Results of survival analysis
Characteristic | Median PFS (95% CI, wk) | P | Hazard ratio (95% CI) | P | Median OS (95% CI, wk) | P | Hazard ratio (95% CI) | P | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age (y) | ||||||||||||||||
≤60 | 11.1 (7.4-19.0) | 0.987 | — | 30.9 (21.6-55.3) | 0.610 | — | ||||||||||
>60 | 12.0 (6.9-19.0) | 30.0 (17.4-46.0) | ||||||||||||||
Sex | ||||||||||||||||
Male | 10.1 (6.9-16.6) | 0.427 | — | 25.3 (19.0-36.7) | 0.305 | — | ||||||||||
Female | 13.0 (6.9-38.0) | 43.6 (25.6-102.0) | ||||||||||||||
Stage | ||||||||||||||||
IIIB | 7.6 (2.4-15.4) | 0.105 | — | 20.4 (8.7-31.0) | 0.120 | — | ||||||||||
IV | 12.0 (8.3-20.4) | 32.9 (22.0-56.6) | ||||||||||||||
Smoking history | ||||||||||||||||
Never | 25.6 (9.6-38.0) | 0.002 | Reference | 0.012 | 46.0 (25.6-85.4) | 0.043 | Reference | 0.046 | ||||||||
Ever | 8.6 (4.7-12.3) | 1.9 (1.2-3.2) | 22.0 (15.3-30.9) | 1.9 (1.0-3.4) | ||||||||||||
Histopathology | ||||||||||||||||
Adenocarcinoma | 18.0 (9.6-29.4) | 0.003 | Reference | 0.061 | 37.6 (21.6-85.4) | 0.009 | Reference | 0.045 | ||||||||
Other | 8.1 (4.7-13.0) | 1.7 (1.0-2.9) | 21.9 (12.1-31.0) | 1.9 (1.0-3.7) | ||||||||||||
Performance status | ||||||||||||||||
0-1 | 13.3 (8.6-20.4) | 0.175 | Reference | 0.067 | 54.1 (26.1-85.4) | 0.002 | Reference | <0.001 | ||||||||
2-3 | 8.6 (6.3-16.0) | 1.6 (1.0-2.5) | 18.3 (10.4-28.6) | 3.3 (1.8-5.8) | ||||||||||||
Prior treatment | ||||||||||||||||
No | 15.4 (>4.7) | 0.511 | — | 28.6 (>12.1) | 0.911 | — | ||||||||||
Yes | 11.1 (7.6-16.6) | 30.9 (21.6-43.6) | ||||||||||||||
SUV | ||||||||||||||||
Low (<6.2) | 33.1 (13.0-58.9) | 0.003 | Reference | 0.012 | 60.4 (29.1-128.9) | 0.011 | Reference | 0.043 | ||||||||
High (≥6.2) | 8.6 (6.7-13.0) | 2.3 (1.2-4.5) | 21.9 (17.4-32.9) | 2.2 (1.0-4.5) |