| |
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
|
- *Adjusted for age, sex, height, asbestos exposure and smoking history
- 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.
