Table 4

Automated evaluation results of the Quantitative Light Fluorescent (QLF) images for fluorosis compared to scores obtained from the Polarized White Light (PWL) images for the upper left central incisor
QLF METRIC (mean) TF SCORE (PWL from Examiner 1) Spearman’s rho Kendall’s tau b
0 1 2 3 4 5 6 7 P < 0.001
% Area 17.20 16.50 22.89 30.10 44.12 49.67 42.31 42.71 .782 .644
Δ F 0.0530 0.0470 0.0560 0.0660 0.0950 0.1216 0.0843 0.0922 .738 .600
Δ Q 0.0125 0.0082 0.0135 0.0203 0.0468 0.0654 0.0371 0.0394 .780 .641
DEANS SCORE (PWL from Examiner 4)
Normal Questionable Very Mild Mild Moderate Severe
% Area 13.78 13.79 18.44 25.98 34.24 48.03 .873 .726
Δ F 0.0446 0.0418 0.0517 0.0606 0.0732 0.1106 .808 .656
Δ Q 0.0062 0.0061 0.0097 0.0164 0.0270 0.0590 .861 .713

Pretty et al.

Pretty et al. BMC Public Health 2012 12:366   doi:10.1186/1471-2458-12-366

Open Data