GOLD diagnostic standard (model 8) | |||
---|---|---|---|
 | Model-based predicted probability of COPD (95% CI) | ||
Performance characteristic (%) | ≥0.25 | ≥0.50 | ≥0.75 |
   Sensitivity | 90.9 (90.0-91.7) | 71.9 (70.6-73.2) | 35.7 (34.3-37.1) |
   Specificity | 40.5 (39.2-41.9) | 73.5 (72.3-74.8 | 92.2 (91.4-92.9) |
   PPV | 58.2 (57.0-59.3) | 71.2 (69.9-72.5) | 80.7 (78.9-82.4) |
   NPV | 83.0 (81.3-84.5) | 74.2 (72.9-75.4) | 61.1 (60.0-62.2) |
LLN diagnostic standard (model 8) | |||
 | Model-based predicted probability of COPD (95% CI) | ||
Performance characteristic (%) | ≥0.25 | ≥0.50 | ≥0.75 |
   Sensitivity | 83.1 (81.9-84.4) | 59.8 (58.2-61.4) | 7.5 (6.6-8.4) |
   Specificity | 55.9 (54.6-57.2) | 79.6 (78.6-80.6) | 98.8 (98.5-99.1) |
   PPV | 54.1 (52.7-55.4) | 64.6 (63.0-66.3) | 80.1 (75.5-84.2) |
   NPV | 84.2 (83.0-85.3) | 76.0 (75.0-77.1) | 63.1 (62.1-64.1) |