Optimizing prognostic factors of five-year survival in gastric cancer patients using feature selection techniques with machine learning algorithms: a comparative study

Table 3 Characteristics of patients with gastric cancer

N	Features Name	Classifications	Total	Survived	Did not survived
N	Features Name	Classifications	Total	N	N
1	Age at diagnosis	< 45	233	197	36
1	Age at diagnosis	> > 45	741	483	258
2	Sex	Female	326	218	108
2	Sex	Male	648	462	186
3	Body weight	< 60	263	174	89
3	Body weight	> > 60	711	506	205
4	Weight loss	Yes	369	231	138
4	Weight loss	No	605	449	156
5	Addiction	Yes	117	47	70
5	Addiction	No	857	506	351
6	History of other cancers	Yes	155	74	81
6	History of other cancers	No	819	606	213
7	Family history of gastric cancer	Yes	23	7	16
7	Family history of gastric cancer	No	951	673	278
8	Family history of other cancers	Yes	62	27	35
8	Family history of other cancers	No	912	653	259
9	Tumor size	<< 3 CM	326	269	57
		3–6 CM	459	324	135
		> 6	189	87	102
10	Tumor stage	IA	43	31	12
		IB	134	107	27
		IIA	149	117	32
		IIB	190	149	41
		IIIA	177	126	51
		IIIB	129	47	82
		IIIC	152	83	69
11	Tumor site	Lower third	315	288	27
		Middle third	340	256	84
		Upper third	284	132	152
		Whole stomach	35	4	31
12	Metastatic status	Yes	227	93	134
		No	549	437	112
		Unknown	198	150	48
14	Lymphatic invasion	Positive	642	433	209
14	Lymphatic invasion	Negative	332	247	85
15	Vascular invasion	Positive	583	364	219
15	Vascular invasion	Negative	391	316	75
16	Histopathology type	Adenocarcinoma	670	507	163
		Lymphoma	146	98	48
		Sarcoma	158	75	83
17	Type of treatment	Surgery	192	75	117
		Chemotherapy	366	292	74
		Surgery + Chemotherapy + Radiotherapy	416	313	103
Outcome		Alive	974	399	575
Outcome		Death	974	399	575

ISSN: 1472-6947