|
Lung function parameters
|
Sex (males)
|
Age (years)
|
Height (cm)
|
BMI (%)
|
Weight (Kg)
|
Costant
|
N
|
R^2
|
RSE
|
|---|
|
FVC
|
-0.049b
|
0.018
|
0.026c
|
0.015c
|
[0.011]
|
-2.042c
|
328
|
0.57
|
0.15
|
|
FEV1
|
-0.042b
|
0.038
|
0.023c
|
0.017c
|
[0.013]
|
-1.907c
|
409
|
0.59
|
0.13
|
|
FEV0.75
|
-0.034c
|
0.023b
|
0.022c
|
0.015b
|
[0.008]
|
-1.729c
|
494
|
0.59
|
0.12
|
|
FEV0.5
|
-0.031c
|
0.024b
|
0.017c
|
0.011b
|
[0.001]
|
-1.311c
|
564
|
0.55
|
0.11
|
|
MEF75
|
0.059
|
0.108b
|
0.046c
|
0.024c
|
[-0.113]
|
-3.385c
|
328
|
0.41
|
0.39
|
|
MEF50
|
0.002
|
[0.024]
|
0.033c
|
[0.015]
|
[-0574]
|
-2.269c
|
328
|
0.29
|
0.32
|
|
MEF 25
|
0.012
|
[-0.005]
|
0.018c
|
[0.075]
|
[-0.538]
|
-1.152c
|
328
|
0.19
|
0.22
|
- a = p < 0.05; b= p < 0.01; c = p < 0.001;
- BMI = body mass index;
- β = Multiple Regression Coefficient;
- FVC = forced vital capacity;
- FEV1= forced expiratory volume in one second;
- FEV0.75 = forced expiratory volume in 3/4 of a second;
- FEV0.5 = forced expiratory volume in half a second;
- MEF75 = instantaneous expiratory flow when 25% of FVC has to be expired
- MEF50 = instantaneous expiratory flow when 50% of FVC has to be expired
- MEF25 = instantaneous expiratory flow when 75% of FVC has to be expired
- [ ] brackets variables = excluded by log-likelihood ratio test because collinear or NS and not influent.
- * Reference values were computed as y' = Summ(BX)+constant; the 5
th
percentiles of reference values "as normality limit" was computed by subtracting to y' the 1.64* Root MSE
