Table 6.

Diagnosis of periodontitis according to Page and Eke [27] in the study groups (HD, K).

Page and Eke Classification	Study Group (HD)		Control Group (K)		Total
No or slight inflammation	37	37%	67	67%	104
Moderate inflammation	42	42%	29	29%	71
Severe inflammation	21	21%	4	4%	25
Total	100		100		200
Pearson’s χ2	22.59		df = 2		p < 0.001
Spearman’s R rank	−0.33		t = −4928		p < 0.001