Table 3. Factors associated with the older adults’ self-perception of low oral health. Health Centers North Lisbon, 2012-2013.

Variable	ORcrude	90%CI	p	ORadjusted to age	90%CI	p
Age (years)			0.245
65-74*
75-84	1.670	1.003–2.783	0.098
≥ 85	1.099	0.424–2.844	0.871
Marital status			0.320			0.255
Married or cohabitation*
De facto separated or divorced	0.739	0.258–2.122	0.638	0.698	0.242–2.015	0.577
Single	3.081	1.071–8.860	0.080	3.221	1.110–9.349	0.071
Widower	1.005	0.575–1.755	0.989	0.883	0.494–1.577	0.724
Last dental appointment			0.033			0.026
More than a year ago*
Less than a year ago	2.283	1.350–3.859	0.010	2.361	1.391–4.009	0.008
Does not know	1.348	0.557–3.262	0.579	1.345	0.554–3.268	0.583

* Reference class.