Table 1.

Descriptive data of ESRD patients with different stages of periodontitis

Parameter	Total sample			Periodontitis stage			p value
	Mean ± SD			Stage (II)	Stage (III)	Stage (IV)
Age	48.12 ± (9.80)			0.707			< 0.001*
Sex		Male	N%	30	57	53	0.509
				21.4%	40.7%	37.9%
		Female	N%	22	37	26
				25.9%	43.5%	30.6%
Medical condition
Hypertension			N%	40	68	63
				23.4%	39.8%	36.8%
Secondary hyperparathyroidism			N%	6	1	8
				40.0%	6.7%	53.3%
Virus C			N%	13	21	27
				21.3%	34.4%	44.3%
Diabetes mellitus			N%	8	43	24
				10.7%	57.3%	32.0%
Clinical parameters
Mean probing depth (mm)	4.50 ± 0.74
Mean CAL (mm)	6.30 ± 2.06
Plaque %	24.74 ± 9.66
BOP%	48.66 ± 13.65
Number of teeth	3.51 ± 3.03
% of sites with CAL ≥ 4 mm	33.79 ± 22.26
% of sites with PD ≥ 3 mm	28.15 ± 20.00
Biochemical analysis
Duration of hemodialysis	16.01 ± 6.41						0.008*
Blood urea (mg/dl)	134.15 ± 33.44
Serum creatinine (mg/dl)	4.54 ± 1.25