Understanding the Determinants of Weight-Related Quality of Life among Bariatric Surgery Candidates

Table 5

Univariate and multiple linear regression models to predict WRQL.

	Beta coefficient	P value	Adjusted 𝑅^2
Univariate linear regression
Waist circumference (cm)	−0.180	0.411	−0.008
PaO2 at rest (mmHg)	−0.057	0.869	−0.025
6MWT (meters)	0.049	0.224	0.013
PCS	1.067	0.002*	0.220
MCS	0.818	0.029*	0.101
Multiple linear regression			0.275
Waist circumference (cm)	−0.041	0.858
PaO2 at rest (mmHg)	−0.006	0.987
6MWT (meters)	−0.015	0.712
PCS	1.122	0.005
MCS	0.918	0.015

Abbreviations: PaO₂, arterial blood gases at rest; 6MWT, 6-minute walk test; PCS, physical component summary; MCS, mental component summary.
*Significant at <0.05.