Variable | PM2.5 The day before hospitalization | |||||
---|---|---|---|---|---|---|
< 25 mg/L | F/t | p | ≥ 25 mg/L | F/t | p | |
GOLD classes | ||||||
 Moderate | 12.57 ± 1.62 | 0.488 | 0.784 | 12.71 ± 1.10 | 9.683 | 0.008 |
 Severe | 12.67 ± 3.37 |  |  | 12.05 ± 2.10 |  |  |
 Very severe | 12.50 ± 1.76 |  |  | 11.75 ± 1.47 |  |  |
Age years | ||||||
 < 65 | 12.01 ± 4.10 | 1.146 | 0.255 | 11.92 ± 2.03 | 0.627 | 0.531 |
 ≥ 65 | 12.81 ± 2.23 |  |  | 12.09 ± 1.83 |  |  |
Sex | ||||||
 Female | 12.36 ± 1.00 | 0.406 | 0.686 | 11.77 ± 1.81 | 0.924 | 0.357 |
 Male | 12.67 ± 3.01 |  |  | 12.05 ± 1.88 |  |  |
BMI (kg/m2) | ||||||
 < 18.5 | 11.35 ± 2.43 | 0.946 | 0.347 | 11.62 ± 1.09 | 1.213 | 0.226 |
 ≥ 18.5 | 12.69 ± 2.78 |  |  | 12.09 ± 1.97 |  |  |
Current smoker | ||||||
 Yes | 13.13 ± 3.70 | 0.450 | 0.654 | 12.01 ± 1.91 | 0.378 | 0.71 |
 No | 12.60 ± 2.72 |  |  | 12.14 ± 1.79 |  |  |
Passive smoking | ||||||
 Yes | 12.46 ± 2.41 | 0.367 | 0.715 | 12.11 ± 1.75 | 0.392 | 0.695 |
 No | 12.69 ± 2.93 |  |  | 12.00 ± 2.13 |  |  |
Use of statins | ||||||
 Yes | 13.49 ± 3.16 | 1.126 | 0.263 | 12.17 ± 1.71 | 0.441 | 0.659 |
 No | 12.49 ± 2.70 |  |  | 12.00 ± 2.49 |  |  |
Inhaled corticosteroids | ||||||
 Yes | 12.67 ± 2.90 | 0.549 | 0.585 | 12.00 ± 1.76 | 0.570 | 0.569 |
 No | 12.18 ± 1.44 |  |  | 12.20 ± 2.51 |  |  |
Comorbidities | ||||||
 Hypertension | ||||||
  Yes | 13.11 ± 2.13 | 0.988 | 0.326 | 12.14 ± 1.40 | 0.603 | 0.547 |
  No | 12.26 ± 3.11 |  |  | 11.98 ± 2.10 |  |  |
 Coronary heart disease | ||||||
 Yes | 13.16 ± 1.82 | 1.108 | 0.271 | 12.15 ± 2.31 | 0.549 | 0.584 |
 No | 12.42 ± 3.01 |  |  | 11.99 ± 1.74 |  |  |
 Diabetes | ||||||
 Yes | 13.05 ± 1.51 | 0.581 | 0.563 | 12.34 ± 1.38 | 1.026 | 0.306 |
 No | 12.55 ± 2.91 |  |  | 11.98 ± 1.96 |  |  |
 Asthma | ||||||
 Yes | 12.84 ± 1.05 | 0.243 | 0.809 | 11.64 ± 1.36 | 0.949 | 0.344 |
 No | 12.59 ± 2.88 |  |  | 12.07 ± 1.93 |  |  |