Table 4.

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

HRQoL change	Fat mass index		Lean mass index		FMI × LMI interaction
	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p
General health	− 0.13 (− 0.20 to − 0.06)	0.001	− 0.01 (− 0.09 to 0.08)	0.90	− 0.01 (− 0.06 to 0.05)	0.84
Physical functioning	− 0.11 (− 0.18 to − 0.04)	0.002	− 0.01 (− 0.09 to 0.07)	0.80	− 0.01 (− 0.05 to 0.05)	0.94
Role physical	− 0.13 (− 0.22 to − 0.05)	0.003	0.01 (− 0.09 to 0.11)	0.82	0.01 (− 0.05 to 0.07)	0.67
Bodily pain	− 0.08 (− 0.16 to 0.01)	0.058	− 0.07 (− 0.17 to 0.02)	0.12	0.05 (− 0.01 to 0.11)	0.075
Mental health	− 0.02 (− 0.10 to 0.06)	0.57	− 0.07 (− 0.16 to 0.02)	0.15	− 0.03 (− 0.08 to 0.01)	0.33
Vitality	− 0.08 (− 0.16 to − 0.01)	0.027	− 0.04 (− 0.12 to 0.05)	0.37	0.02 (− 0.03 to 0.08)	0.41
Role emotional	− 0.12 (− 0.20 to − 0.03)	0.007	0.04 (− .06 to 0.14)	0.40	− 0.01 (− 0.06 to 0.06)	0.94
Social functioning	− 0.06 (− 0.14 to 0.03)	0.19	− 0.03 (− 0.13 to 0.07)	0.51	− 0.04 (− 0.10 to 0.02)	0.24
Physical component score	− 0.14 (− 0.22 to − 0.07)	< 0.001	− 0.02 (− 0.11 to 0.06)	0.58	0.02 (− 0.03 to 0.08)	0.43
Mental component score	− 0.03 (− 0.11 to 0.05)	0.49	− 0.02 (− 0.12 to 0.08)	0.68	− 0.03 (− 0.08 to 0.03)	0.40

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

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