65%. Obstruction was significantly correlated with old age, chronic bronchitis, asthma, and smoking.
authors.forename: J G
authors.initials: JG
authors.lastname: Hansen
authors.forename: H
authors.initials: H
authors.lastname: Schmidt
mesh_terms: D000328:Adult; D000367:Age Factors; D001249:Asthma / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology*; D001991:Bronchitis / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology*; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012737:Sex Factors; D012907:Smoking / Q000009:adverse effects