Table 5

Effect of independent predictors on survival determined by multiple stepwise regression analysis

Predictor Hazard ratio 95% CI p value
Age1.0621.021 to 1.1040.003
TLC (% predicted)0.9760.956 to 0.9950.02
Tlco (% predicted) 0.9600.935 to 0.9860.003
t 0.5 F 0.7470.578 to 0.9640.03
  • TLC = total lung capacity; Tlco = carbon monoxide transfer factor;t 0.5 F= half time for fast component of bi-exponential DTPA clearance curve.