Leisure time physical activity | N = 56,740 | Low PM2.5 (≤ 10th %)a | N = 56,757 | High PM2.5 (≥ 90th %)a | ||
---|---|---|---|---|---|---|
% difference | P | % difference | P | |||
FVC | ||||||
 Low PA | 10,324 | 0.21 (− 0.10, 0.52) | 0.192 | 12,022 | 0.26 (− 0.02, 0.54) | 0.072 |
 Moderate PA | 10,946 | 0.50 (0.17, 0.83) | 0.003 | 11,470 | 0.41 (0.09, 0.72) | 0.010 |
High PAb | ||||||
 1st quartile (16.5–22.8) | 2777 | 1.27 (0.72, 1.81) | < 0.001 | 1940 | 0.76 (0.13, 1.40) | 0.018 |
 2nd quartile (22.8–24.8) | 1343 | 0.84 (0.14, 1.56) | 0.019 | 1433 | 1.06 (0.41, 1.71) | 0.001 |
 3rd quartile (24.8–35.8) | 3062 | 1.12 (0.60, 1.64) | < 0.001 | 2802 | 0.58 (0.06, 1.10) | 0.030 |
 4th quartile (≥ 35.8) | 3105 | 1.82 (1.29, 2.36) | < 0.001 | 2028 | 0.92 (0.33, 1.52) | 0.002 |
 Per 10 MET-h | – | 0.27 (0.20, 0.35) | < 0.001 | – | 0.22 (0.14, 0.29) | < 0.001 |
FEV1 | ||||||
 Low PA | 10,324 | 0.20 (− 0.11, 0.51) | 0.209 | 12,022 | 0.05 (− 0.18, 0.29) | 0.657 |
 Moderate PA | 10,946 | 0.60 (0.26, 0.93) | < 0.001 | 11,470 | 0.48 (0.22, 0.75) | < 0.001 |
High PAb | ||||||
 1st quartile (16.5–22.8) | 2777 | 1.38 (0.83, 1.94) | < 0.001 | 1940 | 1.35 (0.82, 1.88) | < 0.001 |
 2nd quartile (22.8–24.8) | 1343 | 0.72 (0.01, 1.44) | 0.048 | 1433 | 0.95 (0.41, 1.49) | 0.001 |
 3rd quartile (24.8–35.8) | 3062 | 1.54 (1.01, 2.07) | < 0.001 | 2802 | 1.11 (0.67, 1.55) | < 0.001 |
 4th quartile (≥ 35.8) | 3105 | 1.59 (1.05, 2.14) | < 0.001 | 2028 | 1.06 (0.56, 1.57) | < 0.001 |
 10 MET-h | – | 0.29 (0.21, 0.37) | < 0.001 | – | 0.21 (0.13, 0.29) | < 0.001 |
MMEF | ||||||
 Low PA | 10,324 | − 0.06 (−0.54, 0.42) | 0.801 | 12,022 | 0.17 (− 0.22, 0.56) | 0.392 |
 Moderate PA | 10,946 | 0.49 (− 0.02, 1.00) | 0.059 | 11,470 | 0.53 (0.09, 0.97) | 0.019 |
High PAb | ||||||
 1st quartile (16.5–22.8) | 2777 | 2.06 (1.21, 2.91) | < 0.001 | 1940 | 1.69 (0.81, 2.57) | < 0.001 |
 2nd quartile (22.8–24.8) | 1343 | 1.50 (0.39, 2.62) | 0.008 | 1433 | 0.60 (− 0.29, 1.49) | 0.189 |
 3rd quartile (24.8–35.8) | 3062 | 1.91 (1.10, 2.72) | < 0.001 | 2802 | 0.44 (− 0.29, 1.17) | 0.243 |
 4th quartile (≥ 35.8) | 3105 | 1.37 (0.54, 2.20) | 0.001 | 2028 | 0.52 (− 0.31, 1.36) | 0.221 |
 10 MET-h | – | 0.42 (0.30, 0.54) | < 0.001 | – | 0.10 (− 0.03, 0.23) | 0.125 |