From: Combined pulmonary fibrosis and emphysema: a retrospective analysis of clinical characteristics, treatment and prognosis
Variable
Estimated value
Standard error
Chi-square value
P
Hazard ratio
95 % CI
PAH
2.33
0.68
11.57
<0.01
10.29
2.69-39.42
≥5-point increase in CPI score per year
3.07
0.55
30.63
21.60
7.28-64.16