Proximal gastrectomy with tubular stomach reconstruction vs total gastrectomy for proximal gastric cancer following neoadjuvant chemotherapy: A multicenter retrospective study

Table 1 Baseline characters of proximal and total gastrectomy groups after propensity score matching, n (%)

	TG (n = 122)	PG (n = 122)	P value
Gender			1.000
Male	98 (80.3)	98 (80.3)
Female	24 (19.7)	24 (19.7)
Age1, years	63.00 (59.50-68.25)	62.00 (58.00-67.00)	0.453
BMI1, kg/m2	24.11 (21.44-25.91)	23.40 (21.50-25.95)	0.673
ASA score			0.697
1-2	108 (88.5)	106 (86.9)
3	14 (11.5)	16 (13.1)
CCI score			0.494
≤ 2	80 (65.6)	85 (69.7)
> 2	42 (34.4)	37 (30.3)
Tumor size1, cm	3.00 (2.00-4.50)	3.00 (2.00-4.00)	0.771
Histologic differentiation			0.324
Poor/other types	72 (59.02)	61 (50.00)
Moderate	45 (36.89)	53 (43.44)
Well	13 (5.33)	8 (6.56)
Number of lymph nodes retrieved1	31.00 (22.75-4100)	32.50 (23.75-43.00)	0.455
Number of lymph node metastasis1, n	2.00 (0.00-8.00)	2.00 (0.00-5.25)	0.381
ypT stage			0.269
ypT0	16 (13.11)	19 (15.57)
ypT1a	9 (7.38)	4 (3.28)
ypT1b	10 (8.20)	5 (4.10)
ypT2	12 (9.84)	18 (14.75)
ypT3	33 (27.05)	25 (20.49)
ypT4a	40 (32.79)	50 (40.98)
ypT4b	2 (1.64)	1 (0.82)
ypN stage			0.509
ypN0	49 (40.16)	48 (39.34)
ypN1	21 (17.21)	22 (18.03)
ypN2	21 (17.21)	30 (24.59)
ypN3a	24 (19.67)	18 (14.75)
ypN3b	7 (5.74)	4 (3.28)
ypTNM stage
0	20 (16.4)	19 (15.6)
I	9 (7.4)	15 (12.3)
II	40 (32.8)	30 (24.6)
III	53 (43.4)	58 (47.5)
Vascular invasion			0.328
No	82 (67.2)	89 (73.0)
Yes	40 (32.8)	33 (27.0)
Perineural invasion			0.419
No	77 (63.1)	83 (68.0)
Yes	45 (36.9)	39 (32.0)	1.000
Radical resection
R0	121 (99.18)	120 (98.36)
R1/R2	1 (0.82)	2 (1.64)

¹Values are presented as median (Q1-Q3).

ASA: American Society of Anesthesiologists; CCI: Charlson comorbidity index; NACT: Neoadjuvant chemotherapy; PG: Proximal gastrectomy; TG: Total gastrectomy; TG: Total gastrectomy; BMI: Body mass index.