| IPF | SAR | HS |  |
---|---|---|---|---|
N | 36 | 18 | 20 | Â |
Sex (male: female) | 18:8 | 8:10 P = 0.073 | 17:3 P = 0.339 | P = 0.004 |
Age (years old) | 67.6 ± 8.0 | 53.7 ± 16.2 P < 0.001 | 28.2 ± 6.3 P < 0.001 | P < 0.001 |
Smoking status (current: ex-: never smoker) | 7: 20: 9 | 4: 8: 6 P = 0.528 | 8: 0: 12 P < 0.001 | P < 0.001 |
BALF recovery (%) | 51.7 ± 16.5 | 57.9 ± 12.5 P = 0.513 | 66.1 ± 22.4 P = 0.001 | P = 0.002 |
Serum SP-A level (ng/ml) | 84.5 (55.5 – 115.8) | 33.3 (26.1 – 52.0) P < 0.001 | - |  |
Serum SP-D level (ng/ml) | 272.0 (172.0 – 441.8) | 75.0 (48.8 – 97.3) P < 0.001 | - |  |
BALF SP-A level (ng/ml) | 1275.0 (581.0 – 2672.5) | 1600.0 (972.0 – 3220.0) | 1978.0 (1380.0 – 3749.0) | P = 0.245 |
BALF SP-D level (ng/ml) | 379.0 (223.8 – 570.8) | 704.5 (389.3 – 967.5) P = 0.003 | 667.0 (391.0 – 1219.0) P = 0.003 | P < 0.001 |
BALF/serum ratio of SP-A levels | 19.1 (6.9 – 41.6) | 51.2 (18.5 – 103.8) P = 0.01 | - |  |
BALF/serum ratio of SP-D levels | 1.3 (0.7 – 2.4) | 7.8 (4.7 – 20.1) P < 0.001 | - |  |