Metastasis to the gallbladder: A single-center experience of 20 cases in South Korea

Table 3 Univariate analysis of the factors associated with survival after a diagnosis of MGB

Factor	Median survival1	P value
Sex		0.794
Male (n = 14)	11.2
Female (n = 6)	6.2
Primary origin		0.224
Gastrointestinal organs (n = 15)	8.2
Non-gastrointestinal organs (n = 5)	35.0
Chronological relationship between primary malignancy and MGB		0.913
Synchronous (n = 8)	11.2
Metachronous (n = 12)	6.9
Asymptomatic upon diagnosis of MGB		0.023
Yes (n = 5)	40.0
No (n = 15)	6.9
Presentation with acute cholecystitis		< 0.001
Yes (n = 4)	2.8
No (n = 16)	15.6
Preoperative diagnosis of MGB		0.007
Yes (n = 9)	35.0
No (n = 11)	4.7
Age at diagnosis of the MGB (yr)		0.009
≥ 70 (n = 5)	6.2
< 70 (n = 15)	21.2
Secondary involvement of organs other than the GB		0.586
Yes (n = 11)	15.6
No (n = 9)	8.7
Recurrence at the remaining primary site		0.252
Yes (n = 1)	4.7
No (n = 19)	11.2
R0 resection		< 0.001
Yes (n = 9)	40.0
No (n = 11)	6.2

¹Value in months. Results of log-rank test. MGB: Metastasis to the gallbladder; GB: Gallbladder.