Table 4.

Results of univariate survival analysis

Variables	Cumulative survival proportion at 1 year	Log-rank test P	HR (95% CI)	P-value (Cox-regression)
Metabolic parameters
MTVwb
≥158.56 (n=23) versus	26.1	0.032	2.542 (1.050-6.158)	0.039
<158.56 (n=19)	63.2
Texture parameters (first order)
Mean
≤10.25 (n=22) versus	27.3	0.029	2.509 (1.070-5.884)	0.034
>10.25 (n=20)	60.0
Median				0.05
≤11.50 (n=19) versus	26.3	0.04	2.259 (1.00-5.104)
>11.50 (n=23)	56.5
RMS
≤11.27 (n=22) versus	27.3	0.029	2.509 (1.070-5.884)	0.034
>11.27 (n=20)	60.0
Texture parameters (s order)
Mean
≤10.45 (n=22) versus	27.3	0.029	2.509 (1.070-5.884)	0.034
>10.45 (n=20)	60.0
Auto-correlation
≤128.70 (n=22) versus	27.3	0.029	2.509 (1.070-5.884)	0.034
>128.70 (n=20)	60.0
Cluster prominence
≤20,526.42 (n=25) versus	24.0	0.004	3.929 (1.455-10.611)	0.007
>20,526.42 (n=17)	70.6
Cluster shade
≥−983 (n=23) versus	26.1	0.013	2.903 (1.198-7.034)	0.018
<−983 (n=19)	63.2
Sum average
≤22.51 (n=23) versus	26.1	0.012	2.954 (1.219-7.156)	0.016
>22.51 (n=19)	63.2
Sum variance
≤481.82 (n=21) versus	23.8	0.010	2.906 (1.237-6.825)	0.014
>481.82 (n=21)	61.9

HR: Hazard ratio, CI: Confidence interval, MTVwb: Metabolic tumor volume whole-body, RMS: Root mean square