Table 3. Multivariate regression analysis demonstrating mortality according to annual percentage change in CT variables, age, baseline CPI and gender (n=81).
| Models | Variables in the model | HR | P Value |
|---|---|---|---|
| 1 | OFPRD | 0.95 | 0.002 |
| Baseline CPI | 1.05 | <0.001 | |
| Age | 0.99 | 0.800 | |
| Gender | 1.20 | 0.600 | |
| 2 | ASD | 0.97 | 0.001 |
| Baseline CPI | 1.05 | <0.001 | |
| Age | 0.98 | 0.300 | |
| Gender | 1.00 | 0.100 | |
| 3 | LH | 0.96 | 0.040 |
| Baseline CPI | 1.05 | <0.001 | |
| Age | 0.99 | 0.900 | |
| Gender | 0.97 | 0.940 | |
| 4 | ALV | 0.98 | 0.021 |
| Baseline CPI | 1.05 | 0.001 | |
| Age | 0.99 | 0.600 | |
| Gender | 1.26 | 0.600 | |
| 5 | Fibrosis progression | 1.03 | 0.800 |
| Baseline CPI | 1.05 | <0.001 | |
| Age | 0.99 | 0.700 | |
| Gender | 1.01 | 0.100 |
OFPRD, ASD & LH represent oblique fissure posterior retraction distance, aortosternal distance and lung height corrected for body habitus respectively. ALV represents automated total lung volume. CPI represents composite physiological index.