Table 6 Final model to predict the mental composite score of the SF 36.

Variable	Partial r2	p Value
Age	0.2%	0.25
Sex	<0.1%	0.93
Body mass index	1.2%	0.002
Gastric emptying
1 h	0.5%	0.04
2 h	0.2%	0.22
4 h	<0.1%	0.39
Centre type
Primary	<0.1%	0.42
Tertiary	<0.1%	0.80
Postprandial fullness	<0.1%	0.87
Bloating	0.3%	0.10
Early satiety	<0.1%	0.91
Epigastric pain	<0.1%	0.86
Nausea	1.5%	<0.001

Partial r² values from the multiple linear regression model reflect all variables included in the model.