Table 3.
Summary of the NPA PCR Results in Relation to COPD GOLD Stages*
| NPA Findings |
All Cases (n = 245) |
GOLD Stage |
||
|---|---|---|---|---|
| Stage 1–2, FEV1 ≥ 50% of Predicted (n = 49) | Stage 3, FEV1 ≥ 30 to 50% of Predicted (n = 101) | Stage 4, FEV1 < 30% of Predicted (n = 95) | ||
| Negative | 191 (77.9) | 37 (75.5) | 80 (79.2) | 74 (77.8) |
| Influenza A | 18 (7.3) | 3 (6.1) | 8 (7.9) | 7 (7.3) |
| Coronavirus OC43 | 12 (4.9) | 2 (4.1) | 4 (4.0) | 6 (6.3) |
| Rhinovirus | 8 (3.3) | 4 (8.2) | 2 (2.0) | 2 (2.1) |
| Influenza B | 6 (2.4) | 2 (4.1) | 1 (1.0) | 3 (3.2) |
| RSV | 6 (2.4) | 0 (0) | 3 (3.0) | 3 (3.2) |
| Adenovirus | 1 (0.4) | 0 (0) | 1 (1.0) | 0 (0) |
| Metapneumovirus | 1 (0.4) | 0 (0) | 1 (1.0) | 0 (0) |
| Parainfluenza type 1 | 1 (0.4) | 0 (0) | 0 (0) | 0 (0) |
| Parainfluenza type 2 | 1 (0.4) | 0 (0) | 1 (1.0) | 0 (0) |
| Parainfluenza type 3 | 1 (0.4) | 0 (0) | 0 (0) | 1 (1.1) |
| Parainfluenza type 4 | 1 (0.4) | 0 (0) | 0 (0) | 1 (1.1) |
*
Data are presented as No. (%).