Table 4. Significant independent predictors of unstimulated whole salivary flow rate (UWSFR) in multivariate analysis .

	B	β	95% CI (B)	P value
Constant	0.615	-	0.544 to 0.687	< 0.001
Age	-0.004	-0.250	- 0.006 to - 0.002	< 0.001
Missing teeth	-0.015	-0.162	- 0.027 to - 0.002	0.021

B: un-standardized regression coefficient. β: standardized regression coefficient, CI: confidence interval. R = 36%, adjusted R² = 12%