The classification results of the discriminant analysis (N = 80).

Table 5: The classification results of the discriminant analysis (N = 80).

Groups			Predicted Group Membership			Total
Groups			Gingivitis	Stage III periodontitis	Stage IV periodontitis	Total
Original	Count	Gingivitis	20	1	0	21
		Stage III periodontitis	1	20	2	23
		Stage IV periodontitis	1	8	27	36
	%	Gingivitis	95.2	4.8	0.0	100.0
		Stage III periodontitis	4.3	87.0	8.7	100.0
		Stage IV periodontitis	2.8	22.2	75.0	100.0