Table 2.

F-scores reflecting the importance of patient characteristics in predicting patients’ survival statuses using the MRMR, Chi2, ANOVA, and Kruskal–Wallis analysis methods.

MRMR	F-score	Chi2	F-score	ANOVA	F-score	Kruskal–Wallis	F-score
Primary mass size	0	Hemoglobin	0.0776	Metastasis location	0.1307	ECOG PS	0.0869
Hemoglobin	0	Age	0.575	ECOG PS	0.3071	CA 19-9	0.0973
Sex	0	Sex	0.848	Hemoglobin	0.3126	Age	0.2168
Platelets	0	Neutrophils	1.0222	CA 19-9	0.3554	Platelets	0.5532
CA 19-9	0	CA 19-9	1.3251	Age	0.371	Sex	0.8463
Albumin	0	Primary mass size	1.3442	CEA	0.6396	Hemoglobin	0.9668
Sex	0.0001	Platelets	1.6856	Sex	0.8443	Chemotherapy response	1.8224
Tumor location	0.0002	CEA	1.965	Platelets	1.3294	Lymphocytes	1.8225
Number of lines of chemotherapy	0.0002	Albumin	2.1325	Albumin	1.482	Primary mass size	1.8582
Complaints	0.0002	Lymphocytes	2.9531	Primary mass size	1.7314	Albumin	2.1266
Number of cycles of chemotherapy	0.0002	Tumor location	2.9679	Tumor location	1.7777	Metastasis location	2.753
Neutrophils	0.0003	Complaints	3.3888	Lymphocytes	1.855	Neutrophils	2.9619
Chemotherapy response	0.0003	ECOG PS	4.4194	Chemotherapy response	2.5243	Tumor location	3.1575
Metastasis location	0.0003	LDH	4.7101	Neutrophils	2.7218	CEA	4.656
CEA	0.0003	Number of lines of chemotherapy	7.2615	Complaints	3.3574	Complaints	5.16
ECOG PS	0.0005	Number of cycles of chemotherapy	8.1784	LDH	5.7368	Number of lines of chemotherapy	7.2988
LDH	0.0029	Metastasis location	8.3732	Number of lines of chemotherapy	6.1043	LDH	8.0695
Lymphocytes	0.0037	Chemotherapy response	9.8239	Number of cycles of chemotherapy	10.7527	Number of cycles of chemotherapy	8.6998
First-line chemotherapy	0.0776	First-line chemotherapy	22.8596	First-line chemotherapy	23.0372	First-line chemotherapy	20.1004

ANOVA = analysis of variance, CA 19-9 = carbohydrate antigen 19-9, CEA = carcinoembryonic antigen, Chi2 = chi-square, ECOG PS = Eastern Cooperative Oncology Group performance status, LDH = lactate dehydrogenase, MRMR = minimum redundancy–maximum relevance.