Table 4.

Mixed model analysis with walk steps for 8 weeks.

For 8 weeks	P value for weeks	P value for variables	P value for interaction
Age (<60 vs ≥60 years)	<.001	.006	.39
Pre-RTa BMI (≥20 vs <20 kg/m2)	.001	.17	.98
Post-RT BMI (≥20 vs <20 kg/m2)	.001	.67	.47
-ΔBMI (>5% vs <5% kg/m2)	<.001	.98	.096
Pre-RT sarcopenia (yes vs no)	<.001	.55	.03
Post-RT sarcopenia (yes vs no)	.001	.44	.64
-ΔSMIb/50 days >10% (>10% vs <10%)	<.001	.42	.43
Surgery (Yes vs No)	.007	.08	.96

^aRT: radiotherapy.

^bSMI: skeletal muscle index.