Table 2 Basic information of the study population

Mean age, year

58.46 ± 17.35 (37–88 years)

Gender

 Male

5

 Female

8

Clinical symptom

 Urine leakage

9

 Seroperitoneum

1

 Acute peritonitis

2

 Electrolyte disturbances accompanied with hypourocrinia

1

Cause of symptom^a

 Traumatism

1 (2)

 Iatrogenic bladder fistula

4 (5)

 Radiational damage

1 (2)

 Acute kidney injury

1 (2)

 Iatrogenic ureteral fistula

6 (9)