[Normal values of respiratory function tests. Safety of normalized regression equations].
A frequent question in lung function testing is the extent of the margin of error in the measurements. Is the confidence interval (CI) of the usual summary equations for reference values larger than the sum of every possible error including interindividual variations and measurement errors which come from the apparatus, the technician and the patient? The analysis of the data of several authors including our data (lung function laboratory of Brest University hospital) leads to the conclusion that the summary equations of Quanjer et al. (1993) may be used safety as the CI is larger than the sum of all errors. However, this is only true if lung function testing is performed in optimal conditions, i.e. with frequently checked and carefully calibrated apparatus used by professional technicians in cooperating patients.
Barthélémy
L
L
Service d'Explorations Fonctionnelles Respiratoires Lavoisier, Hôpital Morvan, Brest.
Mialon
P
P
Sebert
P
P
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D012015:Reference Standards; D012016:Reference Values; D012129:Respiratory Function Tests / Q000592:standards*
Normalité des explorations fonctionnelles respiratoires. Sécurité des équations de régression "normatrices".