Inconclusive results | Positive results | Negative results | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Screening item | No | % | No | % | No | % | No of conclusive results | Proportion of detected gold standard “positive” cases* | Sensitivity | Specificity |
*Proportion of detected cases with positive gold standard among all cases with positive gold standard in children with conclusive result for the screening item (equal to sensitivity). | ||||||||||
Inspection | 0 | 0.0 | 2 | 0.2 | 1091 | 99.8 | 1093 | 1/26 | 3.8% | 99.9% |
Ocular motility/head posture | 47 | 4.3 | 12 | 1.1 | 1034 | 94.6 | 1046 | 3/25 | 12.0% | 99.1% |
Cover testing | 51 | 4.7 | 13 | 1.2 | 1029 | 94.1 | 1042 | 4/25 | 16.0% | 99.1% |
Visual acuity | 118 | 10.8 | 63 | 5.8 | 912 | 83.4 | 975 | 19/22 | 86.4% | 95.4% |
Cumulated | 118 | 10.8 | 79 | 7.2 | 896 | 82.0 | 975 | 20/22 | 90.9% | 93.8% |