Table 2 Results of Cox regression analysis

Transfer (yes vs no)

1.00 (0.93;1.08)

0.81 (0.68;0.96)^a

0.84 (0.77;0.92)^a

Age (high vs low)

0.89 (0.86;0.92)^a

0.96 (0.91;1.01)

0.90 (0.87;0.94)^a

Sex (males vs females)

1.00 (0.95;1.06)

1.03 (1.01;1.05)^a

1.02 (0.99;1.06)

Stage (high vs Low)

1.12 (1.08;1.16)^a

1.04 (1.00;1.08)

1.43 (1.30;1.56)^a

Treatment (cur vs pal)

1.32 (1.24;1.41)^a

0.86 (0.78;0.95)^a

1.11 (1.00;1.24)

CCI (increasing)

0.93 (0.92;0.95)^a

0.94 (0.91;0.98)^a

0.91 (0.88;0.93)^a

ECOG (increasing)

1.04 (1.01;1.08)

0.98 (0.96;1.00)

1.01 (0.99;1.04)

FEV1 (increasing)

0.99 (0.95;1.03)

1.03 (0.99;1.06)

1.02 (0.99;1.05)

Year (increasing)

0.97 (0.93;1.02)

1.15 (1.08;1.21)

1.08 (1.02;1.14)