From: GLI 2012 equations define few spirometric anomalies in the general population: the PneumoLaus study
Group 1: FEV1/FVC < LLN | Group 2: FEV1/FVC > LLN but < 0.7 | Group 3: FEV1/FVC > LLN and > 0.7 | p-value Group 1 vs. 2 | p-value Group 2 vs. 3 | p-value Group 1 vs. 3 | |
---|---|---|---|---|---|---|
N | 188 (5.6) | 224 (6.7) | 2930 (87.7) | |||
Chronic cough | 21 (11.2) | 11 (4.9) | 113 (3.9) | 0.018 | 0.428 | < 0.001 |
Chronic sputum production | 18 (9.6) | 7 (3.1) | 56 (1.9) | 0.006 | 0.208 | < 0.001 |
Chronic dyspnoea mMRC ≥2 | 8 (4.3) | 5 (2.2) | 36 (1.2) | 0.241 | 0.199 | 0.001 |