Table 4.

Multivariable Linear Regression Model of the Relationship of τ _PCr (s) With RMR (kcal/day) After Adjusting for Covariates, Including Multimorbidity (Model 2)

Variable	Beta Coefficient	Standard Error	p Value
τ PCr (s)	−2.04	0.99	.03
Age	−7.38	0.89	<.0001
Sex (male = 1, female = 0)	237.6	30.15	<.0001
Lean body mass (kg)	0.002	1.27	<.0001
Fat body mass (kg)	1.25	1.10	.26
Physical activity (kcal/week)	−0.002	0.002	.24
Multimorbidity	26.22	7.05	.0002