Predictive values (95% CI) of BPD for neurodevelopmental impairment at mean (SD) corrected age 23.1 (3.6) months
| BPD | Mild BPD at 36 PMA | Moderate BPD at 36 PMA | Severe BPD at 36 PMA | Mild BPD at 40 PMA | Moderate BPD at 40 PMA | Severe BPD at 40 PMA | |
| Sensitivity | 67% (57% to 76%) | 47% (35% to 61%) | 40% (26% to 54%) | 33% (20% to 48%) | 59% (47% to 70%) | 16% (6% to 31%) | 30% (18% to 46%) |
| Specificity | 43% (39% to 48%) | 54% (49% to 59%) | 76% (71% to 81%) | 86% (81% to 90%) | 46% (42% to 50%) | 91% (87% to 94%) | 96% (93% to 98%) |
| Positive predictive value | 18% (16% to 21%) | 13% (10% to 17%) | 23% (17% to 31%) | 31% (22% to 43%) | 15% (12% to 18%) | 22% (11% to 40%) | 61% (42% to 77%) |
| Negative predictive value | 87% (84% to 90%) | 87% (84% to 90%) | 87% (85% to 89%) | 87% (85% to 89%) | 87% (84% to 90%) | 87% (86% to 89%) | 87% (85% to 89%) |
| Accuracy | 47% | 53% | 70% | 78% | 48% | 81% | 85% |
The predictive values of each form of BPD (BPD, mild, moderate, severe) have been calculated with ‘No BPD’ as reference.
BPD, bronchopulmonary dysplasia; PMA, postmenstrual age.