Table 2
Multivariate analysis
Variable
OR
95% CI
p Value
CI, confidence interval; FVC, forced vital capacity; OR, odds ratio.
FVC (%)
30 to 49
1
0.001
<30
2.87
1.35 to 3.18
Intervention
PRG
1
0.03
PEG
1.58
1.12 to 2.01