Comparison of Oral Microbe Quantities from Tongue Samples and Subgingival Pockets

Table 2

Spearman’s correlation coefficients (; 95% confidence intervals) between clinical periodontal variables and relative abundances from tongue scrapings (on the subject level).

(95% CI)	Tongue scraping
	Mean CAL ()	Mean PD ()
P. gingivalis	0.26 (0.14, 0.38)	0.15 (0.03, 0.28)
A. actinomycetemcomitans	0.24 (0.12, 0.36)	0.23 (0.11, 0.35)
F. nucleatum	0.23 (0.11, 0.35)	0.25 (0.13, 0.37)
S. sanguinis	−0.01 (−0.14, 0.11)	−0.001 (−0.13, 0.13)
Archaea	−0.11 (−0.24, 0.01)	−0.11 (−0.23, 0.02)
% Archaea	−0.10 (−0.23, 0.03)	−0.15 (−0.27,−0.02)
Total bacteria	−0.17 (−0.29, −0.04)	−0.08 (−0.20, 0.05)

PD, probing depth; CAL, clinical attachment level; , Spearman’s correlation coefficient; 95% CI, 95% confidence interval.