Comparison of predicted versus actual deaths or moderate to severe neurodevelopmental impairment
| Gestational age | Actual death | Predicted death or NDI probability, (%) | |||||
| <20% | 20%–39.9% | 40%–59.9% | 60%–79.9% | ≥80% | Total | ||
| 22 weeks | Yes | NA | NA | NA | NA | 8 (80) | 8 (80) |
| No | NA | NA | NA | NA | 2 (20) | 2 (20) | |
| Total | NA | NA | NA | NA | 10(100) | 10(100) | |
| 23 weeks | Yes | 1 (100) | NA | 11 (68.8) | NA | 48 (66.7) | 60 (66.7) |
| No | NA | 1 (100) | 5 (31.3) | NA | 24 (33.3) | 30 (33.3) | |
| Total | 1 (100) | 1 (100) | 16(100) | NA | 72(100) | 90(100) | |
| 24 weeks | Yes | 1 (50) | 2 (100) | 22 (41.5) | 98 (60.9) | 35 (70) | 158 (59) |
| No | 1 (50) | NA | 31 (58.5) | 63 (39.1) | 15 (30) | 110 (41) | |
| Total | 2 (100) | 2 (100) | 53(100) | 161(100) | 50(100) | 268(100) | |
| 25 weeks | Yes | 2 (22.2) | 25 (32.9) | 58 (39.7) | 43 (41.7) | 9 (75) | 137 (39.6) |
| No | 7 (77.8) | 51 (67.1) | 88 (60.3) | 60 (58.3) | 3 (25) | 209 (60.4) | |
| Total | 9 (100) | 76(100) | 146(100) | 103(100) | 12(100) | 346(100) | |
| 22–25 weeks | Yes | 4 (33.3) | 27 (34.6) | 80 (40) | 152 (54.3) | 100 (69.4) | 363 (50.8) |
| No | 8 (66.7) | 51 (65.4) | 120 (60) | 128 (45.7) | 44 (30.6) | 351 (49.2) | |
| Total | 12(100) | 78(100) | 200(100) | 280(100) | 144(100) | 714(100) | |
NDI, neurodevelopmental impairment.