|
|
| Spring, summer, and fall | Winter | p-value |
| Male | N | 371 | 159 |
|
|
| Age (years) | 68.4 ± 7.3 | 68.5 ± 6.3 | 0.85 |
|
| Height (cm) | 166.9 ± 6.1 | 166.7 ± 5.3 | 0.62 |
|
| Weight (kg) | 65.6 ± 9.2 | 65.3 ± 8.6 | 0.73 |
|
| BMI (kg/m2) | 23.5 ± 2.8 | 23.5 ± 2.6 | 0.92 |
|
| FVC (L) | 3.64 ± 0.70 | 3.51 ± 0.63 | <0.05 |
|
| FEV1 (L) | 2.64 ± 0.64 | 2.50 ± 0.61 | <0.05 |
|
| FEV1/FVC (%) | 72.3 ± 10.0 | 70.9 ± 10.8 | 0.15 |
|
| predFVC (%) | 96.4 ± 16.6 | 93.7 ± 15.6 | 0.08 |
|
| predFEV1 (%) | 101.3 ± 22.0 | 96.3 ± 21.9 | <0.05 |
|
| Smoking (PY) | 14.7 ± 21.8 | 13.8 ± 18.1 | 0.64 |
|
| Smoker (%) | 45.3% (168/371) | 49.1% (78/159) | 0.43 |
|
| FEV1/FVC < 70 (%) | 32.1% (119/371) | 34.0% (54/159) | 0.67 |
| Female | N | 361 | 117 |
|
|
| Age (years) | 67.8 ± 6.9 | 67.0 ± 8.2 | 0.37 |
|
| Height (cm) | 153.7 ± 6.0 | 153.5 ± 5.8 | 0.86 |
|
| Weight (kg) | 58.5 ± 9.1 | 58.8 ± 9.4 | 0.75 |
|
| BMI (kg/m2) | 24.8 ± 3.6 | 25.0 ± 3.9 | 0.60 |
|
| FVC (L) | 2.47 ± 0.46 | 2.51 ± 0.44 | 0.44 |
|
| FEV1 (L) | 1.95 ± 0.40 | 1.99 ± 0.38 | 0.28 |
|
| FEV1/FVC (%) | 78.7 ± 6.9 | 79.5 ± 6.5 | 0.28 |
|
| predFVC (%) | 93.8 ± 17.5 | 95.0 ± 15.5 | 0.51 |
|
| predFEV1 (%) | 102.0 ± 23.2 | 104.3 ± 20.1 | 0.33 |
|
| Smoking (PY) | 0.7 ± 4.4 | 0.2 ± 1.9 | 0.10 |
|
| Smoker (%) | 3.3% (12/361) | 2.6% (3/117) | 0.68 |
|
| FEV1/FVC < 70 (%) | 7.2% (26/361) | 7.7% (9/117) | 0.86 |