Table 2.

Standardized regression coefficients of the adjusted linear regression analyses with continuous baseline fat mass index (FMI), lean mass index (LMI), and their interaction explaining health-related quality of life (HRQoL, RAND-36) domains at baseline

HRQoL baseline	Fat mass index		Lean mass index		FMI × LMI interaction
	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p
General health	− 0.27 (− 0.35 to − 0.18)	< 0.001	0.13 (0.03 to 0.23)	0.009	− 0.03 (− 0.10 to 0.03)	0.29
Physical functioning	− 0.38 (− 0.45 to − 0.30)	< 0.001	0.07 (− 0.02 to 0.17)	0.12	0.01 (− 0.06 to 0.06)	0.98
Role physical	− 0.18 (− 0.27 to − 0.09)	< 0.001	0.07 (− 0.04 to 0.17)	0.21	0.03 (− 0.03 to 0.10)	0.30
Bodily pain	− 0.10 (− 0.19 to − 0.01)	0.028	0.05 (− 0.05 to 0.16)	0.33	0.01 (− 0.05 to 0.08)	0.73
Mental health	0.01 (− 0.09 to 0.10)	0.90	0.01 (− 0.10 to 0.11)	0.88	− 0.04 (− 0.10 to 0.03)	0.25
Vitality	− 0.12 (− 0.21 to − 0.03)	0.007	0.08 (− 0.02 to 0.19)	0.12	− 0.06 (− 0.12 to 0.01)	0.089
Role emotional	0.01 (− 0.08 to 0.10)	0.81	− 0.08 (− 0.19 to 0.02)	0.12	− 0.04 (− 0.11 to 0.02)	0.20
Social functioning	− 0.06 (− 0.16 to 0.03)	0.18	0.05 (− 0.05 to 0.16)	0.32	0.03 (− 0.03 to 0.10)	0.31
Physical component score	− 0.32 (− 0.40 to − 0.23)	< 0.001	0.13 (0.03 to 0.22)	0.013	0.02 (− 0.04 to 0.08)	0.46
Mental component score	0.07 (− 0.03 to 0.16)	0.16	− 0.03 (− 0.13 to 0.08)	0.63	− 0.05 (− 0.11 to 0.02)	0.17

Independent variables included in the regression models: FMI, LMI, FMI × LMI interaction, sex, age, education, smoking, alcohol use, physical activity and severe long-term illness

The values of the standardized regression coefficients above 0.10, 0.30, and 0.50 represent small, moderate and large effect sizes, respectively