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Table 4 Standardized effects of physical function, dental status and oral function on GOHAI with correlated errors

From: Dysphagia and masticatory performance as a mediator of the xerostomia to quality of life relation in the older population

Outcomes Direct effect Indirect effect Total effect R2 (%)
Functional teeth     15.1%
 Xerostomia→ Functional teeth -0.11*** -0.11***  
Occlusal condition     14.0%
 Xerostomia→ Occlusal condition 0.09** 0.09**  
Dysphagia     9.2%
 Functional teeth → Dysphagia 0.10 0.10  
 Occlusal condition→ Dysphagia 0.11 0.11  
 Xerostomia → Dysphagia 0.20*** -0.001 0.20***  
Masticatory performance     38.2%
 Functional teeth→ Masticatory -0.43*** -0.43***  
 Occlusal condition→Masticatory 0.13* 0.13*  
 Xerostomia→ Masticatory 0.06* 0.06*** 0.12***  
GOHAI     13.6%
 Functional teeth → GOHAI 0.03 0.03 0.06  
 Occlusal condition → GOHAI -0.03 -0.03* -0.05  
 Dysphagia → GOHAI -0.12*** -0.12***  
 Masticatory → GOHAI -0.09* -0.09*  
 Xerostomia → GOHAI -0.20*** -0.04*** -0.24***  
  1. The covariates including age, gender and education
  2. R2: the variance of endogenous variables that is explained
  3. *p<0.05, **p<0.01, ***p<0.001