Table 4.

Multiple ordinal logistic regression analysis according to the CDC/AAP case definition (Eke et al., 2012)

Variable	Categories	Periodontitis
		Multivariable analysis (Adjusted)
		OR [CI]	p-value
Age (years)		1.10 [1.05; 1.14]	< 0.001*
Gender (reference = Female)	Male	1.69 [1.31; 2.18]	< 0.001*
Smoking (reference = non smoker/Former smoker)	Current	1.30 [1.01;1.67]	0.039*
Education (reference ≤12 years)	>  12 years	0.82 [0.61;1.11]	0.213
Diabetes (reference = absence)	Presence	1.87 [1.07;3.27]	0.026*
Caries (reference = no caries)	1 caries	1.27 [0.78;2.04]	0.325
	2 caries	1.37 [0.86;2.26]	0.171
	3–4 caries	1.74 [1.12;2.29]	0.013*
	≥ 5 caries	2.47 [1.66;3.67]	< 0.001*

OR, Odds ratio

CI, Confidence Interval

*p < 0.05