Skip to main content

Table 3 Relationships between plasma retinol concentrations and lung function levels and annual rate of change*

From: Plasma retinol, carotene and vitamin E concentrations and lung function in a crocidolite-exposed cohort from Wittenoom, Western Australia: a cohort study

  Quartiles FEV1 95%CI FVC 95%CI
Level at entry into program (ml) Q1 0   0  
  Q2 5.5 -15.5,26.6 -8.9 -35.8,17.9
  Q3 4.4 -19.8,28.7 6.6 -24.4,37.6
  Q4 2.6 -25.5,30.9 -16.8 -52.7,19.1
Annual change (ml/year) Q1 0   0 0
  Q2 4.1 -1.8,10.1 10.3 2.7,17.9
  Q3 7.1 1.0,13.4 11.1 3.2,19.1
  Q4 11.3 4.8,17.7 18.6 2.7,10.3
  1. *Adjusted for age, sex, height, asbestos exposure and smoking history
  2. Quartile 1: Retinol concentrations lower than 2.5 μmol/L; Quartile 2: concentrations more than 2.5 and less than 3.0 μmol/L; quartile 3: concentrations more than 3.0 and less than 3.5; and quartile 4: concentrations equal or greater than 3.5 μmol/L.