1. Correlation between port complications and patient clinical characteristics (N=249).

Variables	N	With complications [n (%)]	Without complications [n (%)]	P
BMI, body mass index; ECOG PS, Eastern Cooperative Oncology Group performance status; PCI, peritoneal cancer index; Yes, gastrectomy plus with port implantation; No, port implantation only; LS, laparoscopic exploration surgery; Open, port implanted with open surgery; Before, before the optimization of port implantation procedure; After, after the optimization of port implantation procedure.
Sex				0.132
Male	109	20 (8.0)	89 (35.7)
Female	140	37 (14.9)	103 (41.4)
Age (year)				0.201
<60	166	42 (16.9)	124 (49.8)
≥60	83	15 (6.0)	68 (27.3)
BMI (kg/m2)				0.208
<23	174	36 (14.5)	138 (55.4)
≥23	75	21 (8.4)	54 (21.7)
ECOG PS				0.001
0	102	11 (4.4)	91 (36.5)
1	114	35 (14.1)	79 (31.7)
2	33	11 (4.4)	22 (8.8)
PCI				0.113
0−10	65	9 (3.6)	56 (22.5)
11−20	71	20 (8.0)	51 (20.5)
21−39	113	28 (11.2)	85 (34.1)
Ascites				0.381
Present	229	54 (21.7)	175 (70.3)
Absent	20	3 (1.2)	17 (6.8)
Prior chemotherapy				0.710
Present	78	19 (7.6)	59 (23.7)
Absent	171	38 (15.3)	133 (53.4)
Simultaneous surgery				0.322
Yes	10	1 (0.4)	9 (3.6)
No	239	56 (22.5)	183 (73.5)
Albumin (g/L)				<0.001
<35	68	28 (11.2)	40 (16.1)
≥35	181	29 (11.6)	152 (61.0)
Hemoglobin				0.168
Anemia	133	35 (14.1)	98 (39.4)
Normal	116	22 (8.8)	94 (37.8)
Glucose				0.441
Euglycemia	225	50 (20.1)	175 (70.3)
Hyperglycemia	24	7 (2.8)	17 (6.8)
Implantation approach				0.477
LS	241	56 (22.5)	185 (74.3)
Open	8	1 (0.4)	7 (2.8)
Implantation procedure				<0.001
Before	114	38 (15.3)	76 (30.5)
After	135	19 (7.6)	116 (46.6)
Implantation group				0.001
Specialized group	181	32 (12.9)	149 (59.8)
Other groups	68	25 (10.0)	43 (17.3)