|
|
|
| Spring, summer, and fall | Winter | p-value |
| Never-smoker | Male | N | 203 | 81 |
|
|
| (N = 284) | Age (years) | 68.2 ± 7.4 | 68.4 ± 5.7 | 0.79 |
|
|
| Height (cm) | 167.0 ± 6.0 | 167.0 ± 5.4 | 0.98 |
|
|
| Weight (kg) | 66.5 ± 9.4 | 66.7 ± 8.6 | 0.87 |
|
|
| BMI (kg/m2) | 23.8 ± 2.7 | 23.9 ± 2.5 | 0.84 |
|
|
| FVC (L) | 3.65 ± 0.70 | 3.52 ± 0.59 | 0.16 |
|
|
| FEV1 (L) | 2.70 ± 0.62 | 2.60 ± 0.58 | 0.21 |
|
|
| FEV1/FVC (%) | 74.0 ± 9.2 | 73.5 ± 9.1 | 0.64 |
|
|
| predFVC (%) | 96.2 ± 16.9 | 93.6 ± 14.2 | 0.22 |
|
|
| predFEV1 (%) | 103.5 ± 22.1 | 100.3 ± 21.0 | 0.27 |
|
|
| FEV1/FVC < 70 (%) | 24.6% (50/203) | 24.7% (20/81) | 0.99 |
|
| Female | N | 349 | 114 |
|
|
| (N = 463) | Age (years) | 67.9 ± 6.8 | 67.0 ± 8.2 | 0.28 |
|
|
| Height (cm) | 153.5 ± 5.9 | 153.5 ± 5.8 | 0.10 |
|
|
| Weight (kg) | 58.5 ± 9.1 | 58.9 ± 9.5 | 0.72 |
|
|
| BMI (kg/m2) | 24.8 ± 3.5 | 25.0 ± 3.9 | 0.63 |
|
|
| FVC (L) | 2.47 ± 0.46 | 2.50 ± 0.44 | 0.56 |
|
|
| FEV1 (L) | 1.96 ± 0.39 | 1.99 ± 0.38 | 0.43 |
|
|
| FEV1/FVC (%) | 79.0 ± 6.7 | 79.5 ± 6.5 | 0.46 |
|
|
| predFVC (%) | 94.2 ± 17.5 | 94.8 ± 15.7 | 0.74 |
|
|
| predFEV1 (%) | 102.8 ± 22.9 | 104.2 ± 20.3 | 0.57 |
|
|
| FEV1/FVC < 70 (%) | 6.6% (23/349) | 7.9% (9/114) | 0.63 |
| Ever-smoker | Male | N | 168 | 78 |
|
|
| (N = 246) | Age (years) | 68.6 ± 7.1 | 68.6 ± 7.0 | 1.00 |
|
|
| Height (cm) | 166.9 ± 6.2 | 166.3 ± 5.3 | 0.48 |
|
|
| Weight (kg) | 64.6 ± 8.8 | 63.9 ± 8.4 | 0.58 |
|
|
| BMI (kg/m2) | 23.2 ± 2.7 | 23.1 ± 2.6 | 0.84 |
|
|
| FVC (L) | 3.64 ± 0.71 | 3.50 ± 0.67 | 0.14 |
|
|
| FEV1 (L) | 2.57 ± 0.65 | 2.39 ± 0.62 | <0.05 |
|
|
| FEV1/FVC (%) | 70.3 ± 10.5 | 68.3 ± 11.9 | 0.18 |
|
|
| predFVC (%) | 96.6 ± 16.2 | 93.8 ± 17.1 | 0.21 |
|
|
| predFEV1 (%) | 98.7 ± 21.6 | 92.1 ± 22.2 | <0.05 |
|
|
| Smoking (PY) | 34.2 ± 21.1 | 29.5 ± 15.5 | 0.09 |
|
|
| FEV1/FVC < 70 (%) | 41.1% (69/168) | 43.6% (34/78) | 0.71 |