Table 2.
Symptoms reported by patients according to the spirometry diagnosis of COPD.
| No COPD N = 196 |
COPD (GOLD I) N = 18 |
COPD (GOLD ≥II) N = 32 |
Overall P values |
|
|---|---|---|---|---|
| Age (in year), mean (SD) | 54.97 (10.34) | 58.33 (10.59) | 59.88 (8.68) | 0.006 |
| Smoking pack years, mean (SD) | 31.26 (16.99) | 38.06 (10.59) | 44.59 (24.99) | 0.001 |
| FEV1, % predicted, mean (SD) | 90.88 (15.14) | 88.06 (7.89) | 60.92 (13.09) | <0.001 |
| FEV1/FVC %, mean (SD) | 82.43 (12.98) | 64.84 (3.90) | 58.56 (8.79) | <0.001 |
| Symptoms, n (%) | ||||
| Cough | 115 (58.67) | 11 (61.11) | 20 (62.50) | 0.908 |
| Cough with sputum | 75 (38.27) | 8 (44.44) | 16 (50.00) | 0.424 |
| Dyspnea MRC ≥ 2 scale | 127 (64.80) | 10 (55.56) | 24 (75.00) | 0.348 |
| Wheezing | 75 (38.27) | 8 (44.44) | 15 (46.88) | 0.599 |
| Respiratory infections* | 37 (18.88) | 3 (16.67) | 9 (28.17) | 0.448 |
| Number of symptoms | ||||
| 0 | 6 (3.06) | 0 (0.0) | 0 (0.00) | 0.456 |
| 1 | 59 (30.10) | 6 (33.33) | 6 (18.75) | 0.384 |
| 2 | 60 (30.61) | 7 (38.89) | 12 (37.50) | 0.604 |
| 3+ | 71 (36.22) | 5 (27.78) | 14 (43.75) | 0.517 |
*The infection rate refers to the respiratory infection in the last year.