Table 2.

Accuracy in terms of sensitivity and specificity of examiners using the International Caries Detection and Assessment System (ICDAS) in detecting caries lesions in primary teeth during training and calibration session for epidemiological survey

	Mean	SD	Range
All lesions*
Occlusal surfaces
Sensitivity	0.724	0.098	0.583 – 0.917
Specificity	0.844	0.239	0.250 – 1.000
Buccal/lingual surfaces
Sensitivity	0.635	0.189	0.231 – 0.923
Specificity	0.943	0.042	0.818 – 0.992
Proximal surfaces
Sensitivity	0.658	0.107	0.500 – 0.833
Specificity	0.927	0.051	0.837 – 0.978
More advanced lesions**
Occlusal surfaces
Sensitivity	0.563	0.072	0.500 – 0.700
Specificity	0.920	0.097	0.667 – 1.000
Buccal/lingual surfaces
Sensitivity	0.670	0.249	0.286 – 1.000
Specificity	0.985	0.015	0.945 – 1.000
Proximal surfaces
Sensitivity	0.838	0.063	0.706 – 0.941
Specificity	0.985	0.011	0.949 – 0.991

SD = Standard deviation;

*score 0 of ICDAS = sound; scores 1 to 6 of ICDAS = decayed;

**scores 0 to 2 of ICDAS = sound; scores 3 to 6 of ICDAS = decayed.