Impact of biliary stent-related events in patients diagnosed with advanced pancreatobiliary tumours receiving palliative chemotherapy

Table 3 Risk of development of stent-related event increased with longer follow-up period in the absence of competing event (death)

Time-point of follow-up since first biliary stenting	Estimated risk of development of SRE rate for all patients
3 mo	11.5% (95%CI: 6.5-19.7)
6 mo	32.0% (95%CI: 23.5-42.7)
12 mo	48.6% (95%CI: 37.5-61)
18 mo	59.9% (95%CI: 44-76.5)
24 mo	79.9% (95%CI: 48.03-98.1)

SRE: Stent-related event.