[Statistical study on correlations between spirometric data and arterial blood gas tensions. I. Under testing conditions].
Spirometric data, resting Pao2 and Paco2 have been statistically evaluated in 152 patients with chronic obstructive bronchitis. Spirographic studies show a restrictive and obstructive syndrome, associated with hypoxaemia and hypercapnia. Partial correlations show that Pao2 is positively correlated with age and negatively with VC (predicted percentage) and with FEV1 (predicted percentage); Paco2 is only correlated with FEV1 (predicted percentage). FEV1 (predicted percentage) divides the patients into two groups, the hypercapnic and normocapnic. These data show the interest of the FEV1 (predicted percentage) values.
D000367:Age Factors; D000402:Airway Obstruction / Q000209:etiology; D001991:Bronchitis / Q000503:physiopathology*; D002245:Carbon Dioxide / Q000097:blood*; D002908:Chronic Disease; D006801:Humans; D008875:Middle Aged; D010100:Oxygen / Q000097:blood*; D012119:Respiration; D013147:Spirometry; D014797:Vital Capacity
D002245:Carbon Dioxide; D010100:Oxygen
Etude statistique des corrélations entre les critères spirographiques et les pressions partielles d'oxygène et d'anhydride carbonique dans le sang artériel