A Multicenter, Prospective Study of a New Fully Covered Expandable Metal Biliary Stent for the Palliative Treatment of Malignant Bile Duct Obstruction

Table 3

Key effectiveness results.

Measure	Measure of success; 𝑁 (%)	[95% CI]
Primary endpoint
Adequacy of palliation	54 (98.2%)	[90.3%, 100%]*
Secondary endpoints
Stent deployment/technical success	57 (98.3%)	[90.8%, 100%]
Number of biliary obstructive symptoms at baseline
Mean ± SD (𝑁)	2.7±1.76	[2.0, 3.50]
Range (Min, Max)	(1, 8)
Median	2
Number of biliary obstructive symptoms at month 6
Mean ± SD (𝑁)	0.1±0.46	[0.00, 0.33]
Range (Min,Max)	(0, 2)
Median	0
Stent patency	21 (91.3%)	[72.0%, 98.9%]
Reduction of bilirubin level at month 1	44 (97.8%)	[88.2%, 99.9%]

∗Intent-to-treat (58).