Sensitivity and specificity for VAD threshold of 20% with identified U5MR thresholds
| Cut-off | Sensitivity (CLD) | Specificity (CLD) |
| 35 | 78.6 (0.30) | 0.66 (0.32) |
| 40 | 81.1 (0.27) | 82.8 (0.30) |
| 45 | 79.5 (0.27) | 85.2 (0.30) |
| 50 | 77.5 (0.28) | 85.7 (0.31) |
Sensitivity and specificity values approximating 80% or above were considered desirable to reliably identify countries with significant VAD, identified in bold italics.
Rows in bold italics show U5MR thresholds offering values optimizing both sensitivity and specificity, in this case approximating >=80% for both.
CLD, Confidence limit differences; U5MR, under 5 mortality rates; VAD, vitamin A deficiency.