Table 2.

Logistic regression analysis for the association of periodontitis prevalence (dependent variable) and kidney function in relation to individuals with normal kidney function (GFR≥90) (referent group).

	Crude	Model 1	Model 2	Model 3
Kidney Function Variables	OR (95% CI)
Mildly Reduced Kidney Function (GFR=59–89)	3.42 (2.52–4.63)*	1.67 (1.12–2.48)*	1.92 (1.29–2.86)*	1.75 (1.13–2.71)*
Moderately/Severely Reduced Kidney Function (GFR<60)	7.94 (4.03–15.65)*	2.42 (1.19–5.02)*	2.49 (1.08–5.76)*	2.56 (1.01–6.48)*

Model 1 adjusted for: age and sex. Model 2 adjusted for: age, sex, smoking, diabetic control and duration, BMI, dental visit frequency and hypertension. Model 3 adjusted for: all variables in Model 2 as well as SES variables.

^*Indicates statistical significance