The frequency of periodontitis in end-stage renal disease on hemodialysis in a sample of Egyptian population: multi-center clinical cross-sectional study

Table 4 Linear regression model between serum creatinine, sex, age and duration of hemodialysis (as dependent variable) and different periodontal parameters (as independent variable)

Outcome	Regression coefficient	Beta (95% CI) for regression coefficient		p-value
Outcome	Regression coefficient	Lower	Upper	p-value
Age	− 0.06	− 0.07	− 0.04	< 0.001*
Sex	0.09	− 0.25	0.43	0.608 ns
Mean probing depth (mm)	− 0.39	− 0.61	− 0.17	< 0.001*
Plaque %	− 0.002	− 0.02	0.02	0.803 ns
BOP %	− 0.006	− 0.02	0.01	0.356 ns
Mean CAL (mm)	− 0.24	− 0.31	− 0.16	< 0.001*
Number of teeth	− 0.22	− 0.26	− 0.17	< 0.001*
% of sites with CAL ≥ 4 mm	− 0.03	− 0.03	− 0.02	< 0.001*
% of sites with PD ≥ 3 mm	− 0.03	− 0.03	− 0.02	< 0.001*
Duration of hemodialysis	− 0.01	− 0.03	0.02	0.532 ns

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