Table 5 Multivariate analysis for overall survival, disease free survival, and distant metastases

FT Group

 B-FT vs. NO-FT

6.0 (2.0 – 18.6)

 DA-FT vs. NO-FT

1.5 (0.4 – 5.4)

Age (years)

 ≥50 vs. < 50

2.1 (0.8 – 5.3)

Smoking

 <20 pack-years vs. never smoker

3.6 (0.8 – 16.9)

 ≥20 pack-years vs. never smoker

5.0 (1.6 – 15.3)

Disease Free Survival

FT Group

 B-FT vs. NO-FT

4.7 (1.7 – 13.1)

 DA-FT vs. NO-FT

1.3 (0.4 – 4.0)

Age (years)

 ≥50 vs. < 50

2.3 (1.0 – 5.4)

Smoking

 <20 pack-years vs. never smoker

2.2 (0.5 – 9.5)

 ≥20 pack-years vs. never smoker

3.8 (1.4 – 10.6)

Distant Metastases Free Survival

Group

 B-FT vs. NO-FT

0.91 (0.17 – 5.02)

 DA-FT vs. NO-FT

0.95 (0.21 – 4.27)

Age (years)

 ≥50 vs. < 50

3.7 (0.8 – 17.8)