OLIN reference values using LLN for COPD and restrictive spirometry | | | |
Non-COPD | 1462 | 1 | 1 |
COPD grade 1 | 56 | 1.23 (0.35–4.25) | 0.58 (0.26–1.26) |
COPD grade 2 | 114 | 1.69 (0.78–3.66) | 0.53 (0.30–0.94) |
COPD grades 3 and 4 | 35 | 3.38 (1.16–9.82) | 0.52 (0.20–1.36) |
Berglund reference values, fixed ratio | | | |
Non-COPD | 2342 | 1 | 1 |
COPD grade 1 | 75 | 1.35 (0.67–2.71) | 0.41 (0.26–0.66) |
COPD grade 2 | 183 | 1.49 (0.71–3.14) | 0.92 (0.60–1.40) |
COPD grades 3 and 4 | 52 | 3.66 (1.24–10.84) | 0.52 (0.22–1.25) |
ECSC reference values, fixed ratio | | | |
Non-COPD | 1590 | 1 | 1 |
COPD grade 1 | 199 | 1.14 (0.58–2.25) | 0.40 (0.26–0.63) |
COPD grade 2 | 157 | 1.46 (0.70–3.0) | 0.86 (0.56–1.30) |
COPD grades 3 and 4 | 37 | 3.47 (1.20–10.06) | 0.48 (0.20–1.17) |
GLI reference values using LLN | | | |
Non-COPD | 2614 | 1 | 1 |
COPD grade 1 | 63 | 0.91 (0.27–3.10) | 0.34 (0.19–0.61) |
COPD grade 2 | 142 | 1.30 (0.55–3.06) | 0.87 (0.61–1.26) |
COPD grades 3 and 4 | 42 | 2.85 (0.90–9.03) | 0.54 (0.28–1.05) |
Analyses on random sample with fixed ratio and GLI reference values | | | |
Non-COPD | 573 | 1 | 1 |
COPD grade 1 | 75 | 1.77 (0.65–4.87) | 0.46 (0.22–0.98) |
COPD grade 2 | 53 | 1.42 (0.41–4.95) | 0.70 (0.31–1.58) |
COPD grades 3 and 4 | 9 | 2.91 (0.31–27.76) | 0.80 (0.13–4.80) |