Clinical Significance of IL-23 Regulating IL-17A and/or IL-17F Positive Th17 Cells in Chronic Periodontitis

Table 2

Correlation coefficients ( squared) between two distinct Th17 cells (IL-17A⁺IL-17F⁻ and IL-17A⁻IL-17F⁺ Th17) expression level and clinical parameters of CP and HC groups.

Groups	IL-17A^+IL-17F^− Th17		IL-17A^−IL-17F^+ Th17
	HC	CP	HC	CP
Probing depth (PD)	0.03	0.21^*	0.04	0.01
Attachment loss (AL)	0.08	0.17^*	0.009	0.15^*
Plaque index (PI)	0.06	0.05	0.09	0.08
Gingival index (GI)	0.10	0.02	0.03	0.11

Correlation is significant at < 0.05 level (Spearman correlation coefficient).