| α1-Antitrypsin | Orosomucoid | Ceruloplasmin | Fibrinogen | Haptoglobin | |
| All men (n = 5247) | |||||
| FEV1 (% predicted) | −0.13 | −0.16 | −0.14 | −0.13 | −0.17 |
| FVC (% predicted) | −0.12 | −0.13 | −0.12 | −0.13 | −0.15 |
| α1-Antitrypsin | 1 | 0.34 | 0.33 | 0.32 | 0.26 |
| Orosomucoid | 1 | 0.54 | 0.41 | 0.44 | |
| Ceruloplasmin | 1 | 0.37 | 0.34 | ||
| Fibrinogen | 1 | 0.43 | |||
| Non-smokers (n = 2749) | |||||
| FEV1 (% predicted) | −0.08 | −0.13 | −0.09 | −0.10 | −0.10 |
| FVC (% predicted) | −0.10 | −0.12 | −0.10 | −0.11 | −0.11 |
| α1-Antitrypsin | 1 | 0.27 | 0.27 | 0.26 | 0.18 |
| Orosomucoid | 1 | 0.52 | 0.37 | 0.38 | |
| Ceruloplasmin | 1 | 0.33 | 0.28 | ||
| Fibrinogen | 1 | 0.35 |
All correlations are significant at the 0.01 level (two-tailed).
FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.