FEV1/FVC <0.7 (GOLD) | FEV1/FVC <1.645 SD below predicted (ATS/ERS) | ||||
---|---|---|---|---|---|
Value | 95% CI | Value | 95% CI | ||
Sensitivity | Non-smokers | 0.009 | −0.014–0.032 | 0.022 | −0.033–0.077 |
Ex-smokers | 0.070 | 0.017–0.124 | 0.138 | 0.025–0.251 | |
Current smokers | 0.087 | 0.021–0.153 | 0.117 | 0.013–0.220 | |
Specificity | Non-smokers | 1 | 1 | ||
Former smokers | 0.992 | 0.986–0.998 | 0.991 | 0.985–0.997 | |
Current smokers | 0.996 | 0.989–1.003 | 0.991 | 0.981–1.000 | |
PPV | Non-smokers | 1 | 1 | ||
Former smokers | 0.5 | 0.22–0.78 | 0.4 | 0.126–0.674 | |
Current smokers | 0.833 | 0.564–1.102 | 0.583 | 0.228–0.939 | |
NPV | Non-smokers | 0.941 | 0.928–0.955 | 0.976 | 0.967–0.985 |
Former smokers | 0.906 | 0.886–0.925 | 0.964 | 0.951–0.976 | |
Current smokers | 0.830 | 0.792–0.867 | 0.914 | 0.886–0.942 |