Table 5.

Multiple linear regression describing the influence of continuous variables on the total OHIP-14 score, with regression coefficients (B) and correspondent 95% confidence intervals (95% CI)

	OHIP-14 Total Score
	B	p-value
Age	−0.24 (− 0.36, − 0.97)	< 0.001***
SXI-5 Total	1.20 (0.77–1.63)	< 0.001***
PSS-10 Total	0.35 (0.26–0.45)	< 0.001***
Missing teeth	0.24 (0.13–0.35)	< 0.001***
Mean PD	1.56 (0.62–2.51)	0.001**

**p < 0.01 and ***p < 0.001. R² = 0.51

OHIP-14 Oral Health Impact Profile-14, PSS-10 Perceived Stress Scale-10, SXI-5 Summated Xerostomia Inventory-5