Epidemiology and prognostic nomogram for locally advanced gastric signet ring cell carcinoma: A population-based study

doi:10.4251/wjgo.v16.i6.2610

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World Journal of Gastrointestinal Oncology

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Clinical and Translational Research

World J Gastrointest Oncol. Jun 15, 2024; 16(6): 2610-2630
Published online Jun 15, 2024. doi: 10.4251/wjgo.v16.i6.2610

Table 2 Baseline clinical characteristics of postoperative locally advanced gastric signet ring cell carcinoma patients in the training and test sets

Characteristics	LAGSRC (n = 3793)		P value²
Characteristics	Train set (n = 2655)¹	Internal test set (n = 1138)¹	P value²
Age (yr)	61.0 (13)	59.5 (13)	0.33
Sex			0.96
Female	1299 (48.9)	555 (48.8)
Male	1356 (51.1)	583 (51.2)
Year of diagnosis			0.87
2000-2003	687 (25.9)	306 (26.9)
2004-2007	788 (29.7)	342 (30.1)
2008-2011	638 (24)	264 (23.2)
2012-2015	542 (20.4)	226 (19.9)
Race			0.57
White	1771 (66.7)	779 (68.5)
Black	316 (11.9)	127 (11.2)
Other	568 (21.4)	232 (20.4)
Tumor size (cm)			0.81
< 2	140 (5.3)	53 (4.7)
2-5	962 (36.2)	415 (36.5)
> 5	1063 (40)	467 (41)
Unknown	490 (18.5)	203 (17.8)
Grade			0.26
G1/G2	81 (3.1)	24 (2.1)
G3/G4	2426 (91.4)	1053 (92.5)
Unknown	148 (5.6)	61 (5.4)
Primary site			0.88
Body	258 (9.7)	117 (10.3)
Cardia	335 (12.6)	152 (13.4)
Fundus	63 (2.4)	29 (2.5)
Gastric antrum	755 (28.4)	299 (26.3)
Greater curvature	147 (5.5)	59 (5.2)
Lesser curvature	353 (13.3)	148 (13)
Pylorus	131 (4.9)	66 (5.9)
Overlapping lesion	314 (11.8)	142 (12.5)
Unknown	299 (11.3)	126 (11.1)
PT 8^th			0.67
T1	118 (4.4)	40 (3.5)
T2	142 (5.3)	94 (8.3)
T3	976 (36.8)	370 (32.5)
T4a	851 (32.1)	374 (32.9)
T4b	568 (21.4)	260 (22.8)
PN 8^th			0.84
N0	423 (15.9)	195 (17.1)
N1	497 (18.7)	203 (17.8)
N2	585 (22)	254 (22.3)
N3a	737 (27.8)	318 (27.9)
N3b	413 (15.6)	168 (14.8)
Pathologic stage			0.11
IB	78 (2.9)	19 (1.7)
IIA	322 (12.1)	137 (12)
IIB	337 (12.7)	162 (14.2)
IIIA	599 (22.6)	280 (24.6)
IIIB	742 (27.9)	295 (25.9)
IIIC	577 (21.7)	245 (21.5)
Lymph node count	16 (13)	16 (14)	0.52
Chemotherapy status			0.18
No/unknown	865 (32.6)	345 (30.3)
Yes	1790 (67.4)	793 (69.7)
Radiation status			0.45
No/unknown	1461 (55)	289 (37)
Yes	1194 (45)	486 (63)

¹Mean (SD); n (%).

²Welch Two Sample t test; Pearson's chi-squared test.

For race, ‘other’ includes American Indian, AK Native, Asian, and Pacific Islander.

LAGSRC: Locally advanced gastric signet ring cell carcinoma; PT: Pathological tumor stage; PN: Pathological node stage.

Citation: Yu ZH, Zhang LM, Dai ZQ, Zhang MN, Zheng SM. Epidemiology and prognostic nomogram for locally advanced gastric signet ring cell carcinoma: A population-based study. World J Gastrointest Oncol 2024; 16(6): 2610-2630
URL: https://www.wjgnet.com/1948-5204/full/v16/i6/2610.htm
DOI: https://dx.doi.org/10.4251/wjgo.v16.i6.2610