| COPD | Non-COPD | Pc |
---|---|---|---|
Characteristics | |||
 No. of participants | 53 | 82 |  |
 No. of clinical visits | 153 | 256 |  |
 Age, mean (SD), y | 64.7 (6.6) | 58.2 (7.4) |  < 0.001 |
 Body mass index, mean (SD), kg/m2 | 24.5 (3.2) | 24.8 (3.4) | 0.57 |
 Male, No. (%) | 30 (56.6%) | 26 (31.7%) | 0.007 |
 High school or above, No. (%) | 31 (58.5%) | 47 (57.3%) | 0.84 |
 Monthly salary ≥ 5000 CNY, No. (%) | 8 (15.1%) | 13 (15.9%) | 0.32 |
 FEV1/FVC ratio, mean (SD), % | 56.5 (12.8) | 76.4 (5.4) |  < 0.001 |
 COPD medication usea, No. (%) | 91 (59.5%) | 0 (0%) |  < 0.001 |
 Aspirin usea, No. (%) | 13 (24.5%) | 22 (26.8%) | 0.92 |
Biomarkersb, geometric mean (IQR) | |||
 TxB2, ng/mL | 8.5 (4.2, 29.0) | 7.1 (5.1, 27.9) | 0.59 |
 12-HETE, ng/mL | 24.7 (14.7, 50.2) | 27.3 (18.4, 51.0) | 0.59 |
 15-HETE, ng/mL | 0.8 (0.5, 1.4) | 0.8 (0.5, 1.3) | 0.69 |
 IL-1β, pg/mL | 1.1 (0.6, 1.3) | 1.0 (0.6, 1.2) | 0.46 |
 IL-8, pg/mL | 13.6 (8.0, 22.7) | 15.3 (8.5, 24.0) | 0.45 |
 MCP-1, ng/mL | 0.48 (0.41, 0.64) | 0.48 (0.41, 0.62) | 0.96 |
 MIP-1α, pg/mL | 7.3 (1.4, 19.0) | 7.1 (1.8, 19.6) | 0.86 |
 MIP-1β, pg/mL | 36.0 (28.6, 56.4) | 38.6 (26.8, 67.1) | 0.66 |
 TNF-α, pg/mL | 10.5 (7.0, 13.8) | 11.4 (7.4, 16.6) | 0.43 |