Table 3.

Predictive factors for the normalized scores determined using uni- and multivariate analyses.

MSTS
Characteristics	Univariate			Multivariate
	β	95% CI	p	β	95% CI	p
Local control	0.29	−0.4, 0.99	0.41	0.21	−0.34, 0.71	0.48
Adverse event	0.58	−0.049, 1.2	0.07	0.3	−0.15, 0.81	0.17
GTV volume	−0.00015	−0.0009, 0.00059	0.68	−0.00033	−0.00084, 0.00028	0.32
KPS	−0.055	−0.073, −0.037	<0.0001	−0.057	−0.070, −0.034	<0.0001
Sex	−0.73	−1.26, −0.19	0.0085	0.66	0.20, 1.1	0.0052
Total dose	0.12	0.0061, 0.23	0.039	0.00023	−0.10, 0.093	0.93
PCS of SF−8
Characteristics	Univariate			Multivariate
	β	95% CI	p	β	95% CI	p
Local control	0.048	−0.21, 0.31	0.72	0.037	−0.20, 0.28	0.75
Adverse event	0.031	−0.21, 0.27	0.79	−0.027	−0.24, 0.019	0.81
GTV volume	0.000066	−0.00021, 0.00034	0.63	−0.000029	−0.0024, 0.00028	0.82
KPS	−0.014	−0.022, −0.0059	0.0008	−0.013	−0.020, −0.0042	0.0037
Sex	−0.25	−0.46, −0.054	0.014	0.21	0.0043, 0.41	0.045
Total dose	0.047	0.0053, 0.088	0.028	0.014	−0.030, 0.057	0.54
MCS of SF−8
Characteristics	Univariate			Multivariate
	β	95% CI	p	β	95% CI	p
Local control	−0.069	−0.20, 0.064	0.31	−0.068	−0.20, 0.069	0.32
Adverse event	0.056	−0.15, 0.093	0.63	0.05	−0.14, 0.12	0.88
GTV volume	−0.00003	−0.00017, 0.0070	0.67	−0.000022	−0.000017, 0.00013	0.77
KPS	0.0026	−0.0017, 0.0070	0.23	0.0026	−0.0022, 0.0073	0.28
Sex	0.054	−0.054, 0.16	0.32	0.057	−0.062, 0.18	0.34
Total dose	0.0016	−0.021, 0.024	0.89	0.00062	−0.025, 0.026	0.96

The results of the univariate and multivariate logistic regression models are shown. In the “Sex” category, male was indicated as 0 and female was indicated as 1. Adverse events refer to late adverse events. Late adverse events classified as Grade 1 or less corresponded to 0, and those graded as Grade 2 or more corresponded to 1. Abbreviations: MSTS = musculoskeletal tumor society score; PCS = physical component score; MCS = mental component score; CI = confidence interval; p = p-value.