From: Pirfenidone improves survival in IPF: results from a real-life study
HR
95% CI
P value
Centre
0.27
0.14, 0.55
P < 0.0001
Gender
1.96
0.99, 3.88
P < 0.053
Age
1.00
0.96, 1.04
P < 0.838
FVC
0.98
0.97, 1.00
P < 0.204