Model | COPD | Non-COPD | Pinteraction | ||
---|---|---|---|---|---|
Change, % (95% CI) | P | Change, % (95% CI) | P | ||
UFPs | 25.4 (12.8, 39.4) |  < 0.001 | 11.2 (1.1, 22.3) | 0.03 | 0.01 |
UFPs + PM2.5 | 22.4 (9.2, 37.3) |  < 0.001 | 10.5 (0.4, 21.7) | 0.04 | 0.04 |
UFPs + NO2 | 23.6 (9.9, 38.9) |  < 0.001 | 11 (0.8, 22.3) | 0.04 | 0.03 |
UFPs + SO2 | 22.3 (9.1, 37.1) |  < 0.001 | 8.9 (− 1.7, 20.6) | 0.10 | 0.01 |
UFPs + CO | 23.1 (10.2, 37.6) |  < 0.001 | 10 (− 0.2, 21.2) | 0.06 | 0.02 |
UFPs + O3 | 25.7 (13, 39.8) |  < 0.001 | 12.4 (1.9, 24) | 0.02 | 0.02 |
PM2.5 | 7.4 (1.9, 13.1) | 0.008 | 0.7 (− 7.6, 9.9) | 0.87 | 0.11 |
PM2.5 + UFPs | 5.7 (0.3, 11.4) | 0.04 |  − 0.4 (− 8.6, 8.5) | 0.93 | 0.13 |
PM2.5 + NO2 | 5.1 (− 4.6, 15.8) | 0.31 |  − 1 (− 11.9, 11.2) | 0.86 | 0.13 |
PM2.5 + SO2 | 3.9 (− 2.7, 11) | 0.25 |  − 3.8 (− 13.3, 6.7) | 0.46 | 0.06 |
PM2.5 + CO | 4.1 (− 4, 12.8) | 0.33 |  − 3.6 (− 14.7, 8.9) | 0.56 | 0.07 |
PM2.5 + O3 | 7.5 (1.5, 13.7) | 0.01 | 0.8 (− 7.8, 10.1) | 0.86 | 0.11 |