New COPD | Confirmed COPD | |
GOLD criteria 2007 | ||
GOLD I: mild | 1 (1.2) | 0 (0.0) |
GOLD II: moderate | 77 (91.6) | 40 (80.0) |
GOLD III: severe | 5 (6.0) | 9 (18.0) |
GOLD IV: very severe | 1 (1.2) | 1 (2.0) |
GOLD criteria 2013 | ||
A: low risk, fewer symptoms | 9 (10.7) | 4 (8.0) |
B: low risk, more symptoms | 69 (82.1) | 36 (72.0) |
C: high risk, fewer symptoms | 0 (0.0) | 0 (0.0) |
D: high risk, more symptoms | 6 (7.2) | 10 (20.0) |
Data are presented as n (%). New COPD: no diagnosis of COPD but COPD according to panel; confirmed COPD: diagnosis of COPD and COPD according to panel. GOLD criteria 2007 [15]: severity grading of COPD based on airflow limitation only: GOLD I, forced expiratory volume in 1 s (FEV1) >80% predicted; GOLD II, FEV1 <50% to ≤80% predicted; GOLD III, FEV1 <30% to ≤50% predicted; GOLD IV, FEV1 ≤30% predicted. GOLD criteria 2013 [1]: severity grading of COPD based on symptoms (assessed with Medical Research Council (MRC) dyspnoea scale) and airflow limitation: low risk, GOLD I–II; high risk, GOLD III–IV; fewer symptoms, MRC dyspnoea score 0–1; more symptoms: MRC dyspnoea score ≥2.