Table 1 Patient characteristics in this study (n = 192)
Without IP | With IP | P* | |
|---|---|---|---|
n = 152 | n = 40 | ||
Age, median (range), years, n (%) | 71 (42–95) | 73 (47–83) | 0.82 |
< 75 years | 98 (64.5) | 25 (62.5) | |
≥75 years | 54 (35.6) | 15 (37.5) | |
Gender, n (%) | |||
Male | 126 (82.9) | 37 (92.5) | 0.13 |
Female | 26 (17.1) | 3 (7.5) | |
Smoking status, n (%) | |||
Never | 8 (5.5) | 2 (5.0) | 0.94 |
Former/Current | 139 (91.4) | 37 (92.5) | |
ECOG PS, n (%) | |||
0/1 | 80 (52.6) | 20 (50.0) | 0.77 |
2/3/4 | 72 (47.4) | 21 (50.0) | |
Blood tests, mean ± SD | |||
Alb, g/dL | 3.6 ± 0.5 | 3.6 ± 0.4 | 0.35 |
LDH, IU/L | 476.7 ± 778.4 | 391.5 ± 293.5 | 0.72 |
CRP, mg/dL | 3.0 ± 5.0 | 3.3 ± 5.5 | 0.45 |
KL-6, U/mL | 437.2 ± 480.3 | 832.0 ± 701.2 | < 0.001 |
SP-D, U/mL | 62.6 ± 47.6 | 141.0 ± 91.0 | 0.005 |