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Table 2 Intra class correlation coefficients for QLF metrics and mean metric values for each TF index score

From: Evaluating the use of fluorescent imaging for the quantification of dental fluorosis

QLF mETRIC (mean) TF SCORE Spearman’s rho Kendall’s tau b
0 1 2 3 4 5 P<0.0001
Area ch 0.070 0.097 0.177 0.248 0.317 0.402 .421 .342
ΔF ch 0.043 0.047 0.058 0.070 0.086 0.108 .349 .282
ΔQ ch 0.004 0.005 0.011 0.018 0.034 0.046 .410 .332