Table 5. Correlation between P. gingivalis counts and periodontal parameters in case and control groups.

Groups	†Periodontal Parameters		P. gingivalis
			r*	p
Case (PKD) (n=43)	IP	0.75	0.80	<0.001
	PD>4 mm	0.72	0.82	<0.001
	CAL>3 mm	0.43	0.73	<0.001
	BOP	0.72	0.80	<0.001
Control (n=43)	IP	0.52	0.48	0.012
	PD>4 mm	0.43	0.64	0.023
	CAL>3 mm	0.22	0.52	0.062
	BOP	0.16	0.42	0.001

* Spearman correlation coefficient; ^† Mean number of sites.