Variables | Limited-stage | Extensive-stage | ||||
---|---|---|---|---|---|---|
n (%) | 2-Year rate (%) | P | n (%) | 2-Year rate (%) | P | |
Age (years)a | ||||||
≤ 68 | 55 (51) | 40 | 0.043 | 61 (50) | 18 | 0.007 |
> 68 | 52 (49) | 28 | 61 (50) | 7 | ||
Gender | ||||||
Male | 91 (85) | 31 | 0.095 | 104 (85) | 12 | 0.766 |
Female | 16 (15) | 50 | 18 (15) | 18 | ||
ECOG score | ||||||
0‒1 | 76 (71) | 41 | 0.223 | 82 (67) | 15 | < 0.001 |
≥ 2 | 11 (10) | 27 | 20 (16) | 5 | ||
Ever-smoker | ||||||
Yes | 95 (89) | 32 | 0.604 | 93 (76) | 7 | 0.068 |
No | 10 (9) | 56 | 27 (22) | 14 | ||
Body mass index (kg/m2)a | ||||||
≥ 23.6 | 55 (51) | 44 | 0.020 | 50 (41) | 18 | 0.021 |
< 23.6 | 43 (40) | 21 | 64 (53) | 10 | ||
No. of symptoms at diagnosis | ||||||
0 | 27 (25) | 48 | 0.040 | 26 (21) | 23 | 0.255 |
≥ 1 | 80 (75) | 29 | 96 (79) | 10 | ||
Clinical T stage | ||||||
T1‒2 | 44 (41) | 41 | 0.038 | 27 (22) | 15 | 0.777 |
T3‒4 | 41 (38) | 29 | 69 (57) | 12 | ||
Clinical N stage | ||||||
N0‒1 | 20 (19) | 50 | 0.036 | 5 (4) | 60 | 0.066 |
N2‒3 | 85 (79) | 30 | 109 (89) | 11 | ||
Extrathoracic metastasis | ||||||
No | 32 (26) | 19 | 0.147 | |||
Yes | 90 (74) | 10 | ||||
Definitive treatment | ||||||
Chemoradiotherapyb | 57 (53) | 44 | < 0.001 | 15 (12) | 27 | 0.072 |
Chemotherapy | 37 (35) | 11 | 99 (81) | 10 | ||
Othersc | 13 (12) | 54 | 8 (7) | 13 | ||
PCI | ||||||
Yes | 26 (24) | 50 | 0.018 | 17 (14) | 12 | 0.336 |
No | 81 (76) | 29 | 105 (86) | 13 | ||
Salvage treatment | ||||||
Chemoradiotherapyb | 15 (14) | 47 | 0.649 | 18 (15) | 44 | < 0.001 |
Chemotherapy | 16 (15) | 31 | 22 (18) | 9 | ||
Othersc | 10 (9) | 40 | 12 (10) | 17 | ||
No treatment | 65 (61) | 31 | 70 (57) | 4 |