Table 4 Correlations between biological variables and PET variables retained for pred.score computation.

	Variance_{_GCLM}		Correlation__GLCM		JointEntropy_{_GLCM}		Busyness_{_NGLDM}
	ρ coefficient	p value*	ρ coefficient	p value*	ρ coefficient	p value*	ρ coefficient	p value*
Haemoglobin (g/dl)	− 0.447	0.0003	− 0.357	0.005	− 0.498	< 0.0001	0.342	0.007
WBC (G/L)	0.109	0.400	0.096	0.460	0.093	0.474	− 0.182	0.161
Platelets (G/l)	0.112	0.395	− 0.115	0.382	0.028	0.832	− 0.187	0.152
LDH (UI/l)	0.383	0.017	0.245	0.133	0.306	0.059	− 0.281	0.083
ß2-microglobulin (mg/l)	0.421	0.094	0.090	0.733	0.442	0.077	− 0.274	0.287
Albumin (g/l)	− 0.372	0.015	− 0.223	0.150	− 0.412	0.006	0.316	0.040
Calcium (mmol/l)	− 0.444	0.003	− 0.272	0.078	− 0.424	0.005	0.391	0.010
Alkaline phosphatase (UI/l)	− 0.011	0.943	0.128	0.385	− 0.038	0.799	− 0.094	0.523

*With Bonferroni correction a p value < 0.001 was considered statistically significant. Bold p values are significant. LDH: serum lactate dehydrogenase; WBC: white blood cells.

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