Table 3.

Association between the income perception and oral health

		OR (95% CI)
		Perception with the present income
	n	Very difficult to live	Difficult to live	Living	Living comfortably
Prosthetic need
Model 1	727	Ref	0.68 (0.41–1.12)	0.50 (0.30–0.83)	0.30 (0.14–0.62)
Model 2	619	Ref	0.58 (0.33–1.04)	0.48 (0.27–0.83)	0.29 (0.13–0.62)
Brushing < 2x/day
Model 1	766	Ref	0.97 (0.63–1.49)	0.67 (0.44–1.02)	0.50 (0.29–0.88)
Model 2	760	Ref	0.80 (0.49–1.32)	0.54 (0.33–0.87)	0.46 (0.25–0.86)
		RRR (95% CI)
Last dental procedure
Model 1	435
Tooth extraction – Ref		Ref	-	-	-
Routine		Ref	0.78 (0.36–1.72)	2.94 (1.26–5.94)	5.55 (2.22–13.85)
Other treatments		Ref	1.62 (0.70–3.76)	1.33 (0.57–3.06)	2.77 (0.92–8.27)

Model 1 adjusted for sex and age. Model 2 further adjusted for smoking habits and BMI

“Very difficult to live with the present income” considered as the reference group

OR Odds Ratio, RRR Relative Risk Ratio, Ref Reference