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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: J Periodontol. 2014 Dec;85(12):1684–1692. doi: 10.1902/jop.2014.140248

Table 6.

Discriminatory Abilities of the Periodontal Variables (PISA, PESA) and GCF Cytokine Levels to Predict PTB and LBW

LBW PTB
Variable Threshold AUC P* Threshold AUC P*
Periodontal
  PISA 100 0.6381 0.0257 200 0.5781 0.3109
  PESA 1,200 0.6098 0.0756 1,200 0.6006 0.1924
GCF cytokine
  TNF-α 2 0.5061 0.9271 3 0.5811 0.3415
  IL-1β 10 0.5377 0.6072 10 0.5541 0.5327
  IL-6 2 0.5889 0.0970 3 0.6186 0.1872
*

P value for comparison of AUC to null AUC of 0.50.