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Table 4 Comparison of the area under the ROC curve (AUC) for fluoride concentration

From: Big toenail and hair samples as biomarkers for fluoride exposure – a pilot study

Biomarker

AUC

Std. Error

P

95% Confidence Interval

Lower Bound

Upper Bound

Nail samples

0.889

0.050

< 0.001

0.791

0.987

Hair samples

0.762

0.075

=0.004

0.615

0.909

  1. ROC Receiver Operating Characteristics, AUC Area Under Curve
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BMC Oral Health

ISSN: 1472-6831

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